SMK Business Center · Enterprise Road, NairobiEnterprise Rd, Nairobi
+254 740 459 672sales@starnexindustrialspares.comEmail
STARNEX Industrial Spares Ltd
STARNEX Industrial Spares Ltd
Products
Categories
Brands
ResourcesBlog
Home/Products/Controllers, Indicators & Test Equipment/CMG-539
MPNCMG-539
SKURBL-CB-CMG539
Direct answer

RBL CMG 539 Burner Control Box is an industrial spare component used for Riello 40 G3 / G5 / G10 / G20 Diesel Burners. STARNEX Industrial Spares supplies and sources RBL spare parts for maintenance engineers, plant operators, and procurement teams in Kenya and East Africa. Before ordering, verify the manufacturer part number (MPN), voltage/pressure specifications, and equipment compatibility.

Brand:RBL
STARNEX SKU:RBL-CB-CMG539
Availability:Counter Stock (Nairobi)
Request QuoteWhatsApp Support
RBL CMG 539 Burner Control Box for riello 40 g3 / g5 / g10 / g20 diesel burners
Tap to zoom
Verified technical component photograph
RBL · Controllers, Indicators & Test Equipment

RBL CMG 539 Burner Control Box

In stock·Enterprise Road, Nairobi Industrial Area·Same-day Nairobi dispatch
Direct answer

RBL CMG 539 Burner Control Box is an industrial spare component used for Riello 40 G3 / G5 / G10 / G20 Diesel Burners. STARNEX Industrial Spares supplies and sources RBL spare parts for maintenance engineers, plant operators, and procurement teams in Kenya and East Africa. Before ordering, verify the manufacturer part number (MPN), voltage/pressure specifications, and equipment compatibility.

Brand:RBL
STARNEX SKU:RBL-CB-CMG539
Availability:Counter Stock (Nairobi)
Request QuoteWhatsApp Support
Request E-TIMS tax invoice quote
WhatsAppCall salesEmail sales
Official KRA E-TIMS tax invoice includedGenuine supply verification available
Not sure this is the right part?Send a clear photo of your existing part or nameplate and our technical team will confirm the exact replacement spec.
Send part photo
Nairobi counter stock
01 · Technical overview

Functional engineering application

The RBL CMG 539 Burner Control Box (MPN: CMG-539) is built for continuous-duty industrial piping, holding pressure, temperature, and cycling loads in factory installations across Kenya and East Africa.

Key technical advantages
Authentic Italian RBL manufacture ensuring 100% bolt-on compatibility with Riello burners
Microprocessor sequence timing provides smooth ignition and stable combustion
Instant flame failure safety lockout within 1 second
Built-in photo-electric flame signal amplifier
Integrated illuminated reset pushbutton shows real-time lockout status
Plug-in mounting onto standard RBL / Riello burner control bases
High-grade Viton-sealed relays resist diesel moisture and heat aging
Protects against low voltage drop contact chatter
Complies with European EN 230 and CE combustion safety directives
Ideal replacement for commercial steam boilers and bakery ovens
Target equipment applications
Riello 40 G3 / G5 / G10 / G20 Diesel BurnersRBL Commercial Oil Burner AssembliesHotel & Lodge Central Hot Water BoilersHospital & Laundry Steam BoilersTea & Tobacco Small Drying KilnsCommercial Bakery Deck Ovens

Quotation & fulfilment

AvailabilityCounter stock
Pickup locationEnterprise Rd, Nairobi
Dispatch windowSame day
Tax invoiceKRA E-TIMS ready
02 · Datasheet

Parametric technical attributes

CMG-539 technical parameters
RBL CMG-539
IDENTIFICATION
Component TypeRBL CMG 539 Burner Control Box
Manufacturer / BrandRBL
Part Number (MPN)CMG-539
Stock Keeping Unit (SKU)RBL-CB-CMG539
TECHNICAL PARAMETERS
Controller ModelRBL CMG 539 230V
ManufacturerRBL / Riello (Italy)
Burner CompatibilityRiello 40 G-Series / RBL Light Oil Burners
Pre-Purge Time (t1)12.0 Seconds
Safety Time (t2 max)10.0 Seconds
Flame Sensor InputPhotocell Photo-resistor (Riello 40 standard)
Output Contact Rating5 A max per terminal (total 10 A)
Lockout ResetIlluminated Manual Pushbutton
Degree of ProtectionIP 40
Weight0.27 kg
PERFORMANCE & RATINGS
Mains Voltage220 - 240 V AC 50/60 Hz
Power Consumption3.0 VA
Ambient Temperature-20 °C to +60 °C
COMPLIANCE & STANDARDS
OriginItaly
COMPLIANCE & LOGISTICS
Stock AvailabilityIn Stock — Enterprise Rd, Nairobi
KRA Tax StatusOfficial KRA E-TIMS Tax Invoice Available
03 · Compatibility

System fitment & verified replacements

Verified interchangeable models

Direct Replacement:Riello 40 / RBL Standard Control Relays
Equivalent Alternatives:
  • RBL 552 SE Burner Control Box
  • Siemens LOA24.171B2E Burner Control Box

Commonly installed on equipment from

RBLRielloSiemensBalturBaiteEcoflamDanfoss
04 · Frequently asked

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.

Yes, STARNEX provides official KRA E-TIMS tax invoices.

System Spares · Related Machinery Parts

Related & Recommended Spares

View All Controllers, Indicators & Test Equipment Spares
Autotune PID Digital Temperature Controller
Generic · controllers indicators test equipment

Autotune PID Digital Temperature Controller

MPN: BLX-TC-5100
In stock
View
Digital Multifunction Timer & Star-Delta Relay
Generic · controllers indicators test equipment

Digital Multifunction Timer & Star-Delta Relay

MPN: BLX-TMR-5200
In stock
View
High-Voltage Insulation Megohmmeter Tester
Generic · controllers indicators test equipment

High-Voltage Insulation Megohmmeter Tester

MPN: BLX-MEG-5700
In stock
View
STARNEX Industrial Spares Ltd

Industrial spare parts supplier. Genuine OEM components for burners, pumps, bearings, valves, and automation systems across Kenya and East Africa.

SMK Business Center, Enterprise Road, Industrial Area, Nairobi
About Us·Company Profile (PDF)·Trade Counter
Products
  • Burners & Nozzles
  • Fuel Pumps & Solenoids
  • Industrial Pumps
  • Motors & VFDs
  • All Categories →
Resources
  • Engineering Articles
  • V-Belt Calculator
  • Bearing Tolerance Chart
  • Thread Identification
  • Company Profile (PDF)
Contact
+254 740 459 672sales@starnexindustrialspares.com

Mon–Sat: 8:00 AM – 5:00 PM

© 2026 STARNEX Industrial Spares LtdNairobi, Kenya · KRA PIN: P052208035D