The Wacker Neuson Power Relay is a genuine OEM component designed for the E1250S, E1250P, HSH380S, and E3000 series hydronic surface heaters and ground heaters. As a direct OEM replacement, this relay is sourced and validated by Wacker Neuson to match the original electrical specification of the unit it replaces. Compatible across LP/NG, diesel, and generator-equipped configurations within these families, the covers a broad range of E1250 and E3000 variants as well as HSH380S models. Installing the correct relay keeps the heating control circuit operating as intended and helps maintain safe, consistent performance on the job.
Key Features
- OEM-Matched Switching Specification — Sourced directly from Wacker Neuson, this relay meets the original coil voltage and contact rating required by the heater's control circuit — no guesswork on electrical compatibility.
- Drop-In Electrical Replacement — Connector terminals and mounting footprint match the original relay position in the E1250S, E1250P, HSH380S, and E3000 control panels, allowing straightforward swap-out during service.
- Broad Fitment Across Heater Families — A single part number covers multiple configurations: LP/NG and diesel variants of the E1250 and HSH380S series, plus standard and generator-equipped E3000 ground heaters.
- Restores Reliable Heating Circuit Control — The power relay governs the switching of high-current heating loads; a failed relay can cause the heater to fail to ignite, cycle erratically, or shut down unexpectedly in cold-weather operations.
- Electrical Safety Integrity — Using the correct OEM-rated relay ensures the switching element handles the designed load without arcing, overheating, or nuisance tripping — critical in fuel-fired and electrically heated equipment.
A power relay acts as an electrically controlled switch, using a low-current signal from the heater's control board to open or close a high-current circuit that powers the primary heating or ignition load. In hydronic heaters and ground heaters like the E1250, HSH380S, and E3000, the relay is a key link between the controller and the heat-generating components — when it sticks, burns out, or fails to actuate, the heater may not start, may run continuously without control, or may trip protective circuits. Replacing a worn or failed relay with the correct OEM part restores proper switching behavior and protects the downstream electrical components from uncontrolled current flow.
Part Details
| Part Number | 5200022711 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Power Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| E3000 Ground Heater, 6kW Gen LB TC | E3000 | 5100025046, 5100055568, 5100056441, 5100056440, 5100025045 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
