The Wacker Neuson Motor Protection Switch is a genuine OEM component designed for the PST3750 and PSTF3750 submersible pump series. Sourced directly from Wacker Neuson, this part matches the original specification for a drop-in replacement with no guesswork. It is engineered to protect the pump motor from overload and fault conditions, keeping your equipment operating within safe electrical parameters. Verify your model number before ordering — this switch fits the PST3 750 and PSTF3 750 submersible pumps running at 220V/60Hz with a 4.7A draw.
Key Features
- Genuine OEM Electrical Specification — Matched to the exact amperage rating and trip threshold of the original switch, ensuring the motor protection circuit functions as Wacker Neuson intended.
- Direct-Mount Replacement — Installs into the same mounting position as the factory switch, connecting to the existing wiring harness without modification to the pump housing or electrical leads.
- Confirmed Fitment — Compatible with the PST3750 (Part 5000620337) and PSTF3750 (Part 5000620338) submersible pump models rated at 220V/60Hz, 1 hp, with a 33-foot cord.
- Motor Overload Defense — A correctly functioning motor protection switch trips under overload or fault conditions, preventing winding burnout and costly motor damage that can take a pump out of service entirely.
- Electrical Safety Critical Component — Motor protection switches are a core safety component in submersible pump circuits. Using the correct OEM-rated switch ensures the trip threshold matches the motor's design limits, protecting both the equipment and the operator.
A motor protection switch monitors the electrical current drawn by the pump motor and automatically interrupts power if the current exceeds a safe threshold — a condition typically caused by a blocked impeller, a seized bearing, or a voltage irregularity. Without a properly functioning switch, an overloaded motor continues to draw excess current, generating heat that can destroy the motor windings and render the pump unserviceable. Replacing a worn or tripped-but-damaged switch with a correctly rated OEM part restores the full protective function of the circuit and safeguards the pump during demanding dewatering or site drainage applications.
Part Details
| Part Number | 5200012413 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Motor Protection Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PST3 750 Sub. Pump, 220V/60hz, 1hp, 33' Cord, 4.7A | PST3750 | 5000620337 |
| PSTF3 750 Sub. Pump, 220V/60hz, 1hp, 33' Cord, 4.7A | PSTF3750 | 5000620338 |
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.
