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Siemens Cell QRB1B-D042B20B - Burner Controls
SiemensBurner Controls

Siemens Cell QRB1B-D042B20B

The Siemens Cell QRB1B-D042B20B is a photoresistor-based burner control for oil burner flame monitoring in small power burners, supplied with two-wire thermoplastic cable and bracket mounting (21 mm or 36 mm hole…

SKU 3G-CBM-05786

Brand
Siemens
Item
Cell QRB1B-D042B20B
Category
Burner Controls
UNSPSC
40101833 — Boiler or heater igniter
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Model
QRB1B-D042B20B
cable type
Two-wire thermoplastic
application
Oil burner flame monitoring for small power burners
sensor type
Photoresistor (flame sensor)
target audience
OEM integration
mounting options
Bracket mounting (with or without soft plastic sleeve)
iso certifications
ISO 9001:2000, ISO 14001:1996
reference document
CC1N7714fr, dated 08.2003
compliance standards
89/336/CEE (EMC Directive)
maintenance cleaning
Clean cloth only (do not use burner sprays)
response sensitivity
Normal or elevated
certification numbers
00739, 38233
compatible control units
LAL..., LOA..., LMO... safety control units
flame detection spectrum
Visible spectrum (yellow oil flame)
cable routing requirement
Separate from other cables, especially ignition cables
signal measurement method
Probe current measurement (microamperes)
bracket hole spacing options
21 mm, 36 mm
maintenance personnel requirement
Qualified personnel only
installation personnel requirement
Qualified personnel only
commissioning personnel requirement
Qualified personnel only
protection against mechanical damage
Not to be returned to service after drop or impact
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens Cell QRB1B-D042B20B is a photoresistor-based burner control for oil burner flame monitoring in small power burners, supplied with two-wire thermoplastic cable and bracket mounting (21 mm or 36 mm hole spacing options). Designed for OEM integration with LAL..., LOA..., and LMO... safety control units, it detects visible spectrum yellow oil flame and measures probe current in microamperes, with selectable normal or elevated response sensitivity. The unit complies with ISO 9001:2000, ISO 14001:1996, and 89/336/CEE (EMC Directive), and requires qualified personnel for installation, commissioning, and maintenance; cable must route separately from ignition cables and cleaning is by cloth only. 3G Electric sources and stocks this product for delivery across Singapore and Southeast Asia.

Frequently Asked Questions

Where can I buy the Siemens QRB1B-D042B20B burner control in your region?

3G Electric stocks and supplies the Siemens QRB1B-D042B20B for OEM integration and field replacement. We handle delivery to your location, your location, and CALABARZON logistics, plus customs documentation. Contact us for availability and lead time on request.

What is the lead time for the Siemens QRB1B-D042B20B?

Lead time for the Siemens QRB1B-D042B20B is confirmed upon order. 3G Electric manages import documentation and customs clearance to your region, ensuring smooth delivery to your facility.

Is the Siemens QRB1B-D042B20B compatible with small power oil burners?

Yes. The QRB1B-D042B20B is a photoresistor-based flame sensor designed for small power oil burners. It features two-wire thermoplastic cable, bracket mounting with 21 mm or 36 mm hole spacing options, and integrates with LAL, LOA, and LMO safety controllers.

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
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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.

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