Model: 4MC1-203-5

Circuit Breaker

Properties:

Body Style
Single pole type
Body Length
Between 2.490 inches and 2.510 inches
Body Width
Between 0.740 inches and 0.760 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
Between 1.928 inches and 1.948 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 2.052 inches and 2.072 inches
Switch Contact Arrangement
Single pole, double throw
Fragility Factor
Moderately rugged
Boss Height
Between 0.130 inches and 0.150 inches
Mounting Surface To Terminal End Distance
Between 2.461 inches and 2.481 inches
Pole Quantity
1
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
2 threaded hole
Storage Type
General purpose warehouse
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
5.0 amperes ac single location
Operating Voltage Type And Rating Per Pole In Volts
250.0 ac single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1000.0 ac single location
Circuit Protection Type
Overcurrent single location
Trip Release Method
Magnetic-hydraulic single location
Trip Release Characteristic
Time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
150.0 single location
Ultimate Trip Time Per Pole In Seconds
7.000 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 one
Auxiliary Switch Function And Quantity
1 alarm
Internal Trip Release Configuration
Series trip single location
Thread Size
0.138 inches
Switch Location And Position Designation
Internal at pole one
Trip Delay Time In Seconds Per Rated Continuous Current
3.000 at 200 pct single location and 9.000 at 200 pct single location and 0.800 at 300 pct single location and 2.500 at 300 pct single location and 0.400 at 400 pct single location and 1.000 at 400 pct single location
Inclosure Protection Type For Which Designed
Explosion resistant and fungus resistant and moisture resistant
Switch Terminal Type
Tab, solder lug
Switch Current Rating And Type In Amps
2.5 ac and 1.0 dc
Switch Voltage Rating And Type In Volts
250.0 ac and 50.0 dc
Frequency In Hertz
400.0 single location
Thread Series Designator
Unc
Terminal Type And Quantity
2 threaded stud
NSN
5925-00-481-5489
Part Number
4MC1-203-5
Description
Circuit Breaker
CAGE
82647

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 4MC1-203-5 NSN 5925-00-481-5489

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
77.5
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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