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Cofi

ItalyIgnition & Transformers

Cofi manufactures ignition transformers and combustion control equipment for industrial burner systems across gas, oil, and dual-fuel applications. The product range spans step-up transformers (converting 220V primary input to high-voltage secondary outputs of 4000V to 8000V), gas transformers, oil transformers, and mounting accessories. Each transformer is specified for spark generation in industrial heating, combustion controls, and burner ignition circuits. Cofi transformers are typically supplied with integrated cable assemblies (ranging from 380mm to 400mm lengths) and are designed to meet the voltage and current demands of modern industrial burner controllers. The TRS series (gas transformers) includes models such as the TRS 515 PC/S, TRS 610 PC/S, and TRS 830 P/S, each rated to different secondary voltage outputs and suited to different burner configurations. The TRG series (fuel transformers) and TRE series (oil-immersed transformers) provide alternatives for systems requiring dual-output or immersed construction. Mounting kits and spina connectors are stocked to support field installation. The transformer range operates on 220V single-phase primary supply, a standard industrial utility voltage, making integration straightforward in existing control panels and combustion skids.

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About Cofi

Cofi manufactures ignition transformers and combustion control equipment for industrial burner systems across gas, oil, and dual-fuel applications. The product range spans step-up transformers (converting 220V primary input to high-voltage secondary outputs of 4000V to 8000V), gas transformers, oil transformers, and mounting accessories. Each transformer is specified for spark generation in industrial heating, combustion controls, and burner ignition circuits. Cofi transformers are typically supplied with integrated cable assemblies (ranging from 380mm to 400mm lengths) and are designed to meet the voltage and current demands of modern industrial burner controllers. The TRS series (gas transformers) includes models such as the TRS 515 PC/S, TRS 610 PC/S, and TRS 830 P/S, each rated to different secondary voltage outputs and suited to different burner configurations. The TRG series (fuel transformers) and TRE series (oil-immersed transformers) provide alternatives for systems requiring dual-output or immersed construction. Mounting kits and spina connectors are stocked to support field installation. The transformer range operates on 220V single-phase primary supply, a standard industrial utility voltage, making integration straightforward in existing control panels and combustion skids.

Common Applications

  • Gas burner combustion — TRS 515 PC/S, TRS 610 PC/S, TRS 830 P/S ignition transformers for spark generation in small to large capacity gas-fired heaters and boilers.
  • Oil-fired heating systems — TRE 820/S1 oil-immersed transformer for reliable ignition in heavy fuel oil and light fuel oil burners in industrial plants.
  • Dual-fuel burner control — TRS 610 PC/S for burners switchable between gas and oil, requiring consistent high-voltage spark across both fuel modes.
  • Burner retrofit and maintenance — Replacement ignition transformers and mounting kits for aging or damaged combustion control systems in existing boiler houses.
  • High-voltage spark generation — TRG 1035/S dual-output transformer for complex ignition circuits requiring multiple spark electrodes or redundant ignition paths.
  • Panel-mounted combustion control — Column 12X38 and Spina cable assemblies for compact transformer installation in enclosed burner management control panels.
Origin: Manufactured in Italy

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Frequently asked questions

Common questions about Cofi from 3G Electric.

What is the output voltage range of Cofi gas and oil transformers available?

Cofi ignition transformers in the current stock range from 4000V to 8000V secondary output. Single-output models (1x output) include the TRS 515 PC/S (5000V), TRS 610 PC/S (6000V), and TRS 830 P/S (8000V). Dual-output models (2x output) include the TRG 1035/S (2×5000V) and TRE 820/S1 (2×4000V). All accept 220V single-phase primary input. Selection depends on burner spark electrode gap and ignition circuit design.

Are Cofi transformers suitable for both gas and oil burner applications?

Yes. Cofi offers dedicated product lines: the TRS series for gas burners, the TRE series for oil-immersed applications, and models like the TRS 610 PC/S rated for gas-oil dual-fuel burners. Cable assemblies and connector types vary by model to match burner control inputs. Verify the specific burner model and ignition circuit voltage requirement before ordering to ensure compatibility.

What cable lengths are available on Cofi ignition transformers?

Standard Cofi transformers available include 380mm and 400mm integrated cable lengths. The Spina cable (SKU COF15010) is available with 400mm length, bent downward for compact panel mounting. Custom cable routing may require extension or retermination; consult the control system schematic to confirm cable length and routing clearances.

What accessories do you stock for Cofi transformer installation?

Mounting kits (SKU COF15002) and Spina connectors are available. These support field installation of transformers into existing burner control enclosures and panel-mounted combustion controllers. Verify mounting hole spacing and connector gender (male/female) against your control system documentation before ordering.

Are Cofi Column 12X38 transformers interchangeable with other Cofi models?

The Column 12X38 (SKU COF20008) is a specific form factor; interchangeability depends on electrical specification (input voltage, output voltage, cable length) and physical mounting footprint. Cross-reference the burner control wiring diagram and terminal layout before substituting. our technical staff can assist with model matching if documentation is available.

What is the primary input voltage for all Cofi transformers in the current range?

All Cofi ignition transformers listed operate on 220V single-phase primary input. This voltage is standard in industrial facilities across Asia, Europe, and regions with 220–240V utility supply. Confirm local supply voltage and any voltage variance tolerance before installation in control circuits with no autotransformer.