The Wacker Neuson Thermal Switch is a genuine OEM component designed for the PS3 5503 and PS4 5503 submersible pumps. As a direct OEM replacement sourced through authorized Wacker Neuson supply channels, this part meets the exact specification of the original component installed at the factory. Compatible with the 220V/60Hz, 7.5hp submersible pump variants in the PS3 and PS4 series, the is the correct choice when restoring your pump's thermal protection system to full working order.
Key Features
- Genuine OEM Thermal Accuracy — Calibrated to the correct trip temperature for Wacker Neuson submersible pump motors, ensuring the switch opens and closes at the precise threshold the motor is designed to operate within.
- Drop-In Replacement — Matches the original switch's electrical terminals and housing profile, allowing straightforward installation without modification to wiring or mounting.
- PS3 and PS4 Series Compatibility — Verified fitment for the PS3 5503 and PS4 5503 submersible pump models operating on 220V/60Hz, 7.5hp configurations.
- Motor Protection Restored — A functioning thermal switch automatically interrupts power when the motor reaches unsafe temperatures, preventing burnout. A failed switch leaves the motor unprotected against thermal overload.
- Electrical Safety Compliance — Thermal protection is a critical safety circuit in submersible pump motors. Using a correctly rated OEM switch ensures the protection system performs as the motor manufacturer intended.
A thermal switch is a temperature-sensitive electrical component that monitors the heat level inside a submersible pump motor. When the motor temperature rises beyond a safe threshold — due to overloading, blocked flow, or extended run time — the switch opens the circuit and cuts power, protecting the motor windings from heat damage. Once the motor cools to a safe level, the switch resets and allows normal operation to resume. When the thermal switch fails or becomes stuck open or closed, the pump may either shut down unexpectedly during normal use or, more critically, continue running without any thermal protection, risking permanent motor damage.
Part Details
| Part Number | 5000150564 |
|---|---|
| Old Part Number | 0150564 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermal Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PS3 5503 Sub. Pump, 220V/60hz, 7.5hp, 19.5A | PS35503 | 5000009141 |
| PS4 5503 Sub. Pump, 220V/60hz, 7.5hp, 19.5A | PS45503 | 5000009144 |
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.
