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Circuit Breaker

Model / MPN: ET74405ETN2730 | NSN: 5925-00-938-3446
ITAR Registered seal

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating elemen (s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified) ; and controller.

Product Details
NATO Stock Number
5925-00-938-3446
Sold in multiples of
1 EA
DEMIL
NO
Body Style
Multipole-single actuator type
Body Length
6.500 inches
Body Width
4.125 inches
Body Height
4.344 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Width
1.375 inches
Switch Contact Arrangement
Single pole, double throw
Boss Height
0.188 inches
Pole Quantity
3
Mounting Facility Type And Quantity
6 clip
Storage Type
General purpose warehouse
Features Provided
Adjustable trip release
Maximum Continuous Load Current Rating Per Pole
100.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
500.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
15000.0 ac all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Thermal-magnetic all locations
Trip Release Characteristic
Instantaneous all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
135.0 all locations
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 toggle
Actuator Function
Trip-reset
Actuator Position Designation
At pole two
Auxiliary Switch Function And Quantity
1 alarm
Adjustable Trip Setting Current Range Per Pole In Amps
+500.0/+1400.0 ac all locations
Trip Release Ambient Tempurature Rating
50.0 degrees celsius all locations
Frequency In Hertz
60.0 all locations or 400.0 all locations
Terminal Type And Quantity
6 compression
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M517TP972 Circuit Breaker 17 EA 07/24/2017
SPE7M517TP354 Circuit Breaker 16 EA 07/17/2017
SPE7M517TV562 Circuit Breaker 17 EA 09/18/2017
SPE7M518T132Y Circuit Breaker 22 EA 02/26/2018
SPE7M518T232U Circuit Breaker 26 EA 03/22/2018
SPE7M518T513S Circuit Breaker 33 EA 05/24/2018
SPE7M519T656B Circuit Breaker 14 EA 07/22/2019
SPE7M519T767P Circuit Breaker 6 EA 08/26/2019
SPE7M520T1551 Circuit Breaker 13 EA 10/31/2019
SPE7M520T089U Circuit Breaker 17 EA 04/20/2020

Pricing and Availability

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ET74405ETN2730 Cross Reference
  • 458D09G15/4976D65G06
  • 2892581-1
  • 5682D24G17
  • 5682D24G17
  • ET74405
  • ETN2754ANDETN2730
  • ET74405ETN2730
  • ETN275400S01
  • 458D509G15/4976D65G06