The 3UG3013-1BS60: The 460-660 V AC range covers common 480 V and 575 V three-phase systems without needing a separate potential transformer — it monitors line-to-line voltage directly. Undervoltage detection means it trips the output contacts when any phase drops below a set threshold, protecting motors and sensitive loads from brownout conditions. The two changeover contacts (2 C/O) give you one contact to drop the main contactor and another for a remote alarm or PLC input.
Siemens 3UG3013-1BS60 SIRIUS monitoring relay, 3-phase volta
MPN3UG3013-1BS60
Siemens SIRIUS 3UG3013-1BS60 discontinued 3-phase voltage monitoring relay, 45mm, undervoltage detection, 2 changeover contacts, AC 460-660V 50/60Hz, screw connection.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product line / brand name | SIRIUS |
| Parameter | Value |
|---|---|
| Reference code acc. to IEC 81346-2 | K |
Product details
Frequently asked questions
What replaces the 3UG3013-1BS60?
The official replacement is the 3UG4513-1BR20. That unit is a newer-generation SIRIUS monitoring relay with the same 45 mm form factor and screw terminals, but with a wider voltage range and additional monitoring functions.
MPN
3UG3013-1BS60