The six 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.
Six feet is the standard length and it suits a pack the module sits inside or beside. If the module is mounted away from the cells, or the pack is physically large, the twelve foot version is the one to order. Running out of harness at the far corner of a pack 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 | CWHTHEX202 |
|---|---|
| Type | Harness for Orion thermistor expansion module |
| Length | 6 ft, which is 1.83 m |
| Supports | Up to 20 thermistors |
| Termination | Pre terminated both ends |
| Compatibility | Thermistor expansion module Rev B |
| Thermistors | Not included, sold separately |
| Weight | 0.5 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
- Also available in a 12 ft version for larger packs
Compatibility
For the Orion thermistor expansion module, Rev B. Check your module revision before ordering, since this harness is specified to Rev B.
If your expansion module is mounted away from the cells, or the pack is large, order the 12 ft version instead.
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 6 ft thermistor expansion harness
Downloads
No document is published for this harness. The pinout is in Orion's own thermistor expansion module documentation.



Worldwide Shipping
Fellten offers worldwide shipping through trusted carriers including UPS, DHL, and pallet freight services. Whether you're a professional installer or a classic car enthusiast, we ensure your order is packed securely and delivered efficiently.
We are fully certified to ship dangerous goods, including lithium-ion batteries, in compliance with all international regulations.
For UK orders, most in-stock items are eligible for next working day delivery if placed before 12:00 PM. Orders placed after this time will be shipped on the next working day. Please note that all delivery estimates are stock-dependent, and you will be notified if any delays are expected.
Shipping costs are calculated at checkout based on your location and order details, so you’ll always have clear and accurate pricing before completing your purchase.
Payments are securely processed using Stripe. We accept all major credit and debit cards.
