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 Relay LMO 64 300.C2 - Burner Controls
SiemensBurner Controls

Siemens Relay LMO 64 300.C2

The Siemens LMO 64 300.C2 is a burner control relay for industrial combustion systems, rated at 230 V~ with a 5 second ignition delay and maximum fuel flow capacity of 30 kg/h. It supports dual flame monitoring via…

SKU 3G-CBM-05775

Brand
Siemens
Item
Relay LMO 64 300.C2
Part Number
300C2
Category
Burner Controls
UNSPSC
40101833 — Boiler or heater igniter
Available to Order
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
300C2
voltage
230 V~
max fuel flow
30 kg/h
ignition delay
5s
flame monitoring
photometric resistance (QRB) or blue flame probe (QRC)

Technical Documents

(1)
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

The Siemens LMO 64 300.C2 is a burner control relay for industrial combustion systems, rated at 230 V~ with a 5 second ignition delay and maximum fuel flow capacity of 30 kg/h. It supports dual flame monitoring via photometric resistance or blue flame probe, serving heating and process combustion applications.

Frequently Asked Questions

What is the Siemens LMO 64 300.C2 burner control relay used for?

The Siemens LMO 64 300.C2 is a burner control relay for industrial combustion systems. It controls and monitors forced-draught oil burners in intermittent operation, supporting dual flame monitoring via photometric resistance (QRB) for yellow flame or blue flame probe (QRC) for blue flame applications.

What are the specifications of the Siemens LMO 64 300.C2?

The Siemens LMO 64 300.C2 operates at 230 V~ with a maximum fuel flow capacity of 30 kg/h and a 5-second ignition delay. It features flame monitoring via photometric resistance (QRB) or blue flame probe (QRC), remote electrical reset, and under-voltage detection. It is designed for intermittent operation per EN 267 and EN 230.

Where to buy the Siemens LMO 64 300.C2 in Singapore?

You can source the Siemens LMO 64 300.C2 through 3G Electric in Singapore. We supply this burner control relay and handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this Siemens combustion component.

How to install the Siemens LMO 64 300.C2 burner control?

Installation must be performed by qualified personnel only. Disconnect all power before working near terminals. Do not open the device. Use only manual force (≤10 N) on the reset button without tools. Ensure correct wiring and proper contact protection. After a drop or impact, do not recommission the unit as safety functions may be compromised.

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 burner controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Gas Trains & Valves Ignition Transformers Burner Controls Spare Parts All Products

More from Siemens

View all Siemens parts
Cell QRB1A-A068B70B
Siemens
Cell QRB1A-A068B70B
Adapter KF8896
Siemens
Adapter KF8896
Relay LAL 2.14
Siemens
Relay LAL 2.14
Cell QRB1A-A150B70A
Siemens
Cell QRB1A-A150B70A
Relay LFL 1.335 110V
Siemens
Relay LFL 1.335 110V
Relay LFL 1.333
Siemens
Relay LFL 1.333
Siemens
Siemens
Flange for QRB1 (A)
Relay LFL 1.322
Siemens
Relay LFL 1.322

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first