www.topworx.com 
5 
 
TM 
Dimensions and Materials: TopWorx™ DXP - IIC 
 
MATERIALS OF CONSTRUCTION 
Enclosure 
Cast A360 aluminum with dichro-
mate conversion coating inside & 
out, epoxy coated exterior rated for 
250  hrs salt spray per ASTM B117 
Fasteners 
304 Stainless Steel standard 
316 Stainless Steel optional 
Shaft 
304 Stainless Steel standard 
316 Stainless Steel optional 
Shaft Bushing  Oilite Bronze 
Indicator Dome  Polycarbonate, UV F1 rated 
Seals 
O-ring seals available in: Buna & 
Silicone, 
 
Maximum Fastener Torque Specifications 
Enclosure Housing Bolts
  8 ft-lbs [10.8 N·m] 
Indicator Dome Screws  20 in-oz [141 mN·m] 
Bottom Mounting Holes  10 ft-lbs [13.6 N·m] 
Illustration #5