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Siemens Relay: DIN-Rail Mounted, 5 A Current Rating, 320 to 500V AC - DIN-Rail Mounted Relays
SiemensDIN-Rail Mounted Relays

Siemens Relay: DIN-Rail Mounted, 5 A Current Rating, 320 to 500V AC

The SIEMENS DIN-Rail Mounted Relay (MPN 3UG45112BP20) is a phase sequence monitoring relay with a 5 A current rating and an operating voltage range of 320 to 500V AC. It features 6 pins/terminals and is designed for…

SKU 3G-OTH-38513

Brand
Siemens
Item
Relay: DIN-Rail Mounted, 5 A Current Rating, 320 to 500V AC
Category
DIN-Rail Mounted Relays
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Technical Specifications

Siemens
Manufacturer Part Number
3UG45112BP20
AC
320 to 500V
Current Rating
5 A
Pins/Terminals
6
Monitored Parameters
Phase Sequence
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS DIN-Rail Mounted Relay (MPN 3UG45112BP20) is a phase sequence monitoring relay with a 5 A current rating and an operating voltage range of 320 to 500V AC. It features 6 pins/terminals and is designed for DIN-rail mounting.

Frequently Asked Questions

What is the SIEMENS 3UG45112BP20 relay used for?

The SIEMENS 3UG45112BP20 is a DIN-rail mounted phase sequence monitoring relay. It protects three-phase motors and equipment by detecting incorrect phase rotation or phase loss, preventing damage in industrial applications such as conveyors, pumps, and compressors.

What are the specifications of the SIEMENS 3UG45112BP20?

The SIEMENS 3UG45112BP20 relay has a current rating of 5 A, an operating voltage of 320 to 500V AC, and 6 pins/terminals. It monitors phase sequence and is designed for DIN-rail mounting. The manufacturer part number is 3UG45112BP20.

Where to buy the SIEMENS 3UG45112BP20 worldwide?

3G Electric supplies the SIEMENS 3UG45112BP20 relay to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this phase sequence monitoring relay.

How to install a SIEMENS DIN-rail mounted relay?

To install the SIEMENS 3UG45112BP20, snap it onto a standard DIN rail. Ensure the supply voltage (320 to 500V AC) matches your system. Connect the three-phase lines to the appropriate terminals per the wiring diagram. Always follow local electrical codes and de-energize circuits before installation.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens din-rail mounted relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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