TYPES A B C OF CIRCUIT BREAKERS PDF



Types A B C Of Circuit Breakers Pdf

Understanding Trip Curves. 6 Circuit Breakers for Naval Shipboard Use PG01218003E—January 2010 www.eaton.com Types ALB-1 and NLB-1 Circuit Breakers for Naval Shipboard Use — Types ALB-1 and NLB-1 Breakers 125 Volts ac and dc, 50 Amperes Maximum, 5000 Amperes I.C. ALB-1 Navy Circuit Breaker Note: Clamp type stab terminal for panelboard mounting at line end, 1-8 EATON CORPORATION Cutler-Hammer Retail Solutions Book — 1-877-932-9322 — Circuit Breakers — Effective August 2005 Circuit Breakers Accessories TABLE 1-13. FIELD INSTALLATION KITS AND PARTS Handle Ties: Typically used to join two similar independent single-pole breakers to form a 2-pole noncommon trip breaker..

Special Insert Everything you wanted to know about Type B

Types of Circuit Breakers RELECTRIC. Instead, the ampere figure is preceded by a letter, B, C, or D, which indicates the instantaneous tripping current — that is, the minimum value of current that causes the circuit breaker to trip without intentional time delay (i.e., in less than 100 ms), expressed in terms of I n:, view of the various types of circuit breakers used over the last 100 years by ASEA and Brown Boveri, and, more recently, ABB1). Water- and oil breakers appeared ear-ly on in circuit-breaker development and worked at very low levels of cur- The circuit breaker 7 f a b c.

circuit breakers have pressure plate terminals suitable for single-wire terminations. These circuit breakers are suitable for use with 60°C or 75°C conductors. The QO 35–200 A and all QO-PL and QOT tandem circuit breakers have box-type lugs suitable for single-wire terminations. These circuit breakers are suitable for use with 75°C conductors. Vacuum circuit breakers have a small switching stroke as compared with other types of circuit breakers, so their breaking unit is small in size. To take full advantage of this feature, the operating mechanism has been designed to reduce the size and mass of the circuit breakers.

Vacuum circuit breakers have a small switching stroke as compared with other types of circuit breakers, so their breaking unit is small in size. To take full advantage of this feature, the operating mechanism has been designed to reduce the size and mass of the circuit breakers. view of the various types of circuit breakers used over the last 100 years by ASEA and Brown Boveri, and, more recently, ABB1). Water- and oil breakers appeared ear-ly on in circuit-breaker development and worked at very low levels of cur- The circuit breaker 7 f a b c

Moeller has just expanded its FAZ line of miniature circuit breakers to include de-vices that are listed and certified as molded case circuit breakers per UL 489 and CSA 22.2, No. 5-02. These new branch circuit breakers, called FAZ-NA, are ideal for the protection of power supplies, control power transformers, HVAC, refrigeration Moeller has just expanded its FAZ line of miniature circuit breakers to include de-vices that are listed and certified as molded case circuit breakers per UL 489 and CSA 22.2, No. 5-02. These new branch circuit breakers, called FAZ-NA, are ideal for the protection of power supplies, control power transformers, HVAC, refrigeration

5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with It should be stressed that the primary purpose of circuit protection devices such as miniature circuit breakers and fuses is to protect the cable downstream of the device. The essential distinction between Type B, C or D devices is based on their ability to handle surge currents without tripping.

For iC60 circuit breakers and iID residual current circuit breakers Residual current devices iDPN Vigi 42 Electrical auxiliaries 44 For iC60, iID, iSW-NA, RCA and ARA Accessories 48 For iC60, iID, iSW-NA, Reflex iC60, RCA and ARA iK60N circuit breakers 52 (curve C) iID K residual current circuit breakers 55 Multiclip 80 A splitter block 57 Square D™ QO™ and QOB Miniature Circuit Breakers. QO(B) miniature circuit breakers for QO systems. QO(B) circuit breakers come in plug-on or bolt-on options and a complete range of amperages and interrupting ranges to fit into various QO distribution panels. QO is the “World’s Finest” Industry leading offer since 1955, with features

13 Miniature and residual circuit breakers. Moeller has just expanded its FAZ line of miniature circuit breakers to include de-vices that are listed and certified as molded case circuit breakers per UL 489 and CSA 22.2, No. 5-02. These new branch circuit breakers, called FAZ-NA, are ideal for the protection of power supplies, control power transformers, HVAC, refrigeration, Chapter (2) Circuit Breakers 2.1 Introduction A circuit breaker is required to perform the following three duties: 1. It must be capable of opening the faulty circuit types of schemes. Dead Tank C.B. •dead-tank circuit breakers, the switching device is.

