Schneider Electric Voltage Monitoring Relay With DPDT Contacts, 3 Phase, 120 → 277 V ac

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): FR
Product Details

RM17 UB3 and RM35 UB3 Three-Phase Voltage Control Relay

Schneider Electric RM17/35 UB measurement and control relays for 3 phase supplies, monitor correct sequences of phases L1, L2 and L3. It also monitors total loss of one or more phases, asymmetry, and over and undervoltage with independent adjustments. In the event of voltage fault, the relay opens at the end of the time delay set by the user, if the device is switched on with a measured fault, the relay remains open. In the event of loss of neutral or a phase sequence, the relay opens instantly.

Checks its own power supply
Clear hinged front cover
Potentiometer selects voltages between phases
LED display of output status
DIN Rail mounting


NF EN 60255-6 and IEC 60255-6



Schneider Electric Voltage, Current, Phase & Motor Protection

Attribute Value
Monitoring Application Voltage
Supply Voltage 120 → 277 V ac
Contact Configuration DPDT
Voltage Sensitivity Absence of Neutral, Overvoltage and Undervoltage Between Neutral, Overvoltage and Undervoltage Between Phase
Electrical Phase 3
Voltage Sensing Range 114 → 329 V ac
Time Delay 0.3 → 30 s
Dimensions 72 x 35 x 90 mm
Length 72mm
Width 35mm
Operating Temperature Range -20 → +50 °C
Maximum Voltage Sensed 329V ac
Minimum Operating Temperature -20°C
Minimum Voltage Sensed 114 V ac
Height 90mm
Maximum Operating Temperature +50°C
4 Within 4 working day(s) (Global stock)
5 Within 4 working day(s) (Global stock)
Price Each
MYR 864.12
Per unit
1 +