Monitors & Monitoring Relays

Altech Monitors and Monitoring Relays are available in various configurations, including energy monitors, current monitor relays, and voltage monitoring relays. The energy monitors offer a range of functions, including line-to-neutral voltage measurement, current measurement, reactive energy measurement, active energy measurement, and power factor measurement. These energy monitors feature a one- and three-phase universal energy meter, a voltage rating of up to 277VAC, one digital input, and two digital outputs. Current monitor relays detect current anomalies on the line side, and the overcurrent relay trips when a current rise is detected above a particular set point. The voltage monitoring relays are connected to the line side of equipment and are sensitive to abnormal conditions that may occur in various ways. These voltage relays from Altech trip when sensing both undervoltage and overvoltage conditions, helping prevent equipment failure. 

All Results (12)

Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Altech Industrial Relays Monitoring Relay, Current, 1 Phase, 5A 10In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Monitoring Relay, Current, 3 Phase, 5A 10In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Monitoring Relay, Volt, 3 phase, 30/60/300VAC/DC 10In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Monitoring Relay, Phase Loss, 3 phase, 480/277V AC 14In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Monitoring Relay, Volt, 1 phase, 24VAC/ DC, 230VAC 9In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Fan Monitoring & Control Relay 2 Channel 5In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Fan Monitoring & Control Relay 4 Channel 5In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Voltage Protection Relay, Digital, 280-600VAC 10In Stock
Min.: 1
Mult.: 1
Altech Power Analyzers ALsense Energy Monitor, V, A, kWh, Hz 5In Stock
Min.: 1
Mult.: 1
Altech Power Analyzers Modbus Montior 5In Stock
Min.: 1
Mult.: 1
Altech Industrial Relays Monitoring Relay, Undervoltage, 3 phase, 180-690V 10In Stock
Min.: 1
Mult.: 1
Altech Terminal Block Interface Modules Fan Failure Module
7Expected 2026-02-26
Min.: 1
Mult.: 1