The Wacker Neuson Thermal Switch is a genuine OEM component designed for PS4 series submersible pumps, including the PS4 11003HH and PS4 11003HF models. As a factory-sourced part, the is manufactured to the exact electrical and thermal specifications required by Wacker Neuson for safe and consistent pump operation. This switch is a direct replacement for the original unit and installs without modification to existing wiring harnesses or housings. If your PS4 submersible pump is tripping unexpectedly or failing to restart after heat events, replacing the thermal switch with a genuine part restores correct protective function.
Key Features
- Correct Trip Threshold: — Built to OEM-specified activation temperature so the switch opens and closes at the precise heat level the PS4 motor requires for protection.
- Direct OEM Replacement: — Connects to the existing wiring harness and mounts in the original housing position, matching the factory component exactly.
- Confirmed Fitment: — Verified for the PS4 11003HH 220V/60Hz 15HP submersible pump and the PS4 11003HF 100mm/4in High Output submersible pump.
- Motor Protection Restored: — A functioning thermal switch prevents motor burnout during sustained high-load or overheating conditions — a worn or failed switch leaves the motor without thermal protection, risking permanent damage.
- Electrical Safety Compliance: — As a safety-critical electrical component, using a genuine OEM thermal switch ensures the protective circuit operates within the designed parameters for the pump's rated voltage and amperage.
A thermal switch is a safety device wired into the motor circuit that monitors operating temperature. When the motor reaches an unsafe heat level — caused by overload, restricted flow, or continuous duty operation — the switch opens the circuit and shuts the pump down before damage occurs. Once the motor cools to a safe temperature, the switch closes and allows the pump to restart. A failed thermal switch either allows the motor to overheat unchecked, risking a burned winding, or causes the pump to trip and refuse to run even when temperatures are within safe range.
Part Details
| Part Number | 5000150833 |
|---|---|
| Old Part Number | 0150833 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermal Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PS4 11003HH Sub. Pump, 220V/60hz, 15hp, 38A | PS411003HH | 5000009153 |
| 100mm/4in Submersible Pump 220 V/60Hz High Output | PS411003HF | 5000009156 |
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.
