Cut Sheet

NEC:
Class I, Division 1,Groups B, C, D
Class I, Division 2, Groups B, C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7CD, 9EFG
Controls
NEC/CEC CLASS/ZONE RATED HAZARDOUS LOCATION CONTROL STATIONS AND SWITCHES
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© May 2014
305
EFD/EFDB Series Factory Sealed Push Button Stations
Explosionproof, Dust-Ignitionproof
10 Amp, 600 Vac Max. for Heavy Duty Use. Furnished with Internal Ground Screw.
Hub Size
(Inches) Description
Nameplate
Marking
Catalog Number
Dead-End Feed-Thru
1-Gang   — Momentary Contact
1/2
1 Circuit
Universal
Start/Stop
EFDB150-U1 EFDCB150-U1
3/4 EFDB175-U1 EFDCB175-U1
1 EFDB110-U1 EFDCB110-U1
1/2
2 Circuits
Universal
Start/Stop
EFDB150-U2 EFDCB150-U2
3/4 EFDB175-U2 EFDCB175-U2
1 EFDB110-U2 EFDCB110-U2
1-Gang   — Red Mushroom Head — Maintained Contact – Emergency Stop Nameplate
1/2
1 Circuit
Universal
Emergency
Stop
EFDB150-UM1 EFDCB150-UM1
3/4 EFDB175-UM1 EFDCB175-UM1
1 EFDB110-UM1 EFDCB110-UM1
2-Gang  — Momentary Contact
1/2
2 Circuits
Universal
Start/Stop
EFD250-U1 EFDC250-U1
3/4 EFD275-U1 EFDC275-U1
1 EFD210-U1 EFDC210-U1
1/2
4 Circuits
Universal
Start/Stop
EFD250-U2 EFDC250-U2
3/4 EFD275-U2 EFDC275-U2
1 EFD210-U2 EFDC210-U2
3-Device  — Momentary Contact
1/2
3 Circuits
Universal
Start/Stop
EFDL50-U3 EFDCL50-U3
3/4 EFDL75-U3 EFDCL75-U3
1 EFDL10-U3 EFDCL10-U3
 Malleable iron body and aluminum cover. For aluminum body, add suffix —A.
 Aluminum body, not available.
 Shaded area indicates items suitable for Class I, Division 1 and 2, Groups B, C and D; Class II, Groups E, F and G and Class III.
For Class I, Division 1, Group B, external seals must be installed at each conduit entrance.