IC D/H-12 Carwash Controller 30 Amp 77715 (Dilling Harris eq.) (NEW)

IC

IC D/H-12 Carwash Controller 30 Amp 77715 (Dilling Harris eq.) (NEW)

$275.00

The DH-12 carwash controller is equivalent to the Dilling-Harris D/H-12 , P/N 77715 with many enhanced features, listed below. The latest design is V2.1 (Feb 2026) as annotated below:

  • V2.1: Heavier diodes, higher voltage rated input diodes - reduces chance of failure
  • V2.1: Surge Suppressor added to handle long cable runs to each bay
  • 12 Red LED input indicators
  • 1 Green LED Output indicator
  • Heavy-Duty Power Quick Connectors
  • Upgraded to handle up to 30 amp loads
  • Intenal fuse protection for both the load (30 Amp) and relay (1 amp)

NOTE: These are build to order. Pre-order now and please allow 1 - 2 weeks lead time.

Functional Description

This controller accepts a +24V AC or DC signal on the left side terminal strips, with the common on the right side terminal strip. Any one or more +24V inputs will turn on the internal relay to power a 110 to 220VAC motor, pump, light, or other device. Rated for devices up to 30 Amps.

Red LEDs indicate when incoming signal is on (24V DC or AC). Green LED shows when output relay is engaged.

Typical application is for a bay carwash controller. The carwash +24V solenoids which actuate selections such as soap, wax, etc. are hooked parallel with this controller. If any solenoid is activated, the relay inside this unit turns on, activating a motor, pump, or other device.

 
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