Model: 3A157-2

Rotary Switch

Special Features:

Supplied with 0.040 in. Thk aluminum wall plate

Properties:

Individual Section Quantity
1
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 single section front
Throw Quantity
3 single section rear
Contact Voltage Rating In Volts
125.0 highest ac voltage rating at sea level
Contact Voltage Rating In Volts
277.0 lowest ac voltage rating at sea level
Switch Actuator Indexing Position Quantity
4 single actuator
Terminal Type
Wire lead
Contact Load Current Rating
10.0 amperes resistive load highest ac voltage rating at sea level
Contact Load Current Rating
5.0 amperes resistive load lowest ac voltage rating at sea level
NSN
5930-01-309-5541
Part Number
3A157-2
Description
Switch,rotary
CAGE
03926

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 3A157-2 NSN 5930-01-309-5541

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

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Schedule B and Export
  • Schedule B: 8536509025
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

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

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