SINGLE WIRE 3/8 NPT STAINLESS STEEL HERMETICALLY SEALED TEMPERATURE SWITCH TURNS FAN ON AT 185°F AND OFF AT 165°F 

USE WITH NORTHERN FAN RELAY KITS Z40080 AND Z41030

*SEE PDF ATTACHMENT BELOW FOR GROUNDING INSTRUCTIONS

FOR SINGLE WIRE TEMP SWITCH SET AT 195° / 175° SEE Z18347

HINT: THE MECHANICAL THERMOSTAT OPENING TEMP SHOULD CLOSELY MATCH THE TEMP SWITCH