Screw Circuit Breaker 304

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Part RoHS Manufacturer Circuit Protection Type Mounting Feature Rated AC Voltage Rated DC Voltage Rated Current Terminal Shape Minimum Operating Temperature Terminal Finish Rated Breaking Capacity Manufacturer Series Trip Time/Delay Additional Features Actuator Type Packing Method Body Length/Diameter Body Width Environmental Characteristics JESD-609 Code Dimensions Circuit Function Body Height Reference Standard No. of Poles Maximum Operating Temperature Blow Characteristic

MS3320-10

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

10 A

Screw

-55 °C (-67 °F)

2.5 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

CM-3

Sensata Technologies

Thermal Circuit Breaker

Panel Mount

120 V

30 V

3 A

Screw

Manual Reset

2 in (50.8 mm)

1.221 in (31.01 mm)

Corrosion Resistant

Trip Free

1.145 in (29.08 mm)

UL

2TC2-10

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

10 A

Screw

2.5 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

PKZM0-1,6

Eaton Corporation

Thermal Magnetic Circuit Breaker

DIN Rail Mount

690 V

1.6 A

Screw

-25 °C (-13 °F)

150 kA

Turn Button

3.661 in (93 mm)

1.772 in (45 mm)

Corrosion Resistant; IP00; IP20

Trip

2.992 in (76 mm)

CE; CSA; EN; IEC; UL

3

55 °C (131 °F)

MS3320-15

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

15 A

Screw

-55 °C (-67 °F)

2.5 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

MS3320-3

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

3 A

Screw

-55 °C (-67 °F)

2.5 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

2TC2-15

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

15 A

Screw

2.5 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

222413

Eaton Corporation

Thermal Magnetic Circuit Breaker

DIN Rail Mount

690 V

65 A

Screw

-25 °C (-13 °F)

50 kA

Turn Button

5.512 in (140 mm)

2.165 in (55 mm)

Corrosion Resistant; IP00; IP20

Trip

6.299 in (160 mm)

CE; CSA; EN; IEC; UL

3

55 °C (131 °F)

MS3320-5

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

5 A

Screw

-55 °C (-67 °F)

2.5 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

PKZM0-1

Eaton Corporation

Panel Mount

690 V

250 V

1 A

Screw

-25 °C (-13 °F)

150 A

Environmental Characteristics: IP20

Manual On/Off

1.772 in (45 mm)

3.661 in (93 mm)

Corrosion Resistant

Manual On/Off

3.15 in (80 mm)

CE; CSA; EN; IEC; UL

3

55 °C (131 °F)

Short

2CDS252001R0105

Abb

Thermal Magnetic Circuit Breaker

DIN Rail Mount

480 V

125 V

10 A

Screw

-25 °C (-13 °F)

6 kA

IP40 in enclosure with cover

Toggle Handle

Bulk

3.465 in (88 mm)

1.378 in (35 mm)

IP20

Trip

2.717 in (69 mm)

CSA, EN/IEC, UL

2

55 °C (131 °F)

W31-X2M1G-5

TE Connectivity

Thermal Circuit Breaker

Panel Mount

240 V

50 V

5 A

Screw

1 kA

6 s

Toggle

1.384 in (35.15 mm)

0.69 in (17.53 mm)

Corrosion/Environment/Moisture Resistant

Series Trip

1.6 in (40.64 mm)

CSA; UL

1

CA1-B0-54-430-5B1-BA

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

125 V

3 A

Screw

-40 °C (-40 °F)

Handle

2.5 in (63.5 mm)

0.755 in (19.18 mm)

Corrosion/Moisture Resistant

Series Trip

1.85 in (47 mm)

1

85 °C (185 °F)

2TC2-5

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

5 A

Screw

2.5 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

MS132-10T

Abb

Thermal Circuit Breaker

DIN Rail Mount

690 V

10 A

Screw

-25 °C (-13 °F)

18 kA

Rotary Handle

Bulk

3.85 in (97.8 mm)

1.772 in (45 mm)

IP10; IP20

Trip Free

3.388 in (86.05 mm)

EN; IEC

3

70 °C (158 °F)

W23-X1A1G-50

TE Connectivity

Thermal Circuit Breaker

Panel Mount

240 V

50 V

50 A

Screw

1 kA

6 s

Push-Pull

1.384 in (35.15 mm)

