#121540 Master Disconnect Switch | Switches

121540

Rotary Switch

NSN 5930-00-761-6781

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
EA
NIIN:
007616781

Detail Specifications

Thread Class:
2a single mounting facility
Thread Length:
0.312 inches single mounting facility
Overall Length:
1.969 inches
Overall Height:
1.500 inches
Overall Width:
1.500 inches
Shaft Length:
0.750 inches single actuator
Individual Section Quantity:
1
Nonturn Device Type:
Slotted bushing at 12: 00 o'clock
Switch Contact Basic Design:
Nonpile-up symmetrical
Pole Quantity:
1 single section rear
Throw Quantity:
3 single section rear
Mounting Method:
Threaded bushing single mounting facility
Thready Qty Per Inch (tpi):
32 single mounting facility
Thread Size:
0.469 inches single mounting facility
Contact Voltage Rating In Volts:
120.0 lowest ac voltage rating at sea level
Contact Voltage Rating In Volts:
240.0 highest ac voltage rating at sea level
Switch Actuator Indexing Position Quantity:
3 single actuator
Terminal Type:
Quick disconnect, male
Contact Switching Action:
Breaks before makes single section rear
Switch Actuator Positioning Increment:
45.0 degrees single actuator
Switch Actuator Stop Device Type:
Fixed stop single actuator
Contact Load Current Rating:
15.0 amperes resistive load highest ac voltage rating at sea level
Contact Load Current Rating:
7.5 amperes resistive load lowest ac voltage rating at sea level
Style Designator:
Tap, square frame
Thread Series Designator:
Uns single mounting facility
NSN:
5930-00-761-6781
Item Name:
Switch,master Disconnect
Cage Code:
49524

Manufacturer Part Numbers

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
393S21P
Cage Code:
76854
RNCC:
3
RNVC:
2
RNAAC:
TX
Status:
A
MSDS:
SADC:

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Switches
--------- Rotary Switches
------------ P/N 121540

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Last Updated: 03/28/2025