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Circuit Breaker

Model / MPN: 7903702-33 | NSN: 5925-01-018-6843
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
5925-01-018-6843
Sold in multiples of
1 EA
DEMIL
NO
Thread Pitch Diameters
+0.3503/+0.3537 inches
Body Style
Multipole-single actuator type
Bushing Length
Between 0.332 inches and 0.380 inches
Body Length
1.562 inches
Body Width
1.281 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
0.906 inches
Center To Center Distance Between Terminals Parallel To Width
Between 0.594 inches and 0.656 inches
Fragility Factor
Moderately rugged
Mounting Surface To Terminal End Distance
1.828 inches
Pole Quantity
2
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
1 threaded bushing w/panel seal
Storage Type
General purpose warehouse
Special Handling Feature
Magnetic
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
10.0 amperes ac all locations and 10.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
240.0 ac all locations and 50.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
300.0 ac all locations and 500.0 dc all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic all locations
Trip Release Characteristic
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
115.0 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
Between pole one and two
Internal Trip Release Configuration
Series trip all locations
Thread Size
0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current
0.550 at 200 pct all locations and 1.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Fungus resistant and hermetically sealed
Frequency In Hertz
400.0 all locations
Test Data Document
81349-mil-prf-39019 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unef
Terminal Type And Quantity
4 wire hook
Specification Data
81349-mil-prf-39019/3 government specification
7903702 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M518T724Z Circuit Breaker 62 EA 07/13/2018

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7903702-33 Cross Reference
  • AP11-316-30
  • 2181411-30
  • HB2Z1-58
  • HE2B3-10-50DC1
  • SM33-10DC1
  • SM33-10-240-400-1
  • SM33-10-60-1
  • M39019-3-058
  • M39019-3-249
  • M39019/03-249
  • MIL-PRF-39019/3
  • 165574-1
  • 3228424-2
  • 347254-001 ITEM 8
  • 38-0329-158
  • 2291620-7
  • 2291620-7
  • AP12-1-6-2-103
  • M39019/3-54
  • M39019/3-58
  • M39019/3-60
  • MIL-C-39019/3
  • AP12-1-62-103