Vdc Vehicles (10-60 Vdc Direct Connection); Power Cable Identification; Vehicle 10-60Vdc Direct Power Connection - Honeywell Thor VM3 User Manual

12-48 VDC Vehicles (10-60 VDC Direct Connection)

CAUTION - For installation by trained service personnel only.
Use caution when routing the power cable. See
Fuse Requirements
WARNING - For proper and safe installation, the input power cable must be connected to a fused circuit on the
vehicle. If the supply connection is made directly to the battery, the fuse should be installed in the positive lead
within 5 inches (12.7 cm) of the battery's positive (+) terminal. Use VM3055FUSEKIT to install this fuse or use
equivalent 20A fast blow fuse.
Note: For North America, a UL Listed fuse is to be used

Power Cable Identification

The Power cable has a right angle connector and 6 wires:
Twist the red and red/white wires together and twist the
black and black/white wires together before connecting to
vehicle power.
Note: Correct electrical polarity is required for safe and proper installation. See the figures below for additional wire
color-coding specifics.
The Thor VM3 DC input wires (Red, Red/White DC+ and Black, Black/White DC-) and the Blue ignition input wire are
galvanically isolated. The Green ground input is used for electrostatic discharge (ESD) protection.

Vehicle 10-60VDC Direct Power Connection

1. The Thor VM3 must not be mounted in the Quick Mount Smart Dock. The power switch on the dock must be
turned Off. The power cable must be UNPLUGGED from the dock.
2. While observing the
actual battery terminals of the vehicle (if using unswitched power).
3. Use proper electrical and mechanical fastening means for terminating the cable. Properly sized "crimp" type
electrical terminals are an accepted method of termination. Please select electrical connectors sized for use
with 20AWG (0.81mm2) conductors.
4. Refer to the wiring diagrams following this section for wire colors and connections:
• Ignition Control Wiring Diagram
• Auto-On Control Wiring Diagram
• Manual Control Wiring Diagram
Fuse Requirements (see page 1-25), connect the power cable as close as possible to the
(page 1-27)
(page 1-28)
(page 1-29)
Power Cable Cautions (page 1-24).
Wire Color
Red
Red/White
Black
Black/White
Green
Blue
Connection
DC + (10-60 VDC)
DC + (10-60 VDC)
DC -
DC -
Ground
Ignition Input (optional)
1 - 25