The Wacker Neuson Thermal Switch is a genuine OEM component designed for the PS35503 75mm/3in and PS45503 100mm/4in submersible pumps. Sourced directly from Wacker Neuson, this switch matches the original specification for a drop-in replacement with no guesswork on compatibility. It is engineered to the exact thermal trip thresholds required for safe motor protection in 575V/60Hz pump configurations. If your submersible pump is overheating, cycling unexpectedly, or failing to restart after a thermal event, the is the correct service part to restore proper operation.
Key Features
- Calibrated Thermal Protection: — Matched to the original trip rating for PS-series 575V/60Hz submersible pump motors, ensuring the switch opens and resets at the correct temperature thresholds.
- Genuine OEM Part: — Supplied by Wacker Neuson as a factory replacement, carrying the same part number and specification as the unit installed at the time of manufacture.
- Confirmed Fitment: — Directly compatible with the PS35503 75mm/3in Submersible Pump and PS45503 100mm/4in Submersible Pump, both in 575V/60Hz configuration.
- Motor Overtemperature Defense: — A functioning thermal switch cuts power before winding damage can occur; a failed or bypassed switch leaves the motor vulnerable to burnout under sustained overload or dry-run conditions.
- Electrical Safety Critical: — As a primary protective device in a high-voltage submersible application, using the correct OEM-rated switch is essential to maintain safe electrical operation and protect connected equipment.
A thermal switch is a temperature-sensitive safety device wired into the motor circuit of a submersible pump. When the motor temperature climbs beyond a safe operating threshold — caused by overloading, restricted flow, or running dry — the switch opens the circuit and cuts power, preventing heat damage to the motor windings. Once the motor cools to a safe level, the switch resets and allows the pump to restart. A faulty thermal switch can cause nuisance shutdowns, failure to restart, or — if it loses the ability to open — allow a motor to overheat and fail entirely.
Part Details
| Part Number | 5000150582 |
|---|---|
| Old Part Number | 0150582 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermal Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 75mm/3in Submersible Pump 575V /60Hz | PS35503 | 5000009143 |
| 100mm/4in Submersible Pump 575 V/60Hz | PS45503 | 5000009146 |
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.
