Hydraulic Institute

SJE-Rhombus® Corporate Profile

Since 1975, SJE - Rhombus Controls has built a reputation as a world leader providing innovative water and wastewater pump controls and custom electronics for residential, commercial, industrial and municipal applications. SJE Rhombus distributes products through a growing network that consists of over 1400 distributors worldwide. SJE Rhombus control panels and embedded controllers effectively control pumps and motor loads. The alarm systems warn of threatening liquid levels and their switches control a variety of water and wastewater pumps and accurately monitor liquid levels. SJE Rhombus also offers custom control panels designed specifically for customer’s applications. Each panel carries Underwriter’s Laboratory safety certification for enclosed industrial control panel (UL 508) or enclosed industrial control panel relating to hazardous locations with intrinsically safe circuit extensions (UL 698A). SJE Rhombus is 100% employee owned through an Employee Stock Ownership Trust. To learn more about SJE Rhombus please visit

  • Market Profile
    • Hospital & Healthcare
    • Marine Industry
    • Building Industry (includes HVAC)
    • Petroleum - Transportation
    • Petroleum - Distribution
    • Wastewater Utility
    • Water Utility
    • Agriculture
    • Export
  • Product Profile
    • Field Service/Installation
    • Conditioning monitoring equipment
    • Drives
    • Control centers
    • Load centers
    • Panels
    • Switches
    • Switchgear
    • Alarms
  • Trade Names
    • SJE Pumpmaster® Pump Switch
    • SJE Pumpmaster® Plus Pump Switch
    • SJE Pumpmaster® SPDT Pump Switch
    • SJE Signalmaster® Control Switch
    • Installer Friendly Series TM (IFS) Control Panels
    • SJE Signalmaster® SPDT Control Switch
    • Build-A-Panel TM control panels
    • SJE Verticalmaster® Pump Switch
    • Double Float® Pump Switch
    • Super Single® Pump Switch
    • Junior Super Single ® Pump Switch
    • Tank Alert® AB Alarm System
    • Sensor Float® Control Switch
    • Tank Alert® I Alarm System
    • Sensor Float® Mini Control Switch
    • Tank Alert® XT Alarm System
    • SJE Micromaster® Pump Switch
    • Tank Alert ® 4X Alarm System
    • SJE Micromaster® Plus Pump Switch
    • PS Patrol TM System
    • SJE Micromaster® SPDT Pump Switch
    • Primex
    • SJE Micromaster® AC/DC Pump Switch
    • SJE Milliampmaster TM Control Switch
    • SJE Ampmaster® Pump Switch


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