The Multiquip 0203020B1446 Auto-Cut Protector is a genuine OEM component designed for ST3020B1 and ST3020BCUL submersible pumps. Sourced directly from Multiquip, this part meets the exact specifications of the original component installed at the factory. It is a direct-fit replacement for ST3020B1 and ST3020BCUL units, ensuring proper integration with the pump's overload protection system. DHS Equipment stocks genuine Multiquip OEM parts to keep your equipment operating to its original design standard.
Key Features
- Genuine OEM Overload Protection Spec — Manufactured to the exact electrical trip and thermal rating of the original auto-cut protector, ensuring the pump's protection circuit responds correctly under overload conditions.
- Direct-Fit Installation — Engineered to connect directly into the existing wiring and mounting position on ST3020B1 and ST3020BCUL submersible pumps without modification.
- Confirmed Fitment — Verified for use with ST3020B1 and ST3020BCUL Multiquip submersible pump models.
- Protects Motor Integrity — A functioning auto-cut protector shuts the pump down automatically when current draw exceeds safe limits, preventing motor burnout and costly internal damage.
- Electrical Safety Compliance — As an overload protection component in a submersible pump, correct specification and function are critical to safe electrical operation in wet environments. Using a genuine OEM part ensures the protection threshold remains within design limits.
The auto-cut protector is a thermal or current-sensing safety device integrated into the submersible pump's electrical circuit. Its role is to automatically interrupt power to the motor when it detects an overload condition — such as a seized impeller, voltage irregularity, or excessive heat buildup — before permanent damage can occur. When this component fails or degrades, the pump loses its primary line of defense against motor burnout, which can result in complete motor failure and submersion-related electrical hazards.
Have questions about fitment or need help confirming the right part for your pump? Contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 0203020B1446 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Auto-Cut Protector |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST3020B1 |
| Submersible Pumps | ST3020BCUL |
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.