0.69 in (17.53 mm)

Corrosion/Environment/Moisture Resistant

Series Trip

1.6 in (40.64 mm)

CSA; UL

1

MS3320-15V

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

15 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

2TC2-21/2

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

2.5 A

Screw

2.8 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

W31-X2M1G-10

TE Connectivity

Thermal Circuit Breaker

Panel Mount

240 V

50 V

10 A

Screw

1 kA

6 s

Toggle

1.384 in (35.15 mm)

0.69 in (17.53 mm)

Corrosion/Environment/Moisture Resistant

Series Trip

1.6 in (40.64 mm)

CSA; UL

1

236404

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

400 V

40 A

Screw

-25 °C (-13 °F)

10 kA

IP20

Trip

3

75 °C (167 °F)

185120F-011

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

30 V

120 A

Screw

-32 °C (-25.6 °F)

Lever

2.89 in (73.41 mm)

1.9 in (48.26 mm)

Trip

1.44 in (36.58 mm)

SAE; UL

1

82 °C (179.6 °F)

2TC2-3

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

3 A

Screw

2.5 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

MS3320-1

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

1 A

Screw

-55 °C (-67 °F)

3.5 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

MS3320-20

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

20 A

Screw

-55 °C (-67 °F)

2 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

3VA2340-5HL32-0AA0

Siemens

Thermal Circuit Breaker

Panel Mount

690 V

400 A

Screw

-25 °C (-13 °F)

55 kA

Toggle

9.8 in (248.92 mm)

5.4 in (137.16 mm)

IP40

9.8 x 5.4 x 4.3 in (248.92 x 137.16 x 109.22 mm)

Trip

4.3 in (109.22 mm)

3

70 °C (158 °F)

2TC2-20

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

20 A

Screw

2 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

W23-X1A1G-5

TE Connectivity

Thermal Circuit Breaker

Panel Mount

240 V

50 V

5 A

Screw

1 kA

6 s

Push-Pull

1.384 in (35.15 mm)

0.69 in (17.53 mm)

Corrosion/Environment/Moisture Resistant

Series Trip

1.6 in (40.64 mm)

CSA; UL

1

MS3320-10L

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

10 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

MS3320-7-1/2

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

7.5 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

MS3320-2

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount

120 V

28 V

2 A

Screw

-55 °C (-67 °F)

2.8 kA

Rated breaking capacity at 28 VDC: 6000 A

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

121 °C (249.8 °F)

2TC2-2

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

2 A

Screw

2.8 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

BA1-B0-14-450-225-C

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

80 V

5 A

Screw

-40 °C (-40 °F)

7.5 kA

Handle

2 in (50.8 mm)

0.755 in (19.18 mm)

Corrosion/Moisture Resistant

Series Trip

1.73 in (43.94 mm)

CSA; UL

1

85 °C (185 °F)

W31-X2M1G-15

TE Connectivity

Thermal Circuit Breaker

Panel Mount

240 V

50 V

15 A

Screw

1 kA

6 s

Toggle

1.384 in (35.15 mm)

0.69 in (17.53 mm)

Corrosion/Environment/Moisture Resistant

Series Trip

1.6 in (40.64 mm)

CSA; UL

1

MS3320-20V

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

20 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

BB3-B0-46-618-211-D

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

250 V

18 A

Screw

-40 °C (-40 °F)

3 kA

Handle

2.265 in (57.53 mm)

2 in (50.8 mm)

Corrosion/Moisture Resistant

Series Trip

1.73 in (43.94 mm)

CSA; UL; VDE

3

85 °C (185 °F)

MS25244-10

Sensata Technologies

Thermal Circuit Breaker

Panel Mount

120 V

30 V

10 A

Screw

3.5 kA

1 s

Rated breaking capacity at 30 VDC: 6000 A

Push-Pull

1.094 in (27.79 mm)

0.75 in (19.05 mm)

Corrosion/Moisture Resistant

1.094 x 0.75 x 1.49 in (27.79 x 19.05 x 37.85 mm)

Trip Free

1.49 in (37.85 mm)

1

2TC2-1

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

1 A

Screw

3.5 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

AA1-B0-34-615-3B1-C

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

277 V

80 V

15 A

Screw

-40 °C (-40 °F)

