5925-00-203-1278

Find complete technical information, availability, and procurement data for: 5925-00-203-1278
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-203-1278

Item Name Code

00136

Assigment Date

01/01/1961 (65 years ago)

multipole-single actuator type body style, 2.063 inches nominal body width, 1.875 inches maximum body height, 0.250 inches nominal bushing length, 1.300 inches maximum body length

Product Characteristics

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

Body Style: multipole-single actuator type
Bushing Length: 0.250 inches nominal
Body Length: 1.300 inches maximum
Body Width: 2.063 inches nominal
Body Height: 1.875 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 0.750 inches nominal
Center To Center Distance Between Terminals Parallel To Width: 0.688 inches nominal
Pole Quantity: 3
Mounting Facility Type And Quantity: 1 threaded bushing
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 10.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts: 208.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 350.0 ac all locations
Circuit Protection Type: overcurrent all locations
Trip Release Method: thermal all locations
Trip Release Characteristic: time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 138.0 all locations
Reset Method: manual
Main Contact Tripping Mechanism Type: trip free
Manual Actuator Type And Quantity: 1 push-pull
Actuator Function: trip-reset
Actuator Position Designation: at pole two
Internal Trip Release Configuration: series trip all locations
Nominal Thread Size: 0.469 inches
Trip Delay Time In Seconds Per Rated Continuous Current: 3.600 minimum at 200 pct and 6.400 maximum at 200 pct all locations
Trip Release Ambient Temp Rating: 25.0 celsius nominal all locations
Frequency In Hertz: 60.0 all locations
Material: plastic case
Thread Series Designator: uns
Terminal Type And Quantity: 6 threaded stud

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5925-00-134-9995	No Name Available	12/24/1972

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
1526-009-10	Circuit Breaker
GC885C10	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-203-1278?

The FSCG of the NSN 5925-00-203-1278 is 5925

Does the NSN 5925-00-203-1278 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-203-1278 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 5925-00-203-1278 contain precious materials?

Precious metal content is unknown

Does NSN 5925-00-203-1278 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 5925-00-203-1278 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961