555261-059

View detailed technical data, stock status, and sourcing information for: 555261-059
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-812-4522

Item Name Code

00136

Assigment Date

01/01/1962 (64 years ago)

single pole type body style, 0.740 inches minimum and 0.760 inches maximum body width, 2.050 inches minimum and 2.070 inches maximum distance between centerlines of mounting facilities parallel to body length, 2.500 inches minimum and 2.530 inches maximum body length, 1.930 inches minimum and 1.950 inches maximum center to center distance between terminals parallel to 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: single pole type
Body Length: 2.500 inches minimum and 2.530 inches maximum
Body Width: 0.740 inches minimum and 0.760 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 1.930 inches minimum and 1.950 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 2.050 inches minimum and 2.070 inches maximum
Fragility Factor: moderately rugged
Boss Height: 0.130 inches minimum and 0.150 inches maximum
Mounting Surface To Terminal End Distance: 2.408 inches minimum and 2.552 inches maximum
Pole Quantity: 1
Arc Quenching Method: magnetic blowout
Mounting Facility Type And Quantity: 2 threaded hole
Storage Type: general purpose warehouse
Special Handling Feature: magnetic
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 20.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts: 50.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 2000.0 dc single location
Circuit Protection Type: overcurrent single location
Trip Release Method: magnetic-hydraulic single location
Trip Release Characteristic: time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 125.0 single location
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
Internal Trip Release Configuration: series trip single location
Nominal Thread Size: 0.138 inches
Trip Delay Time In Seconds Per Rated Continuous Current: 2.000 minimum at 200 pct and 10.000 maximum at 200 pct single location
Inclosure Protection Type For Which Designed: fungus resistant and moisture resistant
Unpackaged Unit Weight: 0.280 pounds nominal
Material: plastic case
Precious Material And Location: terminals silver and nuts silver and washers silver
Precious Material: silver
Thread Series Designator: unc
Terminal Type And Quantity: 2 threaded stud

Replaces National Stock Numbers

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

NSN	Name	Date
5925-00-270-5913	No Name Available	12/16/1968
5925-00-755-2360	No Name Available	07/30/1969
5925-00-958-4819	No Name Available	07/30/1969

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
10630082-105	Circuit Breaker
555261-059	Circuit Breaker
76-12A4-20	Circuit Breaker
AM12MG6-20-50VDC4	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-812-4522?

The FSCG of the NSN 5925-00-812-4522 is 5925

Does the NSN 5925-00-812-4522 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-812-4522 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 5925-00-812-4522 contain precious materials?

Item contains silver.

Does NSN 5925-00-812-4522 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 5925-00-812-4522 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962