5 kA

Standards: MIL-PRF-55629, MIL-STD-202

Handle

2 in (50.8 mm)

0.755 in (19.18 mm)

Corrosion/Moisture Resistant

Series Trip

1.64 in (41.66 mm)

CSA; UL

1

85 °C (185 °F)

MS14154-7-1/2

Sensata Technologies

Thermal Circuit Breaker

Panel Mount-Threaded

120 V

7.5 A

Screw

2 kA

Push-Pull

1.84 in (46.74 mm)

0.781 in (19.84 mm)

Corrosion Resistant

1.84 x 0.781 x 1.381 in (46.74 x 19.84 x 35.08 mm)

Trip Free

1.381 in (35.08 mm)

1

AA1-B0-34-625-3B1-C

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

277 V

80 V

25 A

Screw

-40 °C (-40 °F)

5 kA

Toggle

2 in (50.8 mm)

0.755 in (19.18 mm)

Corrosion/Moisture Resistant

Series Trip

1.64 in (41.66 mm)

CSA; UL

1

85 °C (185 °F)

MS14154-10

Defense Logistics Agency

Thermal Circuit Breaker

Panel Mount-Threaded

10 A

Screw

-55 °C (-67 °F)

Push-Pull

1.84 in (46.74 mm)

0.781 in (19.84 mm)

1.84 x 0.781 x 1.381 in (46.74 x 19.84 x 35.08 mm)

Trip Free

1.381 in (35.08 mm)

MIL-C-5809

3

71 °C (159.8 °F)

2TC2-25

Texas Instruments

Thermal Circuit Breaker

Panel Mount

120 V

28 V

25 A

Screw

1.8 kA

2TC2

Push-Pull

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

1.03 in (26.16 mm)

AA1-B0-34-620-3B1-C

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

277 V

80 V

20 A

Screw

-40 °C (-40 °F)

5 kA

Standards: MIL-PRF-55629, MIL-STD-202

Handle

2 in (50.8 mm)

0.755 in (19.18 mm)

Corrosion/Moisture Resistant

Series Trip

1.64 in (41.66 mm)

CSA; UL

1

85 °C (185 °F)

MS3320-5L

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

5 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

MS3320-5V

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

5 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

184135F-011

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

30 V

135 A

Screw

-32 °C (-25.6 °F)

Lever

2.89 in (73.41 mm)

1.9 in (48.26 mm)

Trip

1.44 in (36.58 mm)

SAE; UL

1

82 °C (179.6 °F)

MS3320-2-1/2

Eaton Corporation

Thermal Circuit Breaker

Panel Mount

120 V

28 V

2.5 A

Screw

-55 °C (-67 °F)

3.5 kA

Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A

Push Button

0.781 in (19.84 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)

Trip

1.03 in (26.16 mm)

1

121 °C (249.8 °F)

MS3320-21/2

Sensata Technologies

Thermal Circuit Breaker

Panel Mount-Threaded

120 V

2.5 A

Screw

2.8 kA

Push-Pull

0.719 in (18.26 mm)

0.593 in (15.06 mm)

Corrosion Resistant; Moisture Resistant

0.719 x 0.593 x 1.03 in (18.26 x 15.06 x 26.16 mm)

Trip Free

1.03 in (26.16 mm)

MIL-C-5809

1

Circuit Breaker

A circuit breaker is an automatic electrical switch that is designed to protect an electrical circuit from damage caused by overcurrent or short circuits. Circuit breakers are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.

Circuit breakers work by monitoring the amount of current flowing through an electrical circuit. If the current exceeds a preset level, the circuit breaker will trip, or open the circuit, to prevent damage to the electrical system. When the circuit breaker trips, it interrupts the flow of current, which stops the electrical current from flowing and prevents further damage.

Circuit breakers are available in a variety of types and sizes, and they can be classified based on their voltage rating, current rating, and interrupting capacity. Some common types of circuit breakers include thermal circuit breakers, magnetic circuit breakers, and hybrid circuit breakers.

In addition to protecting electrical systems from overcurrent and short circuits, circuit breakers also help improve the reliability and efficiency of electrical systems. They can also be used to switch electrical circuits on and off, which can be helpful in certain applications.