The Wacker Neuson Unit Relay is a genuine OEM component designed for PSA2500 series submersible pumps. Sourced directly from Wacker Neuson, this relay meets the exact electrical specifications of the original part, ensuring proper switching function and circuit protection within the pump's control system. It is confirmed compatible with PSA2500 models, covering both machine configurations in that series.
Key Features
- OEM-Matched Electrical Specs — Built to the original switching capacity and coil voltage ratings required by the PSA2500 control circuit, so the relay engages and releases correctly under load.
- Direct-Fit Replacement — Mounts into the existing relay socket or terminal block using the same footprint and pin configuration as the factory unit, streamlining the swap.
- PSA2500 Series Compatibility — Verified fitment across PSA2500 submersible pump configurations, giving you confidence before you order.
- Sustained Pump Operation — A functioning relay ensures the pump motor receives clean, controlled start and stop signals; a failed relay can cause no-start conditions or uncontrolled motor cycling.
- Electrical Safety Assurance — As a switching component in a submersible pump circuit, using a correctly rated OEM relay helps prevent overload conditions and protects downstream electrical components.
The Unit Relay is an electromechanical switching device that controls the flow of electrical current to the pump motor based on signals from the pump's control circuit. It acts as the gatekeeper between the power supply and the motor, opening and closing the circuit in response to operational commands such as float switch signals or manual controls. When the relay fails — whether through contact wear, coil burnout, or heat damage — the pump may refuse to start, run continuously without stopping, or trip electrical protection devices, requiring prompt replacement to restore normal operation.
Part Details
| Part Number | 5000150666 |
|---|---|
| Old Part Number | 0150666 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Unit Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PSA2 500 | PSA2500 | 5000009114, 5000009181 |
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.
