SJE-Rhombus MilliAmpMaster Wide Angle Float Switch

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SJE-Rhombus Float Control Switch

Mechanically-Activated, Wide-Angle Control Switch

Control switches accurately monitor liquid levels to activate pump control panels and alarms. The SJE MilliAmpMaster control switch is narrow-angle or wide-angle control switch that offers control for AC or DC applications in wastewater and sewage. The internal switching mechanism has seal gold cross-point contacts for reliable low current operation. It features a blue colored cap for easy identification. Common applications include PLC (programmable logic controller) panels, IS panels with intrinsically safe barriers, low current solar applications and other low current control panels and alarm applications. The wide-angle version activates/deactivates at approximately 4 inches above and below horizontal with a 3.5 inch tether. This switch is not sensitive to rotation.

Normally Open Models (high level): The control switch turns on (closes) when the float tips slightly above horizontal signaling a high level and turns off (opens) when the float drops slightly below horizontal.


  • Low current, non-arcing applications down to 0.160 mA at 125 VAC
  • Mechanically-activated, snap action contacts
  • High impact, corrosion resistant polypropylene float housing
  • 10 foot cable
  • UL Listed, CSA Certified
  • Five year limited warranty


CABLE: Flexible 18 gauge, 2 conductor (UL, CSA) SJOW, water-resistant (CPE) jacket

FLOAT: 2.74 inches diameter x 4.83 inches long (7.0 x 12.3 cm) high impact, corrosion resistance, polypropylene housing for use in sewage and water up to 140oF (60oC)

MAXIMUM WATER DEPTH: 30 feet (9 meters), 13 PSI (90 kPa)


  • 125 VAC: 
    • Maximum Electrical Load: 1 amp
    • Minimum Electrical Load: 0.160 milliamps
  • 30 VDC:
    • Maximum Electrical Load: 0.1 amps
    • Minimum Electrical Load: 0.160 milliamps
  • 5 VDC:
    • Minimum Electrical Load: 1 milliamps
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