Korgood ZM20-12 Ignition Transformer — High-Voltage Burner Ignition Coil (1PC)

Korgood · Burner Component · 2×6kV / 2×8kV · In stock

The Korgood ZM20-12 is a compact, epoxy-potted high-voltage ignition transformer designed for direct spark ignition of industrial gas and light-oil burners. It steps a 110/220V AC supply up to 2×6kV or 2×8kV output so the ignition electrode can reliably strike an arc across the burner nozzle. As a Chinese burner-component OEM, Korgood supplies the ZM20-12 to OEMs and end users running industrial combustion equipment — it is widely used as a direct replacement for legacy Brahma TM31-style coils and pairs cleanly with Honeywell S4565 / Siemens LFL1.335 / Fireye UV-1.1 burner management controls on factory automation lines.

Looking for a specific burner management or PLC to drive the ignition sequence? KOEED stocks the full combustion stack: Allen-Bradley MicroLogix for burner interlock logic, Siemens LFL/LME flame safeguards, Mitsubishi MELSEC for oven control, Omron SYSMAC for safety sequencing, Fanuc servo drives for modulating damper motors, Schneider Magelis HMI panels, Yaskawa Σ-7 servo for air-fuel ratio, Panasonic FP PLCs for small-burner skids, and KEYENCE flame-detection sensors. One BOM, one quote, one shipment.

Key Technical Specifications

Application Scenarios — Where the ZM20-12 Fits

The ZM20-12 is purpose-built for direct-spark intermittent burner ignition in industrial combustion equipment. Common deployments include:

• Industrial boilers — gas-fired and dual-fuel steam / hot-water boilers in textile, paper and chemical plants.
• Kiln burners — rotary kilns for cement, lime, alumina and ceramic production.
• Furnace burners — heat-treatment, forging and reheat furnaces in steel and metalworking shops.
• Process heaters — direct-fired process heaters in refinery, petrochemical and gas-processing units.
• Paint drying ovens — automotive and white-goods paint lines where stable spark initiation matters.
• Food processing steam boilers — brewery, dairy and edible-oil plants running low-NOx gas burners.
• Asphalt mixing plants — drum and batch plants with multi-burner aggregate dryers.
• Incinerators and thermal oxidizers — waste-to-energy and RTO/RCO pilot burners.

Pairing the ZM20-12 with a burner-management system (BMS) is standard practice. Browse related Siemens LFL/LME flame safeguards or Allen-Bradley CompactLogix safety PLCs for the upstream interlock chain. For oven line control panels, Mitsubishi GOT HMI and Omron NB-series touch panels are the usual operator interface.

Integration & Wiring Notes

The ZM20-12 has three primary-side connections (live, neutral, ground) and two M5 high-voltage studs on the secondary side. Always run the high-voltage side with silicone-jacketed ignition cable (typically 7 kV or 10 kV rated) and keep the lead as short as practical to limit capacitive losses.

The BMS contactor (or TRIAC output on a Siemens LME / Honeywell S4565) is the on/off control for the primary. Many panels use a dedicated safety relay or a small Schneider Modicon M340 / Yaskawa MP2300 safety I/O slice to drop the ZM20-12 out of circuit the moment the flame sensor goes dark. Need help with the interlock ladder? Try the PLC Error Code Database or the AI Diagnostic Tool for naming conventions on common burner-management faults.

Installation & Commissioning Tips

1. Mount on a cool, vibration-free surface. Epoxy-potted coils shed heat through the body; keep them away from the burner windbox and the hot side of refractory.
2. Set electrode gap first, then tighten HV studs. 3.5–4.5 mm is the sweet spot; oversized gaps cause the arc to track back into the coil and shorten life.
3. Verify the BMS trial-for-ignition (TFI) timer. Most LFL/LME controllers run a 3–5 s TFI window — the ZM20-12’s 3 s on-time limit is the design reference.
4. Use a flame meter or UV scanner, not your eyes, on first light-off. A weak UV signal often traces back to a marginal spark, not a bad detector.
5. Inspect HV cable terminations every 3 months. Carbon tracking at the boot is the most common cause of nuisance flame-fail lockouts.
6. Ground the burner chassis at one point only. Multi-point ground loops on a ZM20-12 produce arcing at the stud that the BMS will read as a flame loss.
7. Log the first 10 ignition attempts. A consistent 2–3 s flame-prove time means a healthy installation; creeping toward the TFI limit means electrode wear.

Want to size a small burner control panel around this coil? Panasonic FP0R or KEYENCE KV-series PLCs are popular for compact burner skids, while a Omron CP1H handles mid-size boilers. For large multi-burner furnaces with modulating dampers, the Fanuc servo + drive package drives the air-fuel ratio cleanly.

Procurement, Warranty & Lead Time

KOEED is a B2B industrial-automation sourcing company. The ZM20-12 is supplied as a 1PC unit, with carton-pack quantity available on request. Stock is held at our Shenzhen / Hong Kong China sourcing facility for worldwide shipping — typical lead time is 3–5 business days for in-stock units, plus transit via DHL / FedEx / UPS. Quotation is turn-around within 24 hours on business days.

• Warranty: 12-month limited warranty against manufacturing defect; replacement or refund per our Return Policy.
• Authenticity: Sourced direct from Korgood (Chinese OEM); test report shipped with each lot on request.
• Quantity breaks: Single-piece sample orders accepted; tiered pricing for OEM / skid-builder volume.
• Cross-reference: Drop-in compatible with Brahma TM31, Mido H1/12, and most Chinese-market ZM-series coils. Send your current P/N for confirmation.
• Documentation: Datasheet (PDF) provided on request via email.

Have a full burner BOM — coil, BMS, UV scanner, modulating motor, HMI — you can roll it into one shipment from our All collection index and Brands catalogue. The fastest path is the Create a Quote form; the most flexible is to email your part list directly.

Questions before you order? Email Moritta@KOEED.COM with your burner model, current ignition-coil P/N, and quantity. Quotes returned within 24 hours on business days. See also: Contact Us · Real-Time Records · Shipping Policy.