SJE-Rhombus AmpMaster® Pump Switch Description

Mechanically-Activated, Wide-Angle Pump Switch

The SJE AmpMaster® pump switch provides automatic control of grinder and high head sewage pumps in grinder and lift station applications, as well as septic tank effluent pump (STEP) systems. UL Recognized; CSA Certified.

The SJE AmpMaster® pump switch is not sensitive to rotation or turbulence, allowing it to be used in both calm and turbulent applications. It is available for pump down applications only.

SJE-Rhombus AmpMaster® Pump Switch Typical Application

• Grinder Applications
• High Head Sewage Applications
• Lift Station Applications
• Septic Tank Effluent Pump (STEP) Systems

SJE-Rhombus AmpMaster® Pump Switch Features

• Maximum Pump Running Current of 20 Amps.
• Heavy Duty Contacts Mounted on High-Conductivity Copper Substrates
• Controls Pumps up to 1 1/2 HP at 125 VAC and 3 HP at 250 VAC.
• Second Set of Non-Conductive Contacts Enhance Switch Activation
• For Direct Wiring in 125 VAC or 250 VAC Applications (piggy-back plug model not available).
• Adjustable Pumping Range of 9 to 24 Inches (23 to 61 cm).
• Includes Standard Mounting Clamp and Boxed Packaging
• UL Recognized for use in Non-Potable Water and Sewage
• CSA Certified
• Five-Year Limited Warranty

SJE-Rhombus AmpMaster® Pump Switch Specifications

• CABLE: Flexible 12 Gauge, 2 Conductor (UL, CSA) SJOW, Water-Resistant (CPE)
• FLOAT: 3.05" Diameter x 3.56" Long (7.75 x 9.04 cm) High Impact, Corrosion Resistant, PVC Housing for Use in Sewage and Non-Potable Water up to 120°F (50°C)
• ELECTRICAL: 125 VAC 50/60Hz Single Phase
• Maximum Pump Running Current: 20 Amps
• Maximum Pump Starting Current: 120 Amps
• Recommended Pump HP: 1-1/2 HP or Less
• ELECTRICAL: 250 VAC 50/60Hz Single Phase
• Maximum Pump Running Current: 20 Amps
• Maximum Pump Starting Current: 120 Amps
• Recommended Pump HP: 3 HP or Less
• PIGGYBACK PLUG NOT AVAILABLE

NOTE: This switch must be used with pumps that provide integral thermal overload protection. Certain pump applications may require the use of an external capacitor start kit.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

SJE-Rhombus AmpMaster® Pump Switch Product Resources

SJE-Rhombus AmpMaster® Pump Switch Catalog Page

SJE-Rhombus Super Single Pump Switch Installation Instructions

SJE-Rhombus Mercury Restricted State Map (See next document for mercury alternatives)

SJE-Rhombus Mercury to Mechanical Float Conversion Chart