Chromalox Big Red Book

Heating Cable

APS-4C Automatic Snow/Ice Melting System Controller (cont’d.)

Energy Management Computer (EMC) Interface Inputs

OVERRIDE ON (10 mA dry switch contact) OVERRIDE OFF (10 mA dry switch contact) SUPPLY (10 mA dry switch contact) SNOW (10 mA dry switch contact) HEAT (10 mA dry switch contact) HIGH TEMP (10 mA dry switch contact) ALARM (10 mA dry switch contact)

Outputs

Environmental Operating temperature Storage temperature

-40°F to 160°F (-40°C to 71°C) -50°F to 180°F (-45°C to 82°C)

Dimensions

CL

1 x 1-1/16" (27mm) Conduit Entry

1.3125" (33mm)

2.3125" (59mm)

9.125" (232mm)

RESET

TEST GFEP TEST

2 x 1-11/16" (43mm) Conduit Entry

6.562" (167mm)

2.00" (51mm)

2.00" (51mm)

CL

11.500" (292mm)

Specifications and Ordering Information Model Number APS-4C Control Panel (277 Volt Single Phase) APS-4C Control Panel (208-240 Volt 3-Phase) APS-4C Control Panel (277/480 Volt 3-Phase) APS-4C Control Panel (600 Volt 3-Phase)

PCN

Stock

389845 389853 389861 399525

S S S

NS

Stock Status: S = stock AS = assembly stock NS = non-stock To Order— Specify model, PCN and quantity.

G-54