SJE-Rhombus SES Controls Float Switches

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SJE MegaMaster™

Mechanically-Activated, Internally Weighted Control Switch

Mechanically-Activated, narrow-angle municipal float switched designed for level control of municipal wastewater pumping stations.

 The SJE MegaMaster™ is a mechanically-activated, narrow-angle, internally weighted float switch designed for level control in municipal sewage pumping stations.  The internal switching mechanism contains unique gold cross-point contacts, providing precision and reliable control signals up to 1 amp.

The SJE MegaMaster™ control switch can be wired to work in either normally open or normally closed applications.  It 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. 

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


SJE MegaMaster™


  • Internally weighted
  • 3 wire cable - SPDT (Single Pole, Double Throw) can be wired as normally open or normally closed.  Wire color: Common (white), N.O. (black), N.C. (red)
  • Large twin wall tear drop shape design offers increased buoyancy
  • Two-color housing allows for easy identification of float position
  • Unique gold cross-point contacts provide precision and reliable control signals up to 1 amp
  • Excellent solution for applications with high grease content


  • CE Certified unit upon request
  • With float bracket
  • In standard cable lengths of 25, 50, 75 or 100 feet (approx. 7, 15, 22, or 30 meters)

CSA Certified

Five-Year Limited Warranty



SJE MegaMaster™


CABLE: flexible 18 gauge, 3 conductor (UL) SJOW, water-resistant (CPE)

FLOAT: 4.03 inch diameter x 6.62 inch long (10.2 x 16.8 cm) high impact, corrosion resistant, polypropylene housing for use in sewage and water up to 140oF (60oC)

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

Maximum Electrical Load: 1 amp, 125 VAC
Minimum Electrical Load: 1 mA, 4 VDC

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