Model: 7274-52-1/2

Circuit Breaker

Properties:

Thread Pitch Diameters
+0.444/+0.447 inches
Body Style
Single pole type
Bushing Length
Between 0.328 inches and 0.390 inches
Body Length
Between 0.719 inches and 0.781 inches
Body Width
Between 0.531 inches and 0.593 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
Between 0.742 inches and 0.804 inches
Mounting Surface To Terminal End Distance
1.608 inches
Pole Quantity
1
Mounting Facility Type And Quantity
1 threaded bushing w/panel seal
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
2.0 amperes ac single location and 2.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts
120.0 ac single location and 30.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
500.0 ac single location and 2000.0 dc single location
Circuit Protection Type
Overcurrent single location
Trip Release Method
Thermal single location
Trip Release Characteristic
Time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
145.0 single location
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 push-pull
Actuator Function
Trip-reset
Actuator Position Designation
At pole one
Internal Trip Release Configuration
Series trip single location
Thread Size
0.438 inches
Trip Delay Time In Seconds Per Rated Continuous Current
2.000 at 200 pct single location and 20.000 at 200 pct single location and 0.160 at 500 pct single location and 1.000 at 500 pct single location and 0.046 at 1000 pct single location and 0.200 at 1000 pct single location
Inclosure Protection Type For Which Designed
Explosion proof
Trip Release Ambient Tempurature Rating
25.0 degrees celsius single location
Frequency In Hertz
60.0 single location or 400.0 single location
Thread Series Designator
Uns
Terminal Type And Quantity
2 screw
NSN
5925-01-176-0922
Part Number
7274-52-1/2
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 7274-52-1/2 NSN 5925-01-176-0922

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

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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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