Is the Combutech Box COMBU1s available from 3G Electric?

Yes — 3G Electric supplies genuine Combutech products with in-stock availability on common SKUs and worldwide shipping.

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Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all combustion we distribute.

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CombutechCombustion

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Combutech Box COMBU1s

SKU 3G-CBM-01170

Also listed as: COB 02002 · COB-02002

Brand

Combutech

Item

Box COMBU1s

Technical Specifications

Combutech

fuse

5x20mm QUICKBLOW 3.15 A 

voltage

230 V ±15% 

frequency

50/60 Hz 

purge time

1÷250 s 

pre ignition

500 ms 

max output load

3 A @ 230 V cosϕ=0.4 

protection class

IP40 

power consumption

3 VA MAX 

power dissipation

2 W MAX 

relative humidity

45÷85 % 

storage temperature

-20÷80 °C 

detector line length

<1 m 

startup safety delay

2÷25 s 

operating safety delay

1÷12 s 

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Combutech Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Combutech Box COMBU1s is a combustion control unit for industrial burner systems, operating at 230 V ±15% with 50/60 Hz frequency. Features adjustable purge time of 1÷250 s, startup safety delay of 2÷25 s, and maximum output load of 3 A @ 230 V. IP40-rated for boiler room and industrial heating applications.

Used in

Common applications for Combutech

Oil burner safety interlocks — Combutech COMBUP series pressure switches monitor furnace draft or fuel pressure with ±15% tolerance and IP54 sealing

Flame failure detection — UV1 or UV1p detection cells with CF1 relay module monitor combustion in industrial boilers and process heaters, 10,000+ hour lifespan

Gas burner startup sequencing — COMBU1s control unit manages purge timing (1–250 s), ignition delay, and load switching for multi-burner systems at 230 V ±15%

Pressure vessel monitoring — Low-range COMBUP10 switches (2–10 mbar) provide reliable differential-pressure or air-intake supervision in heating and HVAC plant

Industrial process automation — Flame relay CF1 handles up to 10 simultaneous UV sensors for redundant combustion confirmation in pharmaceutical, food, or chemical processing

Retrofit and maintenance replacement — Standardized 1/4" female thread, DIN connectors, and IP54/IP65 ratings allow drop-in substitution in legacy burner control panels without rewiring

Combutech Products

3G Electric supplies Combutech combustion. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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