Model: 74-648-50-6

Circuit Breaker

Properties:

Body Style
Multipole-multiple actuator type
Body Length
2.500 inches
Body Width
2.273 inches
Body Height
2.000 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
1.190 inches
Center To Center Distance Between Terminals Parallel To Width
0.750 inches
Unthreaded Mounting Hole Diameter
0.562 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
1.812 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
0.750 inches
Fragility Factor
Moderately rugged
Mounting Surface To Terminal End Distance
Between 1.990 inches and 2.010 inches
Pole Quantity
3
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
6 unthreaded hole
Storage Type
General purpose warehouse
Special Handling Feature
Magnetic
Maximum Continuous Load Current Rating Per Pole
50.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
208.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
3500.0 ac all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic-hydraulic 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
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
3 toggle
Actuator Function
Trip-reset
Actuator Position Designation
At each pole
External Actuator Linkage Arrangement
One, two, and three linked
Internal Trip Release Configuration
Series trip all locations
Thread Size
0.138 inches
Trip Delay Time In Seconds Per Rated Continuous Current
0.300 at 200 pct all locations and 0.900 at 200 pct all locations
Inclosure Protection Type For Which Designed
Humidity resistant and vibration resistant and shock resistant and explosion proof and salt spray proof and fungus resistant and sand resistant and dustproof
Frequency In Hertz
400.0 all locations
Unpackaged Unit Weight
0.810 pounds
Terminal Type And Quantity
6 threaded stud
NSN
5925-00-864-9405
Part Number
74-648-50-6
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 74-648-50-6 NSN 5925-00-864-9405

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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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