Fail-Safe Rotary Level Switch Controlfail safe rotary switches

ATEX Approved



Reliable, point level switch detection for bulk solids including powder, pellet and granular materials. For use in bins, vessels, chutes and conveyors with a material density from 2 lbs./cu.ft. to over 100 lbs./cu.ft. Suitable for feed, seed, grain, food, sand, gravel, concrete, aggregate, plastic, chemical, coal, and other materials.



The Fail-Safe rotary level switch circuitry eliminates spills and process shortages from power failures, motor or gear failures. Visual LED indicates sensor status: uncovered, covered and fault conditions. Normal and fault status contact. A three bearing drive shaft assembly reduces wear and increases reliability with a de-energizing motor for extended operation life. It is interchangeable with other rotary units and has an internal, bi-directional clutch.



MAXIMA+ Fail Safe Rotary Level Switch
Input Voltage: Multiple 24/120/240 VAC or 24 VDC
Output Rating: DPDT 10 Amp 250 VAC, SPDT Supervisory SPDT 10 Amp 250 VAC/ Normal, Fault
Operating Temperature: -40°F to +158°F, (-40°C to +70°C)
Process Temperature: to 400°F, (to +204°C)
Pressure: 1/2 Micron, 30 PSI
Approvals: Listed for Class 1, Groups C & D and Class II, Groups E, F & G Hazardous Locations.
ATEX – Ex & CE Ex II 1D Ex tD A20 IP66 T93C(ta = -20°C to +85°C)
Fail-Safe Mode: Switch selectable between High & Low
Time Delay: Dual Independent Time DelaySelectable 5 seconds; Programmable to 25 seconds
Enclosure Material: Die Cast Aluminium, USDA approved powder coat finish
LED Indicator: Normal, Fault, Failure status monitoring
Mounting: 1 1/4″ NPT
Conduit Connection: 3/4″ NPT
Shaft Material: Stainless Steel
Paddles: 316 Stainless Steel or Polyethylene

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