5925-00-839-0290

Find complete technical information, availability, and procurement data for: 5925-00-839-0290
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-839-0290

Item Name Code

04558

Assigment Date

01/01/1960 (66 years ago)

An electromechanical device which releases the holding mechanism and permits the contacts of a circuit breaker to open. It is a replacement part of a circuit breaker. Does not include relays. See also thermal release, circuit breaker.

7.531 inches nominal overall length, 3.500 inches nominal overall height, 3.688 inches nominal overall width, 0.438 inches nominal unthreaded mounting hole diameter, rectangular dimensional envelope body style

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: 7.531 inches nominal
Overall Height: 3.500 inches nominal
Overall Width: 3.688 inches nominal
Unthreaded Mounting Hole Diameter: 0.438 inches nominal
Pole Quantity: 3
Mounting Facility Type And Quantity: 3 unthreaded hole
Features Provided: adjustable trip release
Maximum Continuous Load Current Rating Per Pole: 150.0 amperes ac and 150.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts: 500.0 ac and 250.0 dc all locations
Circuit Protection Type: overcurrent all locations
Trip Release Method: thermal-magnetic all locations
Trip Release Characteristic: instantaneous and time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 150.0 all locations
Adjustable Trip Setting Current Range Per Pole In Amps: +1950.0 to 3900.0 ac and +2250.0 to 4100.0 dc all locations
Trip Delay Time In Seconds Per Rated Continuous Current: 60.000 minimum at 300 pct and 120.000 maximum at 300 pct all locations
Trip Release Ambient Temp Rating: 50.0 celsius nominal all locations
Frequency In Hertz: 60.0 all locations
Terminal Type And Quantity: 6 bus bar

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
452D371G21	Circuit Breaker Tripper
900J376-452D371G21	Circuit Breaker Tripper

FAQs

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

What is the FSCG of the NSN 5925-00-839-0290?

The FSCG of the NSN 5925-00-839-0290 is 5925

Does the NSN 5925-00-839-0290 have a Schedule B code assigned?

Yes, the Schedule B code is 8538907020

Does NSN 5925-00-839-0290 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 5925-00-839-0290 contain precious materials?

Precious metal content is unknown

Does NSN 5925-00-839-0290 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 5925-00-839-0290 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960