The Siemens 3UG4632-1AW30 is a SIRIUS voltage monitoring relay with digital setting and an LCD display. It monitors AC/DC systems for overvoltage and undervoltage conditions, with a rated supply voltage range of 24 to 240 V AC/DC and a measurable AC voltage range of 10 to 600 V. The relay provides a changeover contact rated at 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V. It supports both automatic reset and external reset, and includes galvanic isolation between input and output as well as between outputs.
Siemens 3UG4632-1AW30 SIRIUS Voltage Monitoring Relay, 24-24
MPN3UG4632-1AW30
NRND
Siemens SIRIUS 3UG4632-1AW30 voltage monitoring relay, digital setting, LCD display, 24-240 V AC/DC rated supply, 10-600 V AC measuring range, over/undervoltage detection, IP20, snap-on 22.5 mm.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product function | Voltage monitoring relay |
| Product designation | Voltage monitoring relay with digital setting |
| Product line / brand name | SIRIUS |
| Parameter | Value |
|---|---|
| Rated value (50 Hz) | 24 ... 240 V |
| Rated value (60 Hz) | 24 ... 240 V |
| Parameter | Value |
|---|---|
| Electrical connection type | screw-type terminals |
| Parameter | Value |
|---|---|
| Ingress protection (IP rating), wired | IP20 |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Fastening method | snap-on mounting |
| Mounting position | any |
| Width | 22.5 mm |
| Height | 92 mm |
| Depth | 91 mm |
| Conductor cross-section, solid | 20 ... 14 |
| Conductor cross-section, finely stranded (with ferrule) | 0.5 ... 2.5 mm² |
| Mounting clearance, top | 0 mm |
| Mounting clearance, rear | 0 mm |
| Mounting clearance, side | 0 mm |
| Mounting clearance, front | 0 mm |
Product details
Frequently asked questions
What is the rated supply voltage range?
The rated supply voltage is 24 to 240 V AC/DC, with the same range at both 50 Hz and 60 Hz.
What voltage range can it measure?
It can measure AC voltage from 10 to 600 V.
Does it detect both overvoltage and undervoltage?
Yes, it has both overvoltage detection and undervoltage detection functions.
What is the physical size and mounting?
Width is 22.5 mm, height 92 mm, depth 91 mm. It snaps onto a DIN rail (snap-on mounting) and can be mounted in any position.
MPN
3UG4632-1AW30