RBL CMG 539 Burner Control Box is an authentic RBL industrial component (Model/MPN: CMG-539) engineered for continuous factory operations and machinery maintenance in Kenya and across East Africa. Key verified ratings include Controller Model: RBL CMG 539 230V, Manufacturer: RBL / Riello (Italy), Mains Voltage: 220 - 240 V AC 50/60 Hz. Standard plant applications include Riello 40 G3 / G5 / G10 / G20 Diesel Burners, RBL Commercial Oil Burner Assemblies, Hotel & Lodge Central Hot Water Boilers. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
RBL CMG 539 Burner Control Box
RBL CMG 539 Burner Control Box is an authentic RBL industrial component (Model/MPN: CMG-539) engineered for continuous factory operations and machinery maintenance in Kenya and across East Africa. Key verified ratings include Controller Model: RBL CMG 539 230V, Manufacturer: RBL / Riello (Italy), Mains Voltage: 220 - 240 V AC 50/60 Hz. Standard plant applications include Riello 40 G3 / G5 / G10 / G20 Diesel Burners, RBL Commercial Oil Burner Assemblies, Hotel & Lodge Central Hot Water Boilers. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Functional engineering application
The RBL CMG 539 Burner Control Box is an authentic Italian OEM sequence controller manufactured by RBL for Riello forced-draft oil burners. Engineered specifically for single-stage light oil and diesel burners, the CMG 539 controls pre-purge (12s), pre-ignition, and main solenoid valve release while maintaining continuous photo-electric flame supervision. Built with solid-state timing circuitry, high-grade relay contacts, and an illuminated lockout reset button, the CMG 539 ensures instant safety cutoff upon flame failure. It is widely installed in commercial steam boilers, hotel water heaters, and tea drying kilns across Kenya, Uganda, Tanzania, Rwanda, and Burundi.
Microprocessor burner sequence control box RBL CMG 539 for Riello and RBL commercial oil burners operating on light diesel and kerosene.
Quotation & fulfilment
Parametric technical attributes
| RBL CMG-539 | |
| IDENTIFICATION | |
| Component Type | RBL CMG 539 Burner Control Box |
| Manufacturer / Brand | RBL |
| Part Number (MPN) | CMG-539 |
| Stock Keeping Unit (SKU) | RBL-CB-CMG539 |
| TECHNICAL PARAMETERS | |
| Controller Model | RBL CMG 539 230V |
| Manufacturer | RBL / Riello (Italy) |
| Burner Compatibility | Riello 40 G-Series / RBL Light Oil Burners |
| Pre-Purge Time (t1) | 12.0 Seconds |
| Safety Time (t2 max) | 10.0 Seconds |
| Flame Sensor Input | Photocell Photo-resistor (Riello 40 standard) |
| Output Contact Rating | 5 A max per terminal (total 10 A) |
| Lockout Reset | Illuminated Manual Pushbutton |
| Degree of Protection | IP 40 |
| Weight | 0.27 kg |
| PERFORMANCE & RATINGS | |
| Mains Voltage | 220 - 240 V AC 50/60 Hz |
| Power Consumption | 3.0 VA |
| Ambient Temperature | -20 °C to +60 °C |
| COMPLIANCE & STANDARDS | |
| Origin | Italy |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | On request |
System fitment & verified replacements
Interchangeable models
- RBL 552 SE Burner Control Box
- Siemens LOA24.171B2E Burner Control Box
Commonly installed on equipment from
Common questions on this part
The CMG 539 is specifically engineered for Riello 40 G3, G5, G10, and G20 light oil burners.
Available at STARNEX Industrial Spares, SMK Business Center, Enterprise Road, Industrial Area, Nairobi.
Yes, we ship daily across East Africa to Kampala, Jinja, Dar es Salaam, Arusha, Mwanza, Kigali, and Bujumbura.
Yes, RBL is the original component manufacturing brand for Riello forced-draft burners.
The pre-purge period (t1) is pre-set at 12.0 seconds.
It works with standard Riello red/clear photo-resistor flame detectors.
Press the illuminated reset button on the controller faceplate for 1 to 2 seconds.
The safety time limit is 10.0 seconds maximum.
Lockouts are typically caused by dirty photocell lenses, lack of diesel flow, faulty ignition electrodes, or motor failure.
Yes, STARNEX stocks genuine Riello 40 photo-resistor detectors.
Operates on standard 220-240 V AC 50/60 Hz mains power.
Yes, corporate discounts are available for bulk engineering orders.
Yes, counter pickup is available immediately at Enterprise Road.
Yes, we stock RBL burner fuel pumps and assemblies.
Check the nameplate or stamped part number on your existing unit, along with operating parameters (e.g. dimensions, voltage, pressure rating, or connection size). You can share a photo of the nameplate directly via WhatsApp or our Request a Quote form, and our sales desk will confirm technical fitment, lead time, and pricing.
