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3G Electric
COFI Oil transformer TRS 820/S - Ignition Transformers
COFIIgnition Transformers

COFI Oil transformer TRS 820/S

The Cofi TRS 820/S is an oil transformer designed for ignition applications requiring high-voltage secondary output. It delivers 2x4000V secondary voltage from 220V primary input, making it suitable for industrial…

SKU 3G-CBM-01187

Also listed as: 820 S · 820-S

Brand
COFI
Item
Oil transformer TRS 820/S
Part Number
820S
Category
Ignition Transformers
UNSPSC
39121003 — Instrument transformers
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

COFI
Manufacturer Part Number
820S
type
oil transformer
model
TRS 820/S
volts
2x4000
tension v
220
primary voltage
220V
secondary voltage
2x4000V

Technical Documents

(1)
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COFI Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Cofi TRS 820/S is an oil transformer designed for ignition applications requiring high-voltage secondary output. It delivers 2x4000V secondary voltage from 220V primary input, making it suitable for industrial ignition systems and high-voltage equipment activation.

Frequently Asked Questions

Where can I buy the COFI TRS 820/S oil transformer worldwide?

Source the COFI TRS 820/S directly from 3G Electric, an authorized distributor. We handle logistics, customs, and delivery globally. Lead time on request — contact our team for availability and quotation.

What is the lead time and delivery schedule for the TRS 820/S?

Lead time varies based on stock and destination. 3G Electric coordinates international shipping with full customs support. Request a quote for your specific timeline and location.

What are the electrical specifications of the COFI TRS 820/S?

The TRS 820/S is rated 220V primary input and delivers 2x4000V secondary output. It is designed for high-voltage ignition applications in industrial equipment requiring secure activation and reliable secondary switching.

Used in

Common applications for COFI
Industrial gas boilers — Cofi TRS 830 P/S ignition transformer for spark generation in natural gas burners
Fuel oil burner systems — Cofi TRG 1035/S transformer providing dual 5000V outputs for oil atomization ignition
High-energy ignition in process furnaces — Cofi TRK2-35 oil-filled transformer delivering 12000V for heavy fuel ignition
Combustion control panels — Cofi T17M transformer with polyester resin isolation for electrode gaps of 3-5mm
Dual-fuel burner applications — Cofi TRS 818 C/S4 oil transformer with 2x4000V output for gas/oil switching
Field replacement and maintenance — Cofi Spina cable A L400mm straight and angled high-voltage cables for transformer retrofits
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COFI Products

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
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Dongan HC-0500-4100, single-phase control transformer, 500 VA
Dongan
Dongan
Dongan 50-0500-052, single-phase control transformer, 500 VA
Dongan
Dongan
Dongan HC-0500-4400, single-phase control transformer, 500 VA

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