Technical Specifications Adjustable speed range: 100–1000 rpm; supply voltage: 24 V DC nominal; SPDT output contact, 5 A resistive at 250 V AC, 3 A at 30 V DC; setpoint accuracy: ±1% of full scale; operating temperature: -40°C to +85°C; IP54 enclosure rating; vibration resistance: 10 g peak, 10–2000 Hz.
Functional Features Field-adjustable speed setpoint via locking screw; SPDT contact for alarm and trip circuits; positive speed detection via magnetic pickup; reverse polarity protection; rugged vibration-resistant design; tamper-resistant setpoint adjustment.
Application Scenarios Diesel and gas engine overspeed protection, pump and compressor underspeed monitoring, generator set speed interlock, conveyor drive speed fault detection, industrial rotating machinery safety.
Performance Parameters Trip response time: < 40 ms at setpoint; repeatability: ±0.5% of setpoint; stable operation across temperature and vibration; long electrical contact life > 100,000 operations.
Material Composition Die-cast aluminum alloy housing, copper wound sensing coil, silver cadmium oxide relay contacts, steel adjustment mechanism, nitrile cable seal, stainless steel mounting studs.
Structural Characteristics Cylindrical enclosure; front setpoint adjustment screw with locknut; side cable gland entry; dual stud mounting configuration; sealed internal contact chamber.
Working Principle When the speed crosses the adjustable setpoint threshold, the internal relay changes contact state to trigger alarm, shutdown or interlock circuits.
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