Model: 1900-2B3

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.430 inches single mounting facility
Hazardous Locations/environmental Protection
Explosion proof
Overall Length
2.110 inches
First Flat Length
0.250 inches single actuator
Flat Height
0.207 inches single actuator and 0.213 inches single actuator
Shaft Diameter
0.248 inches single actuator and 0.252 inches single actuator
Shaft Length
0.370 inches single actuator
Overall Diameter
1.100 inches
Nonturn Device Radius
0.432 inches at 3: 00 o'clock
Individual Section Quantity
2
Nonturn Device Type
Tab at 3: 00 o'clock
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 each section front
Throw Quantity
3 each section rear
Mounting Method
Threaded bushing single mounting facility
Features Provided
Metallic inclosure
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
115.0 ac at sea level28.0 dc at sea level
Switch Actuator Indexing Position Quantity
3 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Screw
Contact Switching Action
Breaks before makes each section rear
Switch Actuator Positioning Increment
36.0 degrees single actuator
Contact Load Current Rating
5.0 amperes resistive load ac at sea level2.0 amperes inductive load dc at sea level and 3.0 amperes resistive load dc at sea level
Style Designator
Tap, circular, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-617-6986
Part Number
1900-2B3
Description
Switch,rotary
CAGE
91812

A switch actuated by a definite angular rotation of the switch shaft about its axis. For items having rated actuation travel and pressure characteristics, see switch, sensitive. Excludes relay, rotary; switch, stepping; and switch, telephone (as modified).

Part 1900-2B3 NSN 5930-00-617-6986

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02134
FIIG:
A052B0
Concept No.:
1
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
2
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509020
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, rotary, rated at not over 5 a, for a voltage not exceeding 1,000 v

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