Airpax M55629/6-110 Circuit Breaker 25A/240V/400HZ NSN:5925-01-112-0650

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Circuit Breaker

NSN: 5925-01-112-0650 | Model: M55629/6-110
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.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Body Style
Multipole-multiple actuator type
Body Length
Between 2.479 inches and 2.510 inches
Body Width
Between 2.205 inches and 2.285 inches
Case Material
Center To Center Distance Between Terminals Parallel To Length
Between 1.660 inches and 1.960 inches
Center To Center Distance Between Terminals Parallel To Width
Between 0.719 inches and 0.781 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 2.046 inches and 2.078 inches
Switch Contact Arrangement
Single pole, double throw
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 0.719 inches and 0.781 inches
Fragility Factor
Moderately rugged
Boss Height
Between 0.109 inches and 0.171 inches
Mounting Surface To Terminal End Distance
Between 2.522 inches and 2.553 inches
Pole Quantity
Mounting Facility Type And Quantity
6 threaded hole
Storage Type
General purpose warehouse
Special Handling Feature
Thready Qty Per Inch (tpi)
Maximum Continuous Load Current Rating Per Pole
25.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
240.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1000.0 ac 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
150.0 all locations
Reset Method
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
3 toggle
Actuator Function
Actuator Position Designation
At each pole
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
0.138 inches
Switch Location And Position Designation
Internal at pole one
Trip Delay Time In Seconds Per Rated Continuous Current
2.100 at 200 pct all locations and 20.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Fungus resistant
Switch Terminal Type
Tab, solder lug
Switch Current Rating And Type In Amps
10.0 ac and 2.0 dc
Switch Voltage Rating And Type In Volts
250.0 ac and 50.0 dc
Frequency In Hertz
400.0 all locations
Test Data Document
81349-mil-c-55629 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
Terminal Type And Quantity
6 threaded stud
Specification Data
81349-mil-c-55629/6 government specification

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