Model: 990C910

Circuit Breaker

Properties:

Thread Pitch Diameters
+0.1177/+0.1214 inches
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
Fragility Factor
Moderately rugged
Boss Height
Between 0.130 inches and 0.150 inches
Mounting Surface To Terminal End Distance
2.611 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
50.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts
28.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
3000.0 dc single location
Circuit Protection Type
Overcurrent single location
Trip Release Method
Magnetic-hydraulic single location
Trip Release Characteristic
Instantaneous single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
120.0 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
0.138 inches
Inclosure Protection Type For Which Designed
Fungus proof and humidity resistant and moisture proof and shock resistant and vibration resistant
Unpackaged Unit Weight
4.250 ounces
Thread Series Designator
Unc
Terminal Type And Quantity
2 threaded stud
NSN
5925-00-450-5189
Part Number
990C910
Description
Circuit Breaker
CAGE
18323

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 990C910 NSN 5925-00-450-5189

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:
0.3000lbs
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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