The twelve foot harness that connects an Orion thermistor expansion module, Rev B, to up to twenty thermistors. Pre terminated, so it plugs in rather than being built.
The expansion module is what turns a handful of BMS temperature inputs into twenty, and this is the loom that gets those twenty sensors back to it. On a pack built from several modules, twenty measurement points is the difference between knowing where the heat is and averaging it away.
Twelve feet is the long option, and it is the one to choose when the module is not next to the cells. If the expansion module is mounted in an electronics area away from the pack, or the pack is physically large, the six foot harness will not reach the far corner. Running out of harness at the end of an installation is an annoying way to find out.
Thermistors are not included. They are ordered to the length you need, which is the point: the harness is standard and the sensor leads are what you choose.
Key specifications
| Part | CWHTHEX203 |
|---|---|
| Type | Harness for Orion thermistor expansion module |
| Length | 12 ft, which is 3.6 m |
| Supports | Up to 20 thermistors |
| Termination | Pre terminated both ends |
| Compatibility | Thermistor expansion module Rev B |
| Thermistors | Not included, sold separately |
| Weight | 0.05 kg |
Features
- Pre terminated, so there is no connector to assemble and no pinout to get wrong
- Carries all twenty thermistor channels in one loom
- Twelve feet, for a module mounted away from the cells or a physically large pack
Compatibility
For the Orion thermistor expansion module, Rev B. Check your module revision before ordering, since this harness is specified to Rev B.
The 6 ft version is the shorter option, for a module mounted inside or beside the pack.
Thermistors are sold separately and come in various lead lengths. Choose those to suit where the sensors have to reach.
In the box
- 1 x 12 ft thermistor expansion harness
Downloads
No document is published for this harness. The pinout is in Orion's own thermistor expansion module documentation.