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Important Safety Information

HIGH VOLTAGE WARNING!

 – Turn off power 

at the main service panel before installing.

Programmable, 

Single-Phase 

Voltage Monitor 

with Surge 

Protection

1. Remove cover by extracting the screw from the bottom of the 

enclosure.

2. Remove desired size knock-outs from the enclosure needed to install 

the required conduits (1/2” or 3/4”).

3. Mount the enclosure to the desired surface with (4) screws and pull 

any conduits through the knockouts on the bottom as needed  

(refer to Fig. 0).

4. Rest the front panel door in a vertical position using the contactor 

bracket as a base of support as seen in Fig. 1.

5.  Hold the contactor and unscrew the two Phillips head mounting 

screws on the front of the panel also seen in Fig. 1.

6.  Whilst holding the contactor against the front panel, lay the front 

panel face down as seen in Fig. 2.

7.  Rotate the contactor 90 degrees counter clockwise and rest it on its 

base as seen in Fig. 3. This orientation will give you access to the 

L1, L3 and T1, T3 terminal screws which are needed to mount the 

heavy gauge wires of the 60 AMP circuit. CAUTION: DO NOT USE 

THE ¼” QUICK CONNECT TERMINALS IN A 60 AMP CIRCUIT.

8.  Insert the line wires from the incoming power to the L1 & L3 

terminals and tighten down the screws as seen in Fig. 4.

9.  Insert the load (equipment) wires to T1 & T3 and tighten down the 

screws as seen in Fig. 5.

10.  Rotate the contactor 90 degrees clockwise, then rotate the whole 

front panel and contactor assembly 180 degrees counter clockwise 

so the front panel is facing up and the contactor is resting on its side 

as seen in Fig. 6.

11.  Adjust the position of the contactor to align the mounting bracket 

threaded holes with the front panels through holes also seen  

in Fig. 6.

12.  Re-insert the two Phillips head screws which secure the contactor to 

the front panel and tighten down securely seen again in Fig. 6.

13.  Tilt front panel diagonally and insert the panel into the enclosure as 

seen in Fig. 7.

14.  Lay the front panel horizontally in the enclosure and align the holes 

on the sides of the case one at a time also seen in Fig. 7.

15.  Using the two larger screws included in the kit, attach the front panel 

to the enclosure as seen in Fig. 8, (do not overtighten screws)

16.  Close the hinged front plate and secure the upper right corner  

into the bracket with the small screw provided in kit as seen in 

Figures 9 & 10

17.  Once settings have been conFig.ured, attach the top cover and 

secure with screw.

Installation

ICM493-60A 

control board

Use 75°C Copper wire only

Wiring Diagram

Fig. 0

Fig. 1

Fig. 2

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig.ures 0 - 10

Remove 

mounting 

screws

Align & fasten with screws

Align 

hole

Fasten with screw

Fig. 3

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