Model: 128SCSEA774-1

Stepping Switch

Properties:

Overall Depth
Between 5.720 inches and 5.750 inches
Overall Length
Between 6.970 inches and 7.000 inches
Overall Height
Between 4.680 inches and 4.760 inches
Current Type
Dc
Mounting Method
Stud
Mounting Configuration
4 mtg studs 1/4-28 thd 6.000 in. By 4.750 in. Mtg centers
Voltage Rating
24.0 volts
Bank Level Quantity
12
Contact Quantity Per Bank Level
26
Wiper Contact Quantity Per Bank Level
2
Contact Current Rating
3.0 amperes
Contact Type
Nonbridging
Nonbridging Level Quantity
26
Magnetic Coil Quantity
1
Coil Type
Drive
Electrical Resistance
20.0 ohms
Reference Number Differentiating Characteristics
As differentiated by the source control dwg no.
NSN
5930-00-334-8975
Part Number
128SCSEA774-1
Description
Switch,stepping
CAGE

An electromagnetically actuated switch having contact wipers which are successively rotated over fixed bank contacts. The contact wipers are progressively advanced over the fixed bank contacts through a repetitive series of stepping operations. The stepping operation may be a continuous forward rotation acting through 360 degrees to return to its normal unoperated position or it may be designed to include an electromagnetic and/or mechanical means for releasing and resetting the switch to its released position for a subsequent operation. The contact wipers may be mechanically held in contact with the fixed bank contacts after the armature of the actuating coil has released. The switch may be released at the end of its travel or at any intermediate position. It includes items designed with two electromagnetic actuators that enable the switch to operate in either direction. For items having the dual function of a switch and a relay assembled together on a common mounting, see relay-switch. For other than electromagnetically actuated switches whose contact wipers are manually rotated over fixed bank contacts, see switch, rotary. Excludes relay, rotary and switch, telephone (as modified).

Part 128SCSEA774-1 NSN 5930-00-334-8975

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26954
FIIG:
T142-A
Concept No.:
App. Key:
AA
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
10.0 X 10.0 X 8.0
Paclk Weight:
5.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
03
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
77.5
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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