TFKST12

View detailed technical data, stock status, and sourcing information for: TFKST12
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-01-121-8053

Item Name Code

04558

Assigment Date

11/10/1981 (44 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.

0.257 inches nominal mounting slot width, 2.000 inches nominal overall width, 2.000 inches nominal overall length, rectangular dimensional envelope body style, 4.000 inches nominal overall height

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: 2.000 inches nominal
Overall Height: 4.000 inches nominal
Overall Width: 2.000 inches nominal
Mounting Slot Width: 0.257 inches nominal
End Item Identification: circuit breaker; g.e. part number tfk236; onboard 270 ft wmec coast guard vessels
Pole Quantity: 3
Mounting Facility Type And Quantity: 1 slot
Maximum Continuous Load Current Rating Per Pole: 4.5 amperes ac single location
Operating Voltage Type And Rating Per Pole In Volts: 240.0 ac single location
Circuit Protection Type: overcurrent single location
Trip Release Method: magnetic single location
Auxiliary Trip Coil Voltage Type And Rating In Volts: 240.0 ac nominal single location
Trip Release Characteristic: instantaneous single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 115.0 single location
Internal Trip Release Configuration: series trip w/remote trip feature single location
Trip Release Duty Cycle: intermittent single location
Frequency In Hertz: 60.0 single location
Terminal Type And Quantity: 2 wire lead

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
TFKST12	Circuit Breaker Tripper

FAQs

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

What is the FSCG of the NSN 5925-01-121-8053?

The FSCG of the NSN 5925-01-121-8053 is 5925

Does the NSN 5925-01-121-8053 have a Schedule B code assigned?

Yes, the Schedule B code is 8538907020

Does NSN 5925-01-121-8053 require demilitarization?

Usml items - mutilation to the point of scrap required worldwide. (note 7).

Does NSN 5925-01-121-8053 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-01-121-8053 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 5925-01-121-8053 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Tue, Nov 10, 1981