Model: DD493A

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.375 inches single mounting facility
Overall Length
2.125 inches
Overall Height
1.875 inches
Overall Width
1.609 inches
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.812 inches single actuator
Individual Section Quantity
2
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
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
110.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Switch Actuator Indexing Position Quantity
3 single actuator
Shaft Type
Round single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes single section rear
Switch Actuator Positioning Increment
60.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
1.0 amperes resistive load dc at sea level
Contact Load Current Rating
500.0 milliamperes resistive load ac at sea level
Precious Material And Location
Contacts and rotor blade surfaces silver
Precious Material
Silver
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-249-1445
Part Number
DD493A
Description
Switch,rotary
CAGE
18778

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 DD493A NSN 5930-00-249-1445

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:
S
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
72D
TCC:
Z
SHC:
9
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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