ST402NP Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for ST402NP products.

Tip: include the full model number printed on your ST402NP label for the best match.

ST402NP manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

STELPRO ST Series Non-Programmable Electronic Thermostat Owner’s Manual

January 31, 2026

ST Series Non-Programmable Electronic Thermostat STELPRO OWNER’S MANUAL NON-PROGRAMMABLE ELECTRONIC THERMOSTAT FOR BASEBOARDS AND CONVECTORS 1-844-STELPRO WWW.STELPRO.COM IMPORTANT INSTRUCTIONS THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED ELECTRICIAN. Connect the thermostat to a 120 to 240 VAC power source ONLY…

Brand: StelPro

STELPRO ST302NP Non Programmable Electronic Thermostat for Baseboards and Convectors Owner’s Manual

July 24, 2022

STELPRO ST302NP Non Programmable Electronic Thermostat for Baseboards and Convectors IMPORTANT INSTRUCTIONS THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED ELECTRICIAN. Connect the thermostat to a 120 to 240 VAC power source ONLY and comply with load limits. WARNING –…

Brand: StelPro

STELPRO ST252NP Non Programmable Electronic Thermostat for Baseboards and Convectors Owner’s Manual

July 24, 2022

STELPRO ST252NP Non-Programmable Electronic Thermostat for Baseboards and Convectors Owner's NON-PROGRAMMABLE ELECTRONIC THERMOSTAT FOR BASEBOARDS AND CONVECTORS IMPORTANT INSTRUCTIONS THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED ELECTRICIAN. Connect the thermostat to a 120 to 240 VAC power source ONLY…

Brand: StelPro

STELPRO ST252NP Non-Programmable Electronic Thermostat Owner’s Manual

December 10, 2021

STELPRO ST252NP Non-Programmable Electronic Thermostat Owner's Manual View all STELPRO thermostat manual WWW.STELPRO.COM IMPORTANT INSTRUCTIONS THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED ELECTRICIAN. Connect the thermostat to a 120 to 240 VAC power source ONLY and comply with load…

Brand: StelPro