Permafrost Prevention

To prevent frost heave under industrial freezer units, Delta-Therm M.I. cable assemblies are UL Listed and CSA Certified for permafrost prevention. They’re easy to install, and resist fire and degradation over time. All our thermostats are UL Listed and rated from NEMA 1 to NEMA 4X. Essential accessories are provided with each system. All Delta-Therm installation methods are NEC Code Compliant.
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Post-installation wiring inspections will extend the warranty period of Delta-Therm M.I. cable to 10 years.

Permafrost Cable Assemblies

Delta-Therm M.I. Cable assemblies for Permafrost prevention reliably maintain the optimum temperature of the permafrost layer beneath freezer floors. They come ready to install with factory terminations and resistance testing. M.I. cables resist fire, corrosion and degradation over time, and are available with one or two conductors.

Data Sheets

M.I. Permafrost Prev Cable

Installation

M.I. Permafrost Prev Installation

Warranties

M.I. Cable Warranty

Permafrost Thermostats

Delta-Therm offers electronic temperature and remote bulb controls, as well as ambient sensing thermostats for Permafrost prevention. All are UL Listed. Product ratings range from NEMA 1 to NEMA 4X depending on the application.

Data Sheets

A421ABC-2C Temp Control

A421AEC-2C Temp Control

Installation

A421ABC-2C Installation Instructions

A421AEC-2C Installation Instructions

Warranties

Thermostat Warranty

Permafrost Panels

GFPE Power Control Panels, available in NEMA 1*, 4 or 4X enclosures, meet or exceed safety codes for Permafrost Prevention. Delta-Therm also offers Enclosed DT Contactor panels and UL Listed/ Control/Monitor/Alarm custom design panels.

*Recommended for economy, accessibility and convenience except where the environment demands greater protection from dust, weather and corrosion.

Data Sheets

Control Panel with GFPE

Custom Panel

Enclosed Contactor Panel

Installation

Typical Wiring for Contactor Panel

Warranties

Panels Warranty