Model: 520B201

Circuit Breaker

Properties:

Thread Pitch Diameters
+0.3503/+0.3537 inches
Thread Pitch Diameters
+0.3503 to 0.3537 inches
Body Style
Single pole type
Bushing Length
Between 0.125 inches and 0.145 inches
Body Length
1.750 inches
Body Width
0.625 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
Between 0.594 inches and 0.656 inches
Fragility Factor
Moderately rugged
Mounting Surface To Terminal End Distance
1.700 inches
Pole Quantity
1
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
200.0 milliamperes ac single location
Operating Voltage Type And Rating Per Pole In Volts
240.0 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 single location
Trip Release Characteristic
Time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
115.0 single location
Ultimate Trip Time Per Pole In Seconds
10.000 single location and
Ultimate Trip Time Per Pole In Seconds
40.000 single location
Ultimate Trip Time Per Pole In Seconds
10.000 and 40.000 single location
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
Internal Trip Release Configuration
Series trip single location
Thread Size
0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current
0.500 at 200 pct single location and
Trip Delay Time In Seconds Per Rated Continuous Current
9.000 at 200 pct single location
Trip Delay Time In Seconds Per Rated Continuous Current
0.500 at 200 pct and 9.000 at 200 pct single location
Inclosure Protection Type For Which Designed
Hermetically sealed and shock resistant and
Inclosure Protection Type For Which Designed
Vibration resistant and fungus resistant and moisture resistant
Inclosure Protection Type For Which Designed
Hermetically sealed and shock resistant and vibration resistant and fungus resistant and moisture resistant
Frequency In Hertz
400.0 single location
Unpackaged Unit Weight
1.800 ounces
Precious Material And Location
Contact surfaces silver
Precious Material
Silver
Thread Series Designator
Unef
Terminal Type And Quantity
2 wire hook
NSN
5925-00-660-3871
Part Number
520B201
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 520B201 NSN 5925-00-660-3871

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:
S
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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