#ETN8251 Circuit Breaker Tripping Unit 4.844 inches overall width

ETN8251

Circuit Breaker Tripper

NSN 5925-00-071-7689

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
000717689
Description

Rectangular dimensional envelope body style, 8.469 inches overall length, 3.109 inches overall height, 4.844 inches overall width.

Technical Specifications of NSN

Body Style:
Rectangular dimensional envelope
Overall Length:
8.469 inches
Overall Height:
3.109 inches
Overall Width:
4.844 inches
Fragility Factor:
Moderately rugged
Pole Quantity:
3
Arc Quenching Method:
Magnetic blowout
Mounting Facility Type And Quantity:
6 terminal
Storage Type:
General purpose warehouse
Features Provided:
Adjustable trip release
Maximum Continuous Load Current Rating Per Pole:
400.0 amperes ac all locations and 400.0 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
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent:
125.0 all locations
Manual Actuator Type And Quantity:
1 toggle
Actuator Function:
Trip-reset
Actuator Position Designation:
At pole two
Adjustable Trip Setting Current Range Per Pole In Amps:
+3200.0/+5600.0 ac all locations and +3200.0/+5600.0 dc all locations
Adjustable Trip Setting Current Range Per Pole In Amps:
+3200.0/+5600.0 ac and +3200.0 to 5600.0 dc all locations
Trip Release Ambient Tempurature Rating:
50.0 degrees celsius all locations
Frequency In Hertz:
60.0 all locations
Unpackaged Unit Weight:
4.100 pounds
Terminal Type And Quantity:
6 threaded stud
NSN:
5925-00-071-7689
Item Name:
Circuit Breaker Tripping Unit
Cage Code:
30086

Other Related Parts

No other part numbers with same form, fit, and function found.

  We Guarantee with Every Order

  •   100% Genuine Manufacturers Parts
  •   Every Product thoroughly Inspected
  •   Sales Record Retention of 7 years
  •   Fast Delivery
  •   HAZMAT Certified
  •   Global Shipping

Pricing & Availability

Submit this form for current pricing and availability quote on part number etn8251 and/or cross reference parts.
Part / NSN:
Qty:
Your Email:
Phone:
Ref. / PO #:
Company:

We do not share or sell your information to anyone.
Privacy | Terms

Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breaker Trippers
------------ P/N ETN8251

New Products Recently updated in circuit breakers

  • 27-10388-1 circuit breaker
    NSN 5925-00-166-3440

    Multipole-single actuator type body style, 0.250 inches bushing length, 1.312 inches body length, 2.140 inches body width, 2.156 inches body height

  • 1536-007-10 circuit breaker
    NSN 5925-00-166-3440

    Multipole-single actuator type body style, 0.250 inches bushing length, 1.312 inches body length, 2.140 inches body width, 2.156 inches body height

  • 314C920G21 circuit breaker
    NSN 5925-00-165-8693

    3 pole quantity, 150.0 amperes ac all locations maximum continuous load current rating per pole, 600.0 ac all locations operating voltage type and rating per pole in volts

  • KA3150 circuit breaker
    NSN 5925-00-165-8693

    3 pole quantity, 150.0 amperes ac all locations maximum continuous load current rating per pole, 600.0 ac all locations operating voltage type and rating per pole in volts

  • 504C336G21 circuit breaker
    NSN 5925-00-165-8693

    3 pole quantity, 150.0 amperes ac all locations maximum continuous load current rating per pole, 600.0 ac all locations operating voltage type and rating per pole in volts

  • BAB1015 circuit breaker
    NSN 5925-00-165-8694

    1 pole quantity, 15.0 amperes ac single location maximum continuous load current rating per pole, 240.0 ac single location operating voltage type and rating per pole in volts


Best-Selling Products A collection of our most popular products

Last Updated: 08/12/2025