Model: 21EN51R3

Sensitive Switch

Properties:

Hazardous Locations/environmental Protection
Submersible
Actuator Style
Roller plunger
Actuator Free Position Height
Between 1.751 inches and 1.811 inches
Actuator Roller Diameter
0.120 inches
Actuator Roller Width
0.500 inches
Maximum Voltage Rating In Volts
28.0 dc
Inclosure Type
Fully enclosed
Nonpile-up Contact Arrangement
2 pole, double throw, one position momentary single switch unit
Actuator Movement
Between 0.040 pretravel inches and 0.250 overtravel inches and 0.020 differential inches
Contact Load Current Rating At Maximum Rated Voltage
5.000 amperes resistive dc and 3.000 amperes inductive dc and 4.000 amperes motor dc
Terminal Type And Quantity
1 connector, receptacle
NSN
5930-01-006-9888
Part Number
21EN51R3
Description
Switch,sensitive
CAGE
91929

A switch with a quick-acting mechanism actuated by a highly delicate tactile contact. Includes membrane switch. excludes switch, flexible; switch, pressure; and switch, thermostatic.

Part 21EN51R3 NSN 5930-01-006-9888

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00399
FIIG:
A053A0
Concept No.:
App. Key:
S
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509050
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, slide, for a voltage not exceeding 1,000 v

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