Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Siemens 3UG4511-1AQ20 DIN-Rail Mounted Phase Sequence Monitoring Relay - DIN-Rail Mounted Relays
SiemensDIN-Rail Mounted Relays

Siemens 3UG4511-1AQ20 DIN-Rail Mounted Phase Sequence Monitoring Relay

<p>The Siemens 3UG4511-1AQ20 is a DIN-rail mounted phase sequence monitoring relay designed to protect three-phase systems from incorrect phase rotation. With a current rating of 5 A and an operating voltage range of…

SKU 3G-OTH-38425

Also listed as: 3UG45111AQ20 · 3UG4511 1AQ20

Brand
Siemens
Item
3UG4511-1AQ20 DIN-Rail Mounted Phase Sequence Monitoring Relay
Part Number
3UG4511-1AQ20
Category
DIN-Rail Mounted Relays
Available to Order
Also known as:3UG4511-1AQ20Siemens
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
3UG4511-1AQ20
AC
420 to 690V
Current Rating
5 A
Pins/Terminals
6
Monitored Parameters
Phase Sequence

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The Siemens 3UG4511-1AQ20 is a DIN-rail mounted phase sequence monitoring relay designed to protect three-phase systems from incorrect phase rotation. With a current rating of 5 A and an operating voltage range of 420 to 690 V AC, this relay ensures reliable detection of phase sequence faults in industrial applications. It features 6 terminals for straightforward wiring and is built to Siemens' high standards of quality and durability.</p><p>Ideal for maintenance teams and electrical contractors in Singapore, this relay is essential for safeguarding motors, pumps, and other rotating equipment. As a trusted supplier, 3G Electric offers this Siemens relay with SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia. Contact us for your procurement needs.</p>

Frequently Asked Questions

What is the voltage range and current rating of the Siemens 3UG4511-1AQ20?

The Siemens 3UG4511-1AQ20 operates on AC voltages from 420 to 690 V and has a current rating of 5 A.

Does 3G Electric provide SGD pricing and handle GST for Singapore buyers?

Yes, 3G Electric offers SGD quotes on request and handles GST for Singapore-based buyers. We also provide fast delivery across Singapore and Southeast Asia.

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
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from Siemens

View all Siemens parts
DIN-rail mounted speed monitoring relay with screw terminals. Operates on 24 to 240V AC/DC supply voltage. Adjustable time range from 1 to 900 seconds. Used to monitor rotational speed in industrial machinery, conveyors, and pumps, detecting under-speed or standstill conditions
Siemens
DIN-rail mounted speed monitoring relay with screw terminals. Operates on 24 to 240V AC/DC supply voltage. Adjustable time range from 1 to 900 seconds. Used to monitor rotational speed in industrial machinery, conveyors, and pumps, detecting under-speed or standstill conditions

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first