990C910H01

View detailed technical data, stock status, and sourcing information for: 990C910H01
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-450-5189

Item Name Code

00136

Assigment Date

12/17/1969 (56 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."

+0.1177 to 0.1214 inches thread pitch diameters, single pole type body style, 0.740 inches minimum and 0.760 inches maximum body width, 1.928 inches minimum and 1.948 inches maximum center to center distance between terminals parallel to length, 2.490 inches minimum and 2.510 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.

Thread Pitch Diameters: +0.1177 to 0.1214 inches
Body Style: single pole type
Body Length: 2.490 inches minimum and 2.510 inches maximum
Body Width: 0.740 inches minimum and 0.760 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 1.928 inches minimum and 1.948 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 2.052 inches minimum and 2.072 inches maximum
Fragility Factor: moderately rugged
Boss Height: 0.130 inches minimum and 0.150 inches maximum
Mounting Surface To Terminal End Distance: 2.611 inches nominal
Pole Quantity: 1
Arc Quenching Method: magnetic blowout
Mounting Facility Type And Quantity: 2 threaded hole
Storage Type: general purpose warehouse
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 50.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts: 28.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 3000.0 dc single location
Circuit Protection Type: overcurrent single location
Trip Release Method: magnetic-hydraulic single location
Trip Release Characteristic: instantaneous single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 120.0 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
Inclosure Protection Type For Which Designed: fungus proof and humidity resistant and moisture proof and shock resistant and vibration resistant
Unpackaged Unit Weight: 4.250 ounces nominal
Material: plastic case
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
5925-01-222-1630	No Name Available	09/01/1990

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
70-311-1MG6	Circuit Breaker
990C910	Circuit Breaker
990C910H01	Circuit Breaker
AM-12-311-1MG6	Circuit Breaker
APL1-1177-1	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-450-5189?

The FSCG of the NSN 5925-00-450-5189 is 5925

Does the NSN 5925-00-450-5189 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-450-5189 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 5925-00-450-5189 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-00-450-5189 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 5925-00-450-5189 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Dec 17, 1969