Model: 603B302

Circuit Breaker
Description:

+0.3503/+0.3537 inches thread pitch diameters, , 0.380 inches bushing length, 1.562 inches body length, 1.937 inches body width.

Properties:

Thread Pitch Diameters
+0.3503/+0.3537 inches
Bushing Length
0.380 inches
Body Length
1.562 inches
Body Width
1.937 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
Between 0.860 inches and 0.890 inches
Center To Center Distance Between Terminals Parallel To Width
Between 0.610 inches and 0.640 inches
Nonturn Device Location
At 3 oclock and at 9 oclock
Nonturn Device Radius
Between 0.610 inches and 0.640 inches
Nonturn Device Diameter
Between 0.235 inches and 0.265 inches
Fragility Factor
Moderately rugged
Mounting Surface To Terminal End Distance
1.780 inches
Pole Quantity
3
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
1 threaded bushing w/panel seal
Storage Type
General purpose warehouse
Special Handling Feature
Magnetic
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
3.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
50.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1000.0 dc 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
115.0 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 two
Internal Trip Release Configuration
Relay trip all locations
Thread Size
0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current
0.600 at 200 pct all locations and 6.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Hermetically sealed and shock resistant and vibration resistant
Unpackaged Unit Weight
5.400 ounces
Thread Series Designator
Unef
Terminal Type And Quantity
6 wire hook and 6 tab, solder lug
NSN
5925-00-056-0896
Part Number
603B302
Description
Circuit Breaker
CAGE
81541

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 603B302 NSN 5925-00-056-0896

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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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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