Siemens LAL 2.25 Burner Control Box is an authentic Siemens industrial component (Model/MPN: LAL2.25-230V) engineered for continuous factory operations and machinery maintenance in Kenya and across East Africa. Key verified ratings include Controller Model: Siemens LAL 2.25 230V, Manufacturer: Siemens (Germany), Mains Voltage: 220 - 240 V AC 50/60 Hz. Standard plant applications include Multi-Stage Industrial Steam Boilers, Modulating Heavy Oil & Diesel Burners, Tea Factory High Capacity Furnace Burners. 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.
Siemens LAL 2.25 Burner Control Box
Siemens LAL 2.25 Burner Control Box is an authentic Siemens industrial component (Model/MPN: LAL2.25-230V) engineered for continuous factory operations and machinery maintenance in Kenya and across East Africa. Key verified ratings include Controller Model: Siemens LAL 2.25 230V, Manufacturer: Siemens (Germany), Mains Voltage: 220 - 240 V AC 50/60 Hz. Standard plant applications include Multi-Stage Industrial Steam Boilers, Modulating Heavy Oil & Diesel Burners, Tea Factory High Capacity Furnace Burners. 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 Siemens LAL 2.25 Burner Control Box is a high-capacity automatic sequence controller engineered for multi-stage (two-stage or three-stage) and fully modulating forced-draft oil burners of unlimited capacity. Designed by Siemens in Germany, the LAL 2.25 controls oil burner startup, damper actuator positioning, long pre-purge timing (22.5 seconds), and continuous optical flame monitoring. Equipped with a mechanical cam sequence timer, air pressure interlock supervision, and dual flame sensor inputs (yellow flame QRB1 / blue flame QRB3 / RAR7 photo-electric), the LAL 2.25 ensures extreme operational safety in heavy industrial steam boilers, tea factory furnaces, and asphalt plants across East Africa.
High-capacity yellow/black flame sequence controller Siemens LAL 2.25 for multi-stage or modulating forced-draft oil burners in industrial boilers.
Quotation & fulfilment
Parametric technical attributes
| Siemens LAL2.25-230V | |
| IDENTIFICATION | |
| Component Type | Siemens LAL 2.25 Burner Control Box |
| Manufacturer / Brand | Siemens |
| Part Number (MPN) | LAL2.25-230V |
| Stock Keeping Unit (SKU) | SIE-CB-LAL225 |
| TECHNICAL PARAMETERS | |
| Controller Model | Siemens LAL 2.25 230V |
| Manufacturer | Siemens (Germany) |
| Burner Types | Multi-Stage / Modulating Oil Burners (Unlimited Capacity) |
| Pre-Purge Time (t1) | 22.5 Seconds with Air Damper Open |
| Pre-Ignition Time (t3) | 2.5 Seconds |
| Safety Time (t2 max) | 5.0 Seconds |
| Air Damper Control | Open / Close Servo Motor Interlock Supervision |
| Flame Detector Compatibility | QRB1 / QRB3 / RAR7 / RAR8 Photo-electric |
| Relay Contact Rating | 5 A max per output (total 10 A) |
| Lockout Indicator | Red Illumination Lamp & Position Cam Pointer |
| Degree of Protection | IP 40 |
| Weight | 1.10 kg |
| PERFORMANCE & RATINGS | |
| Mains Voltage | 220 - 240 V AC 50/60 Hz |
| Power Consumption | 3.5 VA |
| COMPLIANCE & STANDARDS | |
| Origin | Germany |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | On request |
System fitment & verified replacements
Interchangeable models
- Siemens LAL 1.25 Burner Control Box
- Siemens RMO 88.53D2 Burner Control Box
Commonly installed on equipment from
Common questions on this part
The LAL 2.25 is designed for multi-stage (two-stage / three-stage) and fully modulating forced-draft oil burners of unlimited capacity in industrial steam boilers.
The LAL 2.25 features a 22.5-second pre-purge time (t1), whereas the LAL 1.25 features a shorter 22.5s sequence with 5s safety time, optimized for different burner capacities and air damper stroke speeds.
Siemens LAL 2.25 controllers are available for instant pickup at STARNEX Industrial Spares, SMK Business Center, Enterprise Road, Industrial Area, Nairobi.
Yes, we provide fast regional delivery to Kampala, Jinja, Dar es Salaam, Arusha, Mwanza, Kigali, and Bujumbura.
It supports QRB1, QRB3 yellow-flame photo-resistors and RAR7 / RAR8 blue-flame photo-electric detectors.
During pre-purge, the controller forces the air damper motor to drive fully OPEN, verifies end-switch closure, purges the furnace, then drives the damper to MINIMUM position before ignition.
The maximum safety time limit is 5.0 seconds from initial fuel solenoid valve opening.
Yes, the LAL 2.25 is widely used on HFO and preheated heavy diesel burner installations when paired with proper preheater interlocks.
The position of the dial pointer during a lockout indicates the exact stage in the sequence where the fault occurred (e.g. pre-purge, ignition, or main flame).
Press the lockout reset button in the center of the indicator dial after eliminating the burner fault.
Yes, STARNEX supplies matching plug-in terminal bases for Siemens LAL series controllers.
Our senior combustion engineers provide complete wiring crossover diagrams and commissioning guidance.
It operates on 220-240 V AC 50/60 Hz single-phase mains supply.
Yes, corporate discounts are available for tea factories, sugar mills, and manufacturing plants.
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.
