Power Cable Identification; Vehicle 50-150Vdc Power Connection - Honeywell Thor VM3 User Manual

Shown With Lid Attached
• Lid is secured with screws on the side of lid.
If the DC/DC power supply does not have screws in the side of the lid, see
Supply, Screws on Top of Lid)
CAUTION - For installation by trained service personnel only.
CAUTION - Usage in areas where moisture can affect the power supply connections should be avoided. The
power supply should be mounted in a dry location within the vehicle or placed in a suitable protective enclosure.
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
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 50-150VDC Power Connection

1. Please review the
2. 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.
3. Route the cable from the Thor VM3 to the DC/DC power supply. Route the power cable the shortest way pos-
sible. The cable is rated for a maximum temperature of 105°C (221°F). When routing this cable, it should be
protected from physical damage and from surfaces that might exceed this temperature. Do not expose the
cable to chemicals or oil that may cause the wiring insulation to deteriorate. Always route the cable so that it
does not interfere with safe operation and maintenance of the vehicle.
4. Cut the cable to length and strip the wire ends.
5. Remove the lid from the DC/DC power supply.
6. Connect the stripped end of the positive wires (red and red/white twisted together or a single red wire) to the
output block. See
1 - 30
(page 1-33).
Wiring Diagram (page 1-32), before beginning power cable install.
Power Cable Identification
Shown With Lid Removed
• Input and output connector blocks under lid.
• One positive (Vin+), negative (Vin-) and ground (
connection in input block.
• One positive (Vo+) and negative (Vo-) connection in
output block.
60-144 VDC Vehicles (50-150 VDC Power
Power Cable Cautions (page 1-24).
Wire Color
Red (2 wires)
Black (2 wires)
Green
Blue
(page 1-30).
Connection
DC + (10-60 VDC)
DC -
Ground
Ignition Input (not used)
Wiring Diagram (page 1-32) for
)