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Item Code: ETI22472
UPC/GTIN/Part #: APS-4C 208-240V

Description:  APS-4C 208-240V Snow Melting Control

ETI (Environmental Technology Inc.) Snow Switch. Automatic Snow/Ice Melting System Control - 208-240 VAC Three Phase, UL / CSA - Order No. 22472


Typically in stock at vendor warehouse, call for delivery time

Condition:  New in box



Click Images to Enlarge



Voltage: 208 or 240 Volt
Phase: 3 Phase
Output Relay: 208-240VAC at 50 Amps Resistive Load
Applications: Snow Melting Systems
Enclosure: NEMA 3R
Manufacturer: Environmental Technology Inc
Included: Controller

Features of ETI APS-4C 208-240 Volt 3-Phase Snow Melting Controller

The ETI APS-4C 208/240 Volt 3-Phase Snow Switch along with the appropriate snow sensors (sold separately) automatically controls snow and ice melting systems and ensures minimum operating cost of the heating system. The controller has an adjustable hold on timer that will continue the heater operation for up to 10 hours after snow stops to ensure complete melting of the snow and ice.

Automatic snow/ice melting control

Satellite contactor interface for larger systems

Energy management computer (EMC) interface

Accommodates mineral insulated (MI) cable, constant wattage, and self-regulating electric heaters

Multiple sensor capability

Advanced patented and patent pending ground fault protection

Heater hold-on and test capabilities


Simple to install and operate

Low system costs

Minimum energy costs

The APS-4C 208/240 volt snow melting system controller provides a complete interface for use in environments supervised by an energy management computer (EMC). This feature can also be used for general purpose remote control and annunciation.

All sensor and communications wiring is NEC Class 2. This simplifies installation while enhancing fire and shock safety. The APS-4C can interface up to six sensors from the CIT-1 product family. Using more sensors provides superior performance by better matching the controller to site performance requirements.

Typical applications include controlling electric snow melting systems for sidewalks, driveways, doorways, stairs, loading docks, ramps for the physically challenged and parking garages.

Customers Who Purchased This Item Also Purchased:
Item CodeDescriptionVendorQuantity
ZH-C Roof Clips 50pcs or Spacers 25pcs
Easy Heat Roof Clips and Spacers. Used to attach heating cable to roof and also to maintain cable spacing in gutters and downspouts. Each kit has components for 50 roof clips or 25 cable spacers.
Easy Heat
23832 Pavement Sensor Housing
ETI (Environmental Technology Inc.) Housing that is Required for use with HSC-4 or SIT-6E Sensor
CIT-1 Aerial Snow Sensor
ETI (Environmental Technology Inc.) General Purpose Snow Sensor used with any APS or EUR series control panel
GIT-1 Gutter Ice Sensor
ETI (Environmental Technology Inc.) P/N 11351 - Gutter Mounted Ice Sensor. Automatic Gutter Deicing Controls Operating Costs with APS-3C or APS-4C Control Panel
SC-40C 208-240V
SC-40C Satellite Contactor 208-240V
ETI (Environmental Technology Inc.) Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System - NEMA3R - modular control system - GFEP built in-208-240v 3phase-50 amp contacts
SIT-6E Pavement Snow Sensor No Housing
ETI (Environmental Technology Inc.) Pavement Mounted Snow & Ice Sensor used with any APS series or EUR–5A Control Panel - Requires 23832 Pavement Sensor Housing
SRF 5-2RG 240Volt Roof/Gutter Heat Trace
Chromalox Part (PCN) #: 386337 - 208Volt/240Volt/277Volt Chromalox Self-Regulating Roof and Gutter De-Icing Heating Cable - *** Sold by the foot and cut to length. This is a custom order which cannot be cancelled or returned. ***