GB3-A3-50-1

View detailed technical data, stock status, and sourcing information for: GB3-A3-50-1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-172-1217

Item Name Code

00136

Assigment Date

08/27/1972 (53 years ago)

5.115 inches minimum and 5.135 inches maximum center to center distance between terminals parallel to length, 4.490 inches minimum and 4.510 inches maximum body width, 5.990 inches minimum and 6.010 inches maximum body length, 1.490 inches minimum and 1.510 inches maximum center to center distance between terminals parallel to width, multipole-single actuator type 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: multipole-single actuator type
Body Length: 5.990 inches minimum and 6.010 inches maximum
Body Width: 4.490 inches minimum and 4.510 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 5.115 inches minimum and 5.135 inches maximum
Center To Center Distance Between Terminals Parallel To Width: 1.490 inches minimum and 1.510 inches maximum
Unthreaded Mounting Hole Diameter: 0.256 inches minimum and 0.276 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 4.583 inches minimum and 4.603 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width: 1.490 inches minimum and 1.510 inches maximum
Fragility Factor: moderately rugged
Boss Height: 0.177 inches minimum and 0.197 inches maximum
Mounting Surface To Terminal End Distance: 4.427 inches minimum and 4.447 inches maximum
Pole Quantity: 3
Arc Quenching Method: magnetic blowout
Mounting Facility Type And Quantity: 4 unthreaded hole
Storage Type: general purpose warehouse
Special Handling Feature: magnetic
Maximum Continuous Load Current Rating Per Pole: 50.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts: 480.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 10000.0 ac all locations
Circuit Protection Type: overcurrent all locations
Trip Release Method: magnetic-hydraulic all locations
Trip Release Characteristic: time delay 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 two
Internal Trip Release Configuration: series trip all locations
Trip Delay Time In Seconds Per Rated Continuous Current: 30.000 minimum at 200 pct and 250.000 maximum at 200 pct all locations
Inclosure Protection Type For Which Designed: fungus resistant and moisture resistant and shock resistant and vibration resistant
Unpackaged Unit Weight: 4.000 pounds nominal
Frequency In Hertz: 60.0 all locations
Material: plastic case
Terminal Type And Quantity: 6 threaded stud

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
GB3-A3-50-1	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-172-1217?

The FSCG of the NSN 5925-00-172-1217 is 5925

Does the NSN 5925-00-172-1217 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-172-1217 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 5925-00-172-1217 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-00-172-1217 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 5925-00-172-1217 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Sun, Aug 27, 1972