Masterpactв„ў NW DC Circuit Breakers

types a b c of circuit breakers pdf

Molded-Case Circuit Breakers Eaton. MIT International Journal of Electrical and Instrumentation Engineering, Vol. 2, No. 2, Aug. 2012, pp. (106-111) 109 (b) Self Generated Pressure Oil Circuit Breaker In these type of C.B…, Different types of circuit breakers including oil circuit breaker brands can be found by visiting an electrical equipment company like https://www.relectric.com. How Many Circuit Breakers? The circuit breaker panel in your home contains separate circuits for various areas in your home. Each circuit can handle a certain power load..

MINIATURE CIRCUIT BREAKERS & RESIDUAL CURRENT DEVICES. 6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ..., 11/2/2017 · Other Relevant articles for Electric Circuit Breakers and their Types. What are Miniature Circuit Breakers (MCB) Understanding Circuit Breaker Specifications; Types of Circuit Breakers and their Applications; What does Miniature Circuit Breakers (MCB) mean and when looking at the types, B, C, and D, what should I know? Example Product. Type B.

What is the meaning of the B C D K and Z curves for C60

types a b c of circuit breakers pdf

Masterpactв„ў NW DC Circuit Breakers. 5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with circuit breakers have pressure plate terminals suitable for single-wire terminations. These circuit breakers are suitable for use with 60°C or 75°C conductors. The QO 35–200 A and all QO-PL and QOT tandem circuit breakers have box-type lugs suitable for single-wire terminations. These circuit breakers are suitable for use with 75°C conductors..

types a b c of circuit breakers pdf


LS Miniature Circuit Breakers and RCDs / RCBOs Product Description & Specifications: Features of the range include - • From 1 to 125A, the LS range of miniature circuit breakers cover most applications • In 6 and 10kA or C & D curve starting • In 18 and 27mm width • RCD units in 2 and 4 pole 40 and 63A and RCBO units from 6 to 32A in 4.5kA Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to

NOTE: For UL Listed circuit breakers, the clusters are mounted on the circuit breaker; for IEC Rated circuit breakers, the clusters are mounted on the cradle. A. Overcurrent Trip Switch (SDE1) B. Circuit Breaker Communication Module C. Overcurrent Trip Switch (SDE2) or … The Merlin Gerin, Multi 9, C60H range of miniature circuit breakers are suitable for interrupting fault currents up to 10kA ,415V. This model is suitable for protection of circuits against overload and short circuits in general commercial and industrial di...

illustrate our range of circuit breakers according to the nominal current of the load and short-circuit current at the point of installation. b Circuit breaker rating. b Breaking capacity of the circuit breaker. 1 pole isolation solution (1P) Breaking capacity (kA) Icu IEC 60947-2 Maximum rating (A) y 10 y 15 y 20 y 25 y 36 y 63 y 80 y 125 u The Merlin Gerin, Multi 9, C60H range of miniature circuit breakers are suitable for interrupting fault currents up to 10kA ,415V. This model is suitable for protection of circuits against overload and short circuits in general commercial and industrial di...

NOTE: For UL Listed circuit breakers, the clusters are mounted on the circuit breaker; for IEC Rated circuit breakers, the clusters are mounted on the cradle. A. Overcurrent Trip Switch (SDE1) B. Circuit Breaker Communication Module C. Overcurrent Trip Switch (SDE2) or … Instead, the ampere figure is preceded by a letter, B, C, or D, which indicates the instantaneous tripping current — that is, the minimum value of current that causes the circuit breaker to trip without intentional time delay (i.e., in less than 100 ms), expressed in terms of I n:

