Siemens Digital Single Phase Voltage Monitoring Relays

Siemens Brand: Siemens

A range of digital relays that function as voltage monitoring relays for single-phase AC and DC voltages against a set threshold for overshoot and undershoot.

Typical applications for these devices include: protection of plant against destruction due to overvoltage, switch-on of plant at a defined voltage and higher, protection against overloaded supply voltages, particularly with battery power, threshold switch for analogue signals from 0.1 to 10 V.

For details on the functions covered by each relay, please see the Technical Specification.

  • LCD displays
  • Adjustable overshoot, undershoot or range monitoring
  • Freely configurable delay times and RESET response
  • Width 22.5 mm
  • Display of ACTUAL value and status messages
  • Screw terminals
Description Image Product Buy Pricing (Ex VAT) Operating Voltage (AC) Type Contact Configuration Dimensions Temperature Range
Siemens 3UG4631-1AW30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Siemens 3UG4631-1AW30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Standard range
Order code: 64-8856
MPN: 3UG46311AW30

4 in stock, despatched in 4 working days
1+ £168.12
Price per unit Ex VAT 		0.1 to 60V Voltage monitoring relay 1CO 92 x 22.5 x 91mm -25 to +60°C
Siemens 3UG4632-1AA30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Siemens 3UG4632-1AA30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Standard range
Order code: 64-8857
MPN: 3UG46321AA30

2 in stock, despatched in 4 working days
1+ £152.11
Price per unit Ex VAT 		10 to 600V Voltage monitoring relay 1CO 92 x 22.5 x 91mm -25 to +60°C
Siemens 3UG4632-1AW30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Siemens 3UG4632-1AW30 Single Phase Voltage Monitoring Relay Digital SPDT-CO
Extended range
Order code: 64-8858
MPN: 3UG46321AW30

Available to back orderBack order, lead time 11 days
1+ £168.12
Price per unit Ex VAT 		10 to 600VV Voltage monitoring relay 1CO 92 x 22.5 x 91mm -25 to +60°C
Order code64-885664-885764-8858
Part number3UG4631-1AW303UG4632-1AA303UG4632-1AW30
Main current circuit poles111
Measurable voltage0.1 to 60V AC10 to 600V AC10 to 600V AC
Contact configuration1CO1CO1CO
Control supply voltage24 to 240V AC/DC24V AC/DC24 to 240V AC/DC
Consumed active power2W2W2W
Ambient temperature-25°C to +60°C-25°C to +60°C-25°C to +60°C
Dimensions92 x 22.5 x 91mm92 x 22.5 x 91mm92 x 22.5 x 91mm

Order code64-885664-885764-8858
Display versionLCDLCDLCD
Voltage window recognition 1-phaseYesYesYes
Voltage window recognition 3 phaseNoNoNo
Voltage window recognition DCYesYesYes
Overvoltage detection 1- phaseYesYesYes
Overvoltage detection 3-phaseNoNoNo
Overvoltage detection DCYesYesYes
Undervoltage detection 1-phaseYesYesYes
Undervoltage detection 3-phaseNoNoNo
Undervoltage detection DCYesYesYes
External resetYesYesYes
Auto-resetYesYesYes
Adjustable open/closed-circuit current principleYesYesYes


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