371D957G15

View detailed technical data, stock status, and sourcing information for: 371D957G15
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-01-275-1953

Item Name Code

00136

Assigment Date

03/18/1988 (38 years ago)

"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 element(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."

moderately rugged fragility factor, 12.445 inches nominal overall length, rectangular dimensional envelope body style, 4.313 inches nominal overall height, 5.490 inches nominal overall width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: rectangular dimensional envelope
Overall Length: 12.445 inches nominal
Overall Height: 4.313 inches nominal
Overall Width: 5.490 inches nominal
Fragility Factor: moderately rugged
Pole Quantity: 3
Arc Quenching Method: air
Mounting Facility Type And Quantity: 6 unthreaded hole
Storage Type: general purpose warehouse
Features Provided: adjustable trip release
Maximum Continuous Load Current Rating Per Pole: 125.0 amperes ac and 125.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts: 600.0 ac and 250.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 25000.0 ac and 10000.0 dc 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: 125.0 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 one
Adjustable Trip Setting Current Range Per Pole In Amps: +625.0 to 1250.0 ac and +625.0 to 1250.0 dc all locations
Inclosure Protection Type For Which Designed: dustproof
Trip Release Ambient Temp Rating: 40.0 celsius nominal all locations
Frequency In Hertz: 50.0 or 60.0 all locations
Material: plastic case
Terminal Type And Quantity: 6 compression

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5925-00-888-4255	No Name Available	11/01/2007

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
371D957G15	Circuit Breaker
456D988G15	Circuit Breaker
JA3125	Circuit Breaker
KDB3125	Circuit Breaker

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5925-01-275-1953?

The FSCG of the NSN 5925-01-275-1953 is 5925

Does the NSN 5925-01-275-1953 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-01-275-1953 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5925-01-275-1953 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-01-275-1953 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5925-01-275-1953 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Mar 18, 1988