Orion Main I/O (6 ft)
Terms and Conditions
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The main input and output harness for an Orion BMS 2, six feet long, pre terminated at the BMS end. This is the loom that carries everything the BMS needs other than cell taps: its power, its enable signals and its outputs to the rest of the vehicle.
The Orion BMS 2 has two sides to its wiring. The cell tap harnesses read the pack. This harness is everything else: the supply, the ignition and charge enable inputs, and the outputs that tell a charger or an inverter what the BMS has decided. Without it the BMS cannot be powered, let alone integrated.
It is supplied flying lead at the vehicle end on purpose. The BMS end is a moulded connector with the pins already correct. The other end is bare, because no two installations agree on where the ignition feed, the charge enable or the fault output actually need to go. You cut to length and terminate to suit your own loom.
Key specifications
| Part | CWHMIO3 |
|---|---|
| Type | Main I/O harness for Orion BMS 2 |
| Length | 6 ft, which is about 1.8 m |
| BMS end | Pre terminated connector |
| Vehicle end | Flying leads, terminate to suit |
| Weight | 0.2 kg |
Features
- Correct connector and pinout at the BMS end, so the one connection that must be right already is
- Six feet of lead, enough to reach out of most pack enclosures
- Flying leads at the vehicle end, so it suits any installation
- The harness the Orion BMS 2 needs to be powered at all, not an optional extra
Compatibility
For the Orion BMS 2, all cell counts. It is the same main I/O connector across the range.
If you bought a BMS as a kit you will already have one of these. This listing is for replacing a damaged harness, for a bare BMS unit bought on its own, or for a second one where the original is too short.
Check the function of each wire against Orion's current documentation before you terminate. Getting an enable input and an output the wrong way round is easy to do and not obvious afterwards.
In the box
- 1 x Orion BMS 2 main I/O harness, 6 ft
Downloads
No wiring document is published here. The pinout is in Orion's own BMS 2 wiring manual, and we can point you to the current version.