Overview
The 10MMD1WP pump float switch is a mechanical level control device designed to automatically activate and deactivate sump and effluent pumps based on liquid level. As an SJE MicroMaster model distributed under the CentriPro brand, this 10MMD1WP switch provides reliable on/off control for small to medium-duty pump applications in residential and light commercial settings.
Key Features
- Direct pump control with piggyback plug — no additional relay or contactor required
- 10-amp maximum rating at 120VAC — suitable for single-phase motors up to ~1 HP
- Mechanical design with wide-angle float activation — operates over 70° to 90° arc for reliable switching
- 10-foot cord with standard plug connector for convenient installation and positioning
- Normally Closed (NC) contacts — pump runs when float is raised, stops when lowered
Technical Specifications
- Voltage: 120VAC
- Maximum Amperage: 10 FLA (Full Load Amps)
- Cord Length: 10 feet
- Connector Type: Piggyback plug (standard household outlet compatible)
- Float Type: Mechanical, wide-angle
- Contact Configuration: Normally Closed (NC)
- Shipping Weight: 1 lb
- Material: Industrial-grade plastic and stainless steel components
Typical Applications
- Residential basement sump pump control and water removal
- Septic system basin level monitoring and pump activation
- Crawl space dewatering and moisture control
- Small effluent lift stations in light commercial applications
- Emergency backup pump systems requiring automatic level detection
Compatibility & Replacements
Compatible With
- CentriPro ESP33 submersible pump systems
- Goulds CentriPro sump and effluent pump lines
- Small single-phase AC pump motors (120V, up to 10 amps)
- Standard household electrical outlets (110–120VAC)
- Direct pump wiring — piggyback plug connects pump directly without panel
Replaces / Drop-In Replacement For
- Earlier SJE MicroMaster 10MMD1WP models with identical specifications
- Generic 120V 10-amp sump pump float switches with NC contacts and piggyback connectors
- Verify compatibility with your system integrator or pump documentation before ordering
Works With
- SJE Floatron controller systems
- Xylem/Goulds pump and control equipment
- CentriPro simplex and duplex panel configurations
- Any 120VAC pump motor drawing ≤10 amps at full load






