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Circuit Breaker

Model / MPN: ETN5947 | NSN: 5925-00-642-0511
ITAR Registered seal

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 elemen (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.

Product Details
NATO Stock Number
5925-00-642-0511
Sold in multiples of
1 EA
DEMIL
NO
Body Style
Multipole-single actuator type
Body Length
11.000 inches
Body Width
9.000 inches
Body Height
4.625 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
9.875 inches
Center To Center Distance Between Terminals Parallel To Width
1.000 inches
Unthreaded Mounting Hole Diameter
0.250 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
9.875 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
1.000 inches
Fragility Factor
Moderately rugged
Boss Height
0.250 inches
Pole Quantity
3
Arc Quenching Method
Air
Mounting Facility Type And Quantity
4 unthreaded hole
Storage Type
General purpose warehouse
Features Provided
Adjustable trip release and interchangeable 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
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
20000.0 ac all locations and 20000.0 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
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
Adjustable Trip Setting Current Range Per Pole In Amps
+650.0/+1300.0 dc all locations
Trip Delay Time In Seconds Per Rated Continuous Current
300.000 at 200 pct all locations and 900.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Shock resistant and vibration resistant
Trip Release Ambient Tempurature Rating
50.0 degrees celsius all locations
Frequency In Hertz
60.0 all locations
Precious Material And Location
Contacts silver
Precious Material
Silver
Terminal Type And Quantity
6 threaded stud and 6 tab w/screw
ETN59 Series Parts

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ETN5947 Cross Reference