
FS-W12
The FS-W12-series is suitable for the Tworth models FS and ES, providing ATEX/IECEx Zone 1 Ex de certification. The enhanced safety enables end users to use Exd or Ex e sealing glands.
Features:
Single-pole double-throw or double-pole double-throw 4 A contacts
Intrinsically safe
Operating temperature from -40°C to 105°C
Options:
M20 or 1/2 in. NPT conduit entry
Stainless steel or aluminum connectors

FS-W1A
The FS-W1A-series is suitable for the Tworth models FS and ES, providing ATEX/IECEx Zone 1 Ex de certification. The enhanced safety enables end users to use Ex d"or Ex e sealing glands.
Features:
Single-pole double-throw or double-pole double-throw 4 A contacts
Intrinsically safe
Operating temperature from -40°C to 105°C
Options:
M20 or 1/2 in. NPT conduit entry
Stainless steel or aluminum connectors

BW-series
The BW-series is suitable for the Tworth models FS and ES, providing ATEX/IECEx Zone 1 Ex de certification. The enhanced safety enables end users to use Ex d"or Ex e sealing glands.
Features:
Single-pole double-throw or double-pole double-throw 4 A contacts
Intrinsically safe
Operating temperature from -40°C to 105°C
Options:
M20 or 1/2 in. NPT conduit entry
Stainless steel or aluminum connectors