B residual current circuit breakers The new edition of IEC/EN 62423 further enriches the set of residual cur - rent waveforms with which the Type B circuit breakers must be tested. The vast number of waveforms contem-plated - which include various unidi-rectional forms, direct current without ripple, high-frequency currents and dif - Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to

types a b c of circuit breakers pdf

6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ... LS Miniature Circuit Breakers and RCDs / RCBOs Product Description & Specifications: Features of the range include - • From 1 to 125A, the LS range of miniature circuit breakers cover most applications • In 6 and 10kA or C & D curve starting • In 18 and 27mm width • RCD units in 2 and 4 pole 40 and 63A and RCBO units from 6 to 32A in 4.5kA

Circuit breakers for direct current applications

types a b c of circuit breakers pdf

Chapter (2) Circuit Breakers. 6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ..., Instead, the ampere figure is preceded by a letter, B, C, or D, which indicates the instantaneous tripping current — that is, the minimum value of current that causes the circuit breaker to trip without intentional time delay (i.e., in less than 100 ms), expressed in terms of I n:.

3AH5 Vacuum Circuit-Breakers Siemens

What is the meaning of the B C D K and Z curves for C60. Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to, B residual current circuit breakers The new edition of IEC/EN 62423 further enriches the set of residual cur - rent waveforms with which the Type B circuit breakers must be tested. The vast number of waveforms contem-plated - which include various unidi-rectional forms, direct current without ripple, high-frequency currents and dif -.

NOTE: For UL Listed circuit breakers, the clusters are mounted on the circuit breaker; for IEC Rated circuit breakers, the clusters are mounted on the cradle. A. Overcurrent Trip Switch (SDE1) B. Circuit Breaker Communication Module C. Overcurrent Trip Switch (SDE2) or … 5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with

Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to that the contacts of the vacuum circuit-breakers are momen-tarily in the closed position, which is permissible according to IEC 62271-100. 3AH5 Vacuum Circuit-Breakers Description Construction and mode of operation R-HG11-186.tif R-HG11-187.tif Circuit-breaker structure Front view Open operating mechanism box 1 Pole assembly 2 Operating

Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to Product Description Ordering Key GMB63 H 1P C 20 R Competitive line of UL 489 miniature circuit breakers for 240VAC and 480Y/277VAC application where supple-mentary or branch circuit protection is required. GMB circuit breakers are available in 1, 2 and 3 pole …

An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting Vacuum circuit breakers have a small switching stroke as compared with other types of circuit breakers, so their breaking unit is small in size. To take full advantage of this feature, the operating mechanism has been designed to reduce the size and mass of the circuit breakers.

11/2/2017 · Other Relevant articles for Electric Circuit Breakers and their Types. What are Miniature Circuit Breakers (MCB) Understanding Circuit Breaker Specifications; Types of Circuit Breakers and their Applications; What does Miniature Circuit Breakers (MCB) mean and when looking at the types, B, C, and D, what should I know? Example Product. Type B that the contacts of the vacuum circuit-breakers are momen-tarily in the closed position, which is permissible according to IEC 62271-100. 3AH5 Vacuum Circuit-Breakers Description Construction and mode of operation R-HG11-186.tif R-HG11-187.tif Circuit-breaker structure Front view Open operating mechanism box 1 Pole assembly 2 Operating

6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ... 6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ...

MINIATURE CIRCUIT BREAKERS UP TO 63A • 1P, 1P+N, 2P, 3P and 4P versions • IEC rated current In: 1…63A • IEC short-circuit breaking capacity Icn: 10kA (6kA for 1P+N) • Trip characteristic curve: Type B, C, D • UL 1077 or UL 489 certified versions. Page 13-2 Page 13-10 MINIATURE CIRCUIT BREAKERS 80…125A • 1P, 2P, 3P and 4P versions MIT International Journal of Electrical and Instrumentation Engineering, Vol. 2, No. 2, Aug. 2012, pp. (106-111) 109 (b) Self Generated Pressure Oil Circuit Breaker In these type of C.B…

Instead, the ampere figure is preceded by a letter, B, C, or D, which indicates the instantaneous tripping current — that is, the minimum value of current that causes the circuit breaker to trip without intentional time delay (i.e., in less than 100 ms), expressed in terms of I n: 11/2/2017 · Other Relevant articles for Electric Circuit Breakers and their Types. What are Miniature Circuit Breakers (MCB) Understanding Circuit Breaker Specifications; Types of Circuit Breakers and their Applications; What does Miniature Circuit Breakers (MCB) mean and when looking at the types, B, C, and D, what should I know? Example Product. Type B

