A JONHON DLQ5-T315 manual service disconnect, fitted with a 315A Bussmann fuse, for isolating the high voltage system on an EV conversion or battery pack.
The service disconnect is the part a technician pulls before touching anything live. Removing the plug breaks the high voltage circuit and opens the interlock loop, which tells the BMS or VCU that the pack is no longer safe to energise. It carries the pack main fuse inside the same body, so one component handles both isolation and overcurrent protection.
Key specifications
| Manufacturer part | JONHON DLQ5-T315 |
|---|---|
| Type | Manual service disconnect, fuse plug |
| Fuse | 315A Bussmann, 700V DC |
| Series rated current | 200A |
| Series rated voltage | 690V AC / 750V DC |
| Ingress protection | IP68, IPXXB, IPXXD |
| Operating temperature | -40 °C to +125 °C |
| Weight | 0.30 kg |
| Standard | JONHON Q/21EJ2656 |
Features
- High voltage interlock breaks the signal loop before the power contacts separate
- Push-pull locking body, no tools needed to remove
- Secondary separation and IPXXB finger protection on the exposed face
- IP68 sealed for underfloor and engine bay mounting
- Fuse and isolation in one component, saving a separate fuse holder
Compatibility
Mates with the Fused Safety Disconnect Housing (JONHON DLQ5-Z). Used on Fellten battery packs, PDUs and all-in-one controllers. Other fuse gauges in the same body are available to order: 100A, 125A, 160A, 200A, 250A, 350A and 400A.
In the box
- 1 x DLQ5-T315 service disconnect plug with 315A fuse fitted
Downloads
Datasheet and install guide are in the Documents tab above. The interactive 3D model is further down this page.



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3D model
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