Cut Sheet

Class I, Division 1 and 2, Groups C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7CD, 9EFG
EFDB Selector Switch Operator/Switch Assembly  Maintained Contact

Thread
Size
(In., NPSM) Description
Diagram Catalog Number
Left Center Right
Switch Assembly
Only
Switch Assembly
with Cover
2 Position
Nameplate: HandAuto
1/2
2 Position,
2 Circuit
None SSBA1-2Q EFKB-12
1/2
2 Position,
4 Circuits
None SSBA2-2Q EFKB-35
3 Position
Nameplate: HandOffAuto
1/2
3 Position,
2 Circuit
SSBA1-3Q EFKB-102
1/2
3 Position,
4 Circuit
SSBA2-3Q EFKB-345
EFDB Selector Switch Operator/Switch Assembly  Modified Operations

Thread
Size
(In., NPSM) Description
Diagram Catalog Number
Left Center Right
Switch Assembly
Only
Switch Assembly
with Cover
3 Position
Momentary contact right position. Spring return to center. Maintained contact left position.
Note: Standard legend plate reads Hand/Off/Auto
1/2
3 Position,
2 Circuit
SSBAS-1-3 EFKB-102-SRC
1/2
3 Position,
4 Circuits
SSBAS-2-3 EFKB-345-SRC
2 Circuit
Momentary contact left position. Spring return to center. Maintained contact right position.
Note: Standard legend plate reads Hand/Off/Auto
1/2
3 Position,
2 Circuit
SSBASL-1-3 EFKB-102-SLC
1/2
3 Position,
4 Circuits
SSBASL-2-3 EFKB-345-SLC
4 Circuit
Momentary contact right position. Spring return to center. Maintained contact left position.
Note: Standard legend plate reads Hand/Off/Auto
1/2
3 Position,
4 Circuits
SSBASRA-2-3 EFKB-637-SRC
 When installed on a single gang box the cover assembly is suitable for use in Group B environments but will not be marked Group B.
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© January 2011

EFDB Series Factory Sealed Selector Switch Cover Assemblies
Explosionproof, Dust-Ignitionproof
10 Amp, 600 Vac Max. for Heavy Duty Use.