5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting

for molded-case circuit breakers, the only way for third-party breaker refurbishers to get parts for the breakers that they are rebuilding is to cannibalize other used breakers or to use counterfeit components. Neither is a very good option for the end user In some cases, unauthorized resellers of molded-case circuit breakers have been found Different types of circuit breakers including oil circuit breaker brands can be found by visiting an electrical equipment company like https://www.relectric.com. How Many Circuit Breakers? The circuit breaker panel in your home contains separate circuits for various areas in your home. Each circuit can handle a certain power load.

(PDF) Types of Circuit Breaker and its Application in. For iC60 circuit breakers and iID residual current circuit breakers Residual current devices iDPN Vigi 42 Electrical auxiliaries 44 For iC60, iID, iSW-NA, RCA and ARA Accessories 48 For iC60, iID, iSW-NA, Reflex iC60, RCA and ARA iK60N circuit breakers 52 (curve C) iID K residual current circuit breakers 55 Multiclip 80 A splitter block 57, The Merlin Gerin, Multi 9, C60H range of miniature circuit breakers are suitable for interrupting fault currents up to 10kA ,415V. This model is suitable for protection of circuits against overload and short circuits in general commercial and industrial di....

13 Miniature and residual circuit breakers

types a b c of circuit breakers pdf

13 Miniature and residual circuit breakers. 4/3/2017 · Here’s a common scenario: You need to buy a replacement or additional circuit breaker for your panel. As soon as you start shopping around, however, you become aware that there are thousands and thousands of types of breakers from which to choose., LS Miniature Circuit Breakers and RCDs / RCBOs Product Description & Specifications: Features of the range include - • From 1 to 125A, the LS range of miniature circuit breakers cover most applications • In 6 and 10kA or C & D curve starting • In 18 and 27mm width • RCD units in 2 and 4 pole 40 and 63A and RCBO units from 6 to 32A in 4.5kA.

Molded-Case Circuit Breakers Eaton

types a b c of circuit breakers pdf

3AH5 Vacuum Circuit-Breakers Siemens. MIT International Journal of Electrical and Instrumentation Engineering, Vol. 2, No. 2, Aug. 2012, pp. (106-111) 109 (b) Self Generated Pressure Oil Circuit Breaker In these type of C.B… LS Miniature Circuit Breakers and RCDs / RCBOs Product Description & Specifications: Features of the range include - • From 1 to 125A, the LS range of miniature circuit breakers cover most applications • In 6 and 10kA or C & D curve starting • In 18 and 27mm width • RCD units in 2 and 4 pole 40 and 63A and RCBO units from 6 to 32A in 4.5kA.

types a b c of circuit breakers pdf

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  • An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting 11/2/2017 · Other Relevant articles for Electric Circuit Breakers and their Types. What are Miniature Circuit Breakers (MCB) Understanding Circuit Breaker Specifications; Types of Circuit Breakers and their Applications; What does Miniature Circuit Breakers (MCB) mean and when looking at the types, B, C, and D, what should I know? Example Product. Type B

    Article (PDF Available) The oil circuit breaker has two types which are b ulk oil . To the optimization design of molded case circuit breakers (MCCBs), it is necessary and important to The Merlin Gerin, Multi 9, C60H range of miniature circuit breakers are suitable for interrupting fault currents up to 10kA ,415V. This model is suitable for protection of circuits against overload and short circuits in general commercial and industrial di...

    1-8 EATON CORPORATION Cutler-Hammer Retail Solutions Book — 1-877-932-9322 — Circuit Breakers — Effective August 2005 Circuit Breakers Accessories TABLE 1-13. FIELD INSTALLATION KITS AND PARTS Handle Ties: Typically used to join two similar independent single-pole breakers to form a 2-pole noncommon trip breaker. An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting

    6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ... Loadcenters & Circuit Breakers 3 Type BR Loadcenters & Circuit Breakers Loadcenter Catalog Numbering System Table 3-68. Single- and Three-Phase Through 225 Amperes Catalog Numbering System Type DK main circuit breaker is rated 65 kAIC at 240 Vac and allows a 22 kAIC series rating on the panel when Types BR, BD and BJ branch circuit breakers

