
Siemens 3UG4631-1AA30
MPN3UG4631-1AA30
NRND
Digital monitoring relay Voltage monitoring, 22.5 mm from 0.1-60 V AC/DC 0vershoot and undershoot Supply voltage: 24 V AC/DC 50 to 60 Hz DC and AC without galvanic isolation to measuring circuit Noise pulses delay 0.1 to 20 s Hysteresis 0.1 to 30 V 1 change-over contact with or without fault buffer screw terminal Successor product for 3UG3531-1AC..
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product function | Voltage monitoring relay |
| Product designation | Voltage monitoring relay with digital setting |
| Product line / brand name | SIRIUS |
Electrical
| Parameter | Value |
|---|---|
| Rated value (50 Hz) | 24 V |
| Rated value (60 Hz) | 24 V |
Communication
| Parameter | Value |
|---|---|
| Electrical connection type | screw-type terminals |
Environmental
| Parameter | Value |
|---|---|
| Ingress protection (IP rating), wired | IP20 |
| Installation altitude, max. | 2 000 m |
Mechanical
| 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 |
MPN
3UG4631-1AA30