Product Features
Circuit breaker has three pole, single throw, normally closed switch contact arrangement
Technical Specifications of NSN
Bushing Length:
Between 0.332 inches and 0.380 inches
Body Length:
1.562 inches
Center To Center Distance Between Terminals Parallel To Length:
0.906 inches
Center To Center Distance Between Terminals Parallel To Width:
0.625 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length:
Between 1.344 inches and 1.404 inches
End Application:
Weapon launch consol assembly for los angeles class submarine 688
Mounting Surface To Terminal End Distance:
1.950 inches
Mounting Facility Type And Quantity:
1 threaded bushing w/panel seal
Thready Qty Per Inch (tpi):
32
Maximum Continuous Load Current Rating Per Pole:
20.0 amperes ac 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:
800.0 all locations
Main Contact Tripping Mechanism Type:
Trip free
Manual Actuator Type And Quantity:
1 toggle
Actuator Function:
Trip-reset
Actuator Position Designation:
At pole two
External Actuator Linkage Arrangement:
One, two, and three linked
Auxiliary Switch Function And Quantity:
1 alarm
Internal Trip Release Configuration:
Series trip all locations
Thread Size:
0.375 inches
Switch Location And Position Designation:
Internal at pole three
Trip Delay Time In Seconds Per Rated Continuous Current:
0.055 at 200 pct all locations and 0.950 at 200 pct all locations and 0.240 at 400 pct all locations and 0.060 at 800 pct all locations
Inclosure Protection Type For Which Designed:
Corrosion resistant and fungus resistant and hermetically sealed
Trip Release Ambient Tempurature Rating:
23.0 degrees celsius all locations and 27.0 degrees celsius all locations
Frequency In Hertz:
60.0 all locations or 400.0 all locations
Test Data Document:
81349-mil-c-39019 specification 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:
6 screw
Specification Data:
81349-mil-c-39019/6 government specification
Item Name:
Overload Switch
Other Related Parts
Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