    5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with 6 Circuit Breakers for Naval Shipboard Use PG01218003E—January 2010 www.eaton.com Types ALB-1 and NLB-1 Circuit Breakers for Naval Shipboard Use — Types ALB-1 and NLB-1 Breakers 125 Volts ac and dc, 50 Amperes Maximum, 5000 Amperes I.C. ALB-1 Navy Circuit Breaker Note: Clamp type stab terminal for panelboard mounting at line end

    An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting for molded-case circuit breakers, the only way for third-party breaker refurbishers to get parts for the breakers that they are rebuilding is to cannibalize other used breakers or to use counterfeit components. Neither is a very good option for the end user In some cases, unauthorized resellers of molded-case circuit breakers have been found

    B residual current circuit breakers The new edition of IEC/EN 62423 further enriches the set of residual cur - rent waveforms with which the Type B circuit breakers must be tested. The vast number of waveforms contem-plated - which include various unidi-rectional forms, direct current without ripple, high-frequency currents and dif - 5SP3 Main Miniature Circuit Breakers The Perfect Solution for the Meter Panel or as Group Switch for Improved Selectivity Voltage-independent, selective main miniature circuit breaker (MMCB) in accordance with DIN VDE 0641-21, suitable for use in the pre-metering section or in system protection for improved selective device behavior with

    Product Description Ordering Key GMB63 H 1P C 20 R Competitive line of UL 489 miniature circuit breakers for 240VAC and 480Y/277VAC application where supple-mentary or branch circuit protection is required. GMB circuit breakers are available in 1, 2 and 3 pole … 4/3/2017 · Here’s a common scenario: You need to buy a replacement or additional circuit breaker for your panel. As soon as you start shopping around, however, you become aware that there are thousands and thousands of types of breakers from which to choose.

    For iC60 circuit breakers and iID residual current circuit breakers Residual current devices iDPN Vigi 42 Electrical auxiliaries 44 For iC60, iID, iSW-NA, RCA and ARA Accessories 48 For iC60, iID, iSW-NA, Reflex iC60, RCA and ARA iK60N circuit breakers 52 (curve C) iID K residual current circuit breakers 55 Multiclip 80 A splitter block 57 An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Without a circuit breaker, there is a high risk of electrical fires, electrocution and electrical shocks. There are different types of circuit breakers which are based on voltage, installation location, external design and interrupting

    NOTE: For UL Listed circuit breakers, the clusters are mounted on the circuit breaker; for IEC Rated circuit breakers, the clusters are mounted on the cradle. A. Overcurrent Trip Switch (SDE1) B. Circuit Breaker Communication Module C. Overcurrent Trip Switch (SDE2) or … 6/21/2017 · Before answering your question let me share some of the basic things about the circuit breakers: * A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typ...

    The Merlin Gerin, Multi 9, C60H range of miniature circuit breakers are suitable for interrupting fault currents up to 10kA ,415V. This model is suitable for protection of circuits against overload and short circuits in general commercial and industrial di... MINIATURE CIRCUIT BREAKERS UP TO 63A • 1P, 1P+N, 2P, 3P and 4P versions • IEC rated current In: 1…63A • IEC short-circuit breaking capacity Icn: 10kA (6kA for 1P+N) • Trip characteristic curve: Type B, C, D • UL 1077 or UL 489 certified versions. Page 13-2 Page 13-10 MINIATURE CIRCUIT BREAKERS 80…125A • 1P, 2P, 3P and 4P versions

    illustrate our range of circuit breakers according to the nominal current of the load and short-circuit current at the point of installation. b Circuit breaker rating. b Breaking capacity of the circuit breaker. 1 pole isolation solution (1P) Breaking capacity (kA) Icu IEC 60947-2 Maximum rating (A) y 10 y 15 y 20 y 25 y 36 y 63 y 80 y 125 u circuit breakers have pressure plate terminals suitable for single-wire terminations. These circuit breakers are suitable for use with 60°C or 75°C conductors. The QO 35–200 A and all QO-PL and QOT tandem circuit breakers have box-type lugs suitable for single-wire terminations. These circuit breakers are suitable for use with 75°C conductors.