NSN 5925-00-257-9108
Circuit Breaker Tripping Element
About this product
Rectangular dimensional envelope body style, 3 poles, 250.0 amperes ac all locations and 250.0 amperes dc all locations maximum continuous load current rating per pole, operating voltage type and rating per pole in volts: 500.0 ac all locations and 250.0 dc all locations.
Manufacturer part number ETN5981 for national stock number 5925002579108.
Datasheet
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Product description
Circuit Breaker Tripper NSN 5925-00-257-9108.
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MPN or Model
ETN5981
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Schedule B
8538.90.7020 (Automatic circuit breaker parts for headings 8535, 8536 or 8537) -
NMF (National Motor Freight)
061300 - Circuit Breaker/switch NOI -
Unit Weight (Est.)
5 lb -
Body Style
Rectangular dimensional envelope -
Overall Length
8.438 inches -
Overall Height
4.250 inches -
Overall Width
4.625 inches -
Pole Quantity
3 -
Mounting Facility Type And Quantity
6 terminal -
Features Provided
Adjustable trip release -
Maximum Continuous Load Current Rating Per Pole
250.0 amperes ac all locations and 250.0 amperes dc all locations -
Operating Voltage Type And Rating Per Pole In Volts
500.0 ac all locations and 250.0 dc all locations -
Circuit Protection Type
Overcurrent all locations -
Trip Release Method
Thermal-magnetic all locations -
Trip Release Characteristic
Instantaneous all locations and time delay all locations -
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
150.0 all locations -
Manual Actuator Type And Quantity
1 toggle -
Actuator Function
Trip-reset -
Actuator Position Designation
At each pole -
Adjustable Trip Setting Current Range Per Pole In Amps
+1700.0/+3400.0 ac all locations and +1850.0/+3800.0 dc all locations -
Trip Delay Time In Seconds Per Rated Continuous Current
3600.000 at 150 pct all locations -
Trip Release Ambient Tempurature Rating
50.0 degrees celsius all locations -
Frequency In Hertz
60.0 all locations -
Terminal Type And Quantity
6 screw
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Circuit Breaker Tripper
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.
![Mechanic Bill explains Circuit Breaker Tripping Element](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5925-00-257-9108 circuit breaker tripperManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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ETN5981 | Spd Electrical Systems, Inc |
Stock Check
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