Model: SMA-742929-1

Circuit Breaker
Description:

Multipole-multiple actuator type body style, 5.769 inches body length, 2.041 inches body width, plastic case material, 3.516 inches center to center distance between terminals parallel to length.

Special Features:

Communication center, patching necessary to weapons system

Properties:

Body Style
Multipole-multiple actuator type
Body Length
Between 5.769 inches and 5.831 inches
Body Width
Between 2.041 inches and 2.103 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
Between 3.516 inches and 3.578 inches
Center To Center Distance Between Terminals Parallel To Width
Between 1.016 inches and 1.036 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 2.719 inches and 2.781 inches
Switch Contact Arrangement
Single pole, double throw
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 1.016 inches and 1.036 inches
Fragility Factor
Moderately rugged
Boss Height
Between 0.209 inches and 0.229 inches
Mounting Surface To Terminal End Distance
Between 3.172 inches and 3.296 inches
Pole Quantity
2
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
4 threaded hole
Storage Type
General purpose warehouse
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
30.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
125.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
5000.0 dc all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic all locations
Trip Release Characteristic
Instantaneous second location
Trip Release Characteristic
Time delay first location
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
2 toggle
Actuator Function
Trip-reset
Actuator Position Designation
At each pole
External Actuator Linkage Arrangement
One and two linked
Auxiliary Switch Function And Quantity
1 alarm
Internal Trip Release Configuration
Series trip first location
Internal Trip Release Configuration
Relay trip second location
Thread Size
0.138 inches
Switch Location And Position Designation
Internal at pole one
Trip Delay Time In Seconds Per Rated Continuous Current
30.000 at 200 pct first location and 100.000 at 200 pct first location
Inclosure Protection Type For Which Designed
Fungus resistant and moisture resistant and shock resistant and vibration resistant
Switch Terminal Type
Tab, solder lug
Criticality Code Justification
Feat
Switch Current Rating And Type In Amps
5.0 ac
Switch Voltage Rating And Type In Volts
125.0 ac
Thread Series Designator
Unc
Terminal Type And Quantity
6 threaded stud
NSN
5925-00-140-2357
Part Number
SMA-742929-1
Description
Circuit Breaker
CAGE

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 element(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.

Part SMA-742929-1 NSN 5925-00-140-2357

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00136
FIIG:
A030A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.3000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536200040
  • SITC: 77252
  • End Use: Electric apparatus
  • NAICS: 335313
  • USDA: 1

Freight Class: Automatic circuit breakers, for a voltage not exceeding 1,000 v, nesoi

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