Siemens Mains Voltage Monitoring Relays

Siemens Brand: Siemens

These relays function as mains voltage monitoring relays, helping to provide optimum protection for machinery and equipment from a variety of electrical faults. The relays can be used without auxiliary voltage within the measured voltage range worldwide thanks to a wide voltage range. The relays are used in mobile equipment, e.g. air conditioning compressors, refrigerating containers, building site compressors and cranes, etc.

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

  • LED or LCD displays
  • Auto reset
  • Removable terminals
Description Image Product Buy Pricing (Ex VAT) Operating Voltage (AC) Type Contact Configuration Dimensions Output Current Temperature Range
Siemens 3UG4511-1BP20 Mains Voltage Monitoring Relay SPDT-CO Analogue
Siemens 3UG4511-1BP20 Mains Voltage Monitoring Relay SPDT-CO Analogue
Standard range
Order code: 64-8852
MPN: 3UG45111BP20

6 in stock, despatched in 4 working days
1+ £125.17
Price per unit Ex VAT 		320 to 500V Mains voltage monitoring relay 2CO 92 x 22.5 x 91mm 3A -25 to +60°C
Siemens 3UG4513-1BR20 Mains Voltage Monitoring Relay DPDT-CO Analogue
Siemens 3UG4513-1BR20 Mains Voltage Monitoring Relay DPDT-CO Analogue
Standard range
Order code: 64-8853
MPN: 3UG45131BR20

2 in stock, despatched in 4 working days
1+ £159.37
Price per unit Ex VAT 		160 to 690V Mains voltage monitoring relay 2CO 92 x 22.5 x 91mm 3A -25 to +60°C
Siemens 3UG4614-1BR20 Mains Voltage Monitoring Relay DPDT-CO Digital
Siemens 3UG4614-1BR20 Mains Voltage Monitoring Relay DPDT-CO Digital
Standard range
Order code: 64-8854
MPN: 3UG46141BR20

3 in stock, despatched in 4 working days
1+ £179.04
Price per unit Ex VAT 		160 to 690V Mains voltage monitoring relay 2CO 92 x 22.5 x 91mm 3A -25 to +60°C
Siemens 3UG4615-1CR20 Mains Voltage Monitoring Relay 2x SPDT-CO Digital
Siemens 3UG4615-1CR20 Mains Voltage Monitoring Relay 2x SPDT-CO Digital
Standard range
Order code: 64-8855
MPN: 3UG46151CR20

2 in stock, despatched in 4 working days
1+ £225.98
Price per unit Ex VAT 		160 to 690V Mains voltage monitoring relay 2CO 92 x 22.5 x 91mm 3A -25 to +60°C
Order code64-885264-885364-885464-8855
Part number3UG4511-1BP203UG4513-1BR203UG4614-1BR203UG4615-1CR20
Main current circuit poles3333
Measurable voltage320 to 500V AC160 to 690V AC160 to 690V AC160 to 690V AC
Contact configuration2CO2CO2CO2CO
Relay output current3A3A3A3A
Ambient temperature-25°C to +60°C-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 91mm92 x 22.5 x 91mm

Order code64-885264-885364-885464-8855
Display versionLEDLEDLCDLCD
Undervoltage detectionNoYesYesYes
Overvoltage detectionNoNoNoYes
Phase sequence recognitionYesYesYesYes
Phase failure detectionNoYesYesYes
Phase unbalanceNoYesYesYes
Overvoltage detection 3 phaseNoNoNoYes
Undervoltage detection 3 phasesNoYesYesYes
Voltage window recognition 3 phaseNoNoNoYes
Auto-resetYesYesYesYes
Adjustable open/closed-circuit current principleNoNoYesYes


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