Model: MS21984-50

Circuit Breaker

Properties:

Body Style
Multipole-single actuator type
Bushing Length
0.250 inches
Body Length
2.250 inches
Body Width
2.203 inches
Body Height
2.125 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
1.187 inches
Center To Center Distance Between Terminals Parallel To Width
1.486 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
1.486 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
1.812 inches
Pole Quantity
3
Mounting Facility Type And Quantity
4 threaded hole
Storage Type
General purpose warehouse
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
50.0 amperes ac all locations and 50.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
115.0 ac all locations and 28.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1.500 ac all locations and 2.500 dc all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Thermal all locations
Trip Release Characteristic
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
138.0 all locations
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 all locations
Thread Size
0.138 inches
Trip Delay Time In Seconds Per Rated Continuous Current
10.000 at 200 pct all locations and 70.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Explosion resistant and moisture resistant
Trip Release Ambient Tempurature Rating
25.0 degrees celsius all locations
Frequency In Hertz
400.0 all locations
Test Data Document
81349-mil-c-5809 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unc
Terminal Type And Quantity
6 tab w/screw
Specification Data
96906-ms21984 government standard
NSN
5925-00-851-2849
Part Number
MS21984-50
Description
Circuit Breaker
CAGE
96906

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 MS21984-50 NSN 5925-00-851-2849

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
4.0 X 4.0 X 4.0
Paclk Weight:
0.6000lbs
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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