Description
Overview:
This genuine HAMM relay is a compact switching unit for the electrical system on Hamm twin drum rollers, built to deliver consistent operation in tough site conditions. Designed as a direct replacement for OEM No. 397628, it fits the HD8 and HD10C models and integrates into the existing relay socket. The unit features a durable moulded housing (black) with robust blade terminals to handle frequent on/off cycles and vibration. In use, it allows a low-current control signal to switch higher-current circuits safely, helping to protect wiring and maintain stable performance across the machine's key functions. Suitable for workshops, fleet maintenance, and on-site repairs, it supports reliable starting and control circuits on compact rollers where space and reliability matter.
Key Features:
- Genuine HAMM part for assured compatibility and reliability (OEM 397628)
- Purpose-built for HD8 and HD10C twin drum rollers
- Durable moulded housing and sturdy blade terminals for long service life
- Stable switching performance under vibration, dust, and temperature changes
- Direct plug-in replacement to minimise downtime during servicing
- Supports safe control of higher-current circuits from low-current signals
- Suitable for routine maintenance schedules and rapid repairs on site
Typical Applications:
Used to switch and protect key electrical circuits on Hamm twin drum rollers, including control feeds for starter and accessory circuits, lighting, fans, and safety or control logic. Ideal for restoring reliable operation after relay wear or failure, or as a preventative replacement during planned maintenance to keep machines running consistently on construction, roadworks, and hire fleet duties.
Also known as:
Roller relay, HD8 relay, HD10C relay, electrical control relay, machine relay module, equipment switching relay.
Fits Models:
HD8-10C
HD8-HD10C
HD810C
Alternate Part Numbers:
397628
Product Specifications
| L&S Part No. | 397628 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | HAMM |
| OEM No. | 397628 |
| Unit of Sale | 1 |
| Machine Type | Rollers |
| Key Features | - Genuine HAMM part, OEM No. 397628 - Fits HD8 and HD10C twin drum rollers - Durable moulded housing with robust blade terminals - Direct plug-in replacement for easy servicing - Supports safe switching of higher-current circuits |
| Fits Models | HD8 - 10C (H170) Twin Drum Compaction Roller |


