Siemens Relay LDU 11 523A27
Siemens LDU 11 523A27 is a burner control relay for industrial combustion systems, rated 220V to 240V AC with 2.5 VA~ operating power consumption. Features internal fuse T6.3H250V and supports any mounting position…
SKU 3G-CBM-05833
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
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Product Description
Siemens LDU 11 523A27 is a burner control relay for industrial combustion systems, rated 220V to 240V AC with 2.5 VA~ operating power consumption. Features internal fuse T6.3H250V and supports any mounting position, fitting OEM and retrofit applications.
Frequently Asked Questions
What is the Siemens LDU11 523A27 used for?
The Siemens LDU11 523A27 is a burner control relay used for automatic leak testing of gas safety shut-off valves in industrial combustion systems. It verifies valve tightness before burner startup, during pre-ventilation, or after shutdown, preventing burner operation if abnormal leakage is detected.
What are the specifications of the Siemens LDU11 523A27?
The Siemens LDU11 523A27 operates on 220V~ to 240V~ AC supply with 2.5 VA~ power consumption during operation. It includes an internal T6.3H250V fuse per DIN EN 60127, supports any mounting position, and requires a maximum 10A slow external fuse. It is designed for EN 1643 and EN 161 applications.
Where to buy the Siemens LDU11 523A27 in Singapore?
You can source the Siemens LDU11 523A27 burner control relay from 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility, providing technical support for OEM and retrofit combustion applications. Contact us for availability and lead time.
How to install the Siemens LDU11 523A27?
Install the Siemens LDU11 523A27 in any mounting position as it supports all orientations. Connect the supply voltage (220V~ to 240V~ AC) and ensure the external fuse does not exceed 10A slow. Follow the manufacturer's wiring diagram for leak testing with pressure switches, and verify the pre-ventilation time is at least 60 seconds if used during that phase.
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3G Electric supplies Siemens burner controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
