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Memphis Control Center carries Dongan ignition transformers for commercial and industrial gas and oil fired burner applications — one of the most trusted transformer brands in the combustion industry. A06-SA6 (120V primary, 6,000V secondary, 175 VA, 60 Hz) for 6,000V oil and gas burner ignition systems. A10-LA2 (120V primary, 10,000V secondary, 250 VA, 22 mA, 60 Hz — UL Listed, CSA Approved, Industrial Gas & Oil Series). A06-SJ5 (120V primary, 6,000V secondary, 60 Hz — fits Cleaver Brooks and other commercial boilers). Dongan Electric Manufacturing Company has manufactured transformers in Fraser, Michigan (Metro Detroit) since 1909. Products tested to UL and NEMA standards. Same-day shipping from Memphis, TN since 1967.
Dongan ignition transformers are step-up transformers that take a standard 120V AC supply and deliver the high-voltage output (6,000V or 10,000V) needed to fire the electrode in an oil or gas burner. Contact us or call (901) 458-2000 if you need help matching a Dongan transformer to your burner application.
The Dongan A06-SA6 is a high-voltage ignition transformer for oil and gas fired burner applications. It steps up a standard 120V AC primary supply to a 6,000V secondary output at 175 VA — the high voltage needed to create the ignition spark across the burner electrode gap. Compact design for installation in burner control panels and burner mounted transformer brackets.
Specifications: Primary voltage 120V AC. Secondary voltage 6,000V. Power rating 175 VA. Frequency 60 Hz. Weight approximately 9.25 lbs.
The Dongan A10-LA2 is a heavy-duty industrial ignition transformer from Dongan's Industrial Gas & Oil Series. It delivers a 10,000V secondary output at 250 VA — suitable for demanding commercial and industrial burner applications where 6,000V transformers are insufficient. UL Listed and CSA Approved. End ground configuration. Universal mounting.
Specifications: Primary voltage 120V AC. Secondary voltage 10,000V AC. Secondary current 22 mA. Power rating 250 VA (0.25 kVA). Frequency 60 Hz. Weight approximately 18 lbs. End ground terminal. UL Listed. CSA Approved.
The Dongan A06-SJ5 is a 6,000V ignition transformer used on Cleaver Brooks commercial boilers and other 6,000V burner ignition systems. Same primary/secondary voltage as the A06-SA6 but in a different housing and terminal configuration — confirm your existing transformer's part number before ordering to ensure the correct mounting and terminal layout for your burner.
Specifications: Primary voltage 120V AC. Secondary voltage 6,000V. Frequency 60 Hz. Weight approximately 8 lbs.
Use this table to match a Dongan part number to your application. If you are replacing an existing transformer, match the secondary voltage (6,000V or 10,000V), the terminal configuration, and the mounting arrangement of your existing unit. Call (901) 458-2000 with your existing transformer's part number or burner make and model and we will confirm the correct replacement.
| Model | Primary | Secondary | VA | mA | Certifications | Notes | Shop |
|---|---|---|---|---|---|---|---|
| A06-SA6 | 120V AC | 6,000V | 175 VA | — | — | General oil/gas burner ignition | Shop |
| A10-LA2 | 120V AC | 10,000V | 250 VA | 22 mA | UL Listed · CSA | Industrial Gas & Oil Series · end ground | Shop |
| A06-SJ5 | 120V AC | 6,000V | — | — | — | Cleaver Brooks · alt: 612-8A021, 832-10 | Shop |
| A05-SA6 | 120V AC | 5,000V | 115 VA | — | — | General oil/gas burner ignition — inquire to order | Inquire |
| A06-SB6 | 120V AC | 6,000V | — | — | — | Gas burner ignition · alt: 612-6A7 — inquire to order | Inquire |
| A06-SC2 | 120V AC | 6,000V | — | — | — | Fulton boilers · 1-terminal — inquire to order | Inquire |
| A08-SA1 | 120V AC | 8,500V | 230 VA | — | — | Universal end ground · industrial gas/oil — inquire to order | Inquire |
| C10-LF3 | 240V AC | 10,000V (2×5,000V) | 175 VA | — | — | 240V primary dual secondary — inquire to order | Inquire |
Yellow rows = models not currently listed on our site but available to order — contact us or call (901) 458-2000 to inquire.
⚠ Important: When replacing an ignition transformer, match the secondary voltage, terminal configuration, and mounting arrangement of the original. A 6,000V transformer cannot be substituted for a 10,000V application. Call (901) 458-2000 to confirm the correct replacement for your burner.
Need a Dongan transformer not listed here? Contact us or call (901) 458-2000 — we can source from the full Dongan line including industrial control, general purpose distribution, and custom transformers.
Common questions about Dongan ignition transformers and burner ignition applications. Contact us or call (901) 458-2000 — Memphis Control Center has served the combustion industry since 1967.
What does an ignition transformer do in a burner?
An ignition transformer steps up a standard 120V AC supply to a much higher secondary voltage — 6,000V or 10,000V — to create the spark needed to ignite the fuel-air mixture in an oil or gas fired burner. The high-voltage output connects via ignition cable to the burner electrode, where the voltage jumps across the electrode gap to produce the ignition spark. The transformer fires only during the ignition trial period — typically a few seconds at startup. Without a functioning ignition transformer the burner cannot establish a flame and the control goes to lockout.
What is the difference between the Dongan A06-SA6 and A06-SJ5?
Both are 120V primary, 6,000V secondary, 60 Hz ignition transformers. The difference is in the housing, terminal configuration, and mounting arrangement. The A06-SJ5 is specifically noted as fitting Cleaver Brooks commercial boilers (cross-references: 612-8A021, 612-8AO38V, 832-10). The A06-SA6 is a general-purpose 6,000V ignition transformer. Two transformers with the same electrical ratings can have different terminal layouts that make them physically non-interchangeable — always match the exact part number of the original. Call (901) 458-2000 to confirm the correct replacement.
What is the difference between a 6,000V and 10,000V ignition transformer?
The secondary voltage is set by the burner manufacturer's design. 6,000V transformers (A06-SA6, A06-SJ5) are used in burner applications designed for 6kV ignition. 10,000V transformers (A10-LA2) are used in larger industrial gas and oil burner applications requiring higher voltage — typically due to wider electrode gaps or longer cable runs. You cannot substitute a 6,000V transformer for a 10,000V application and expect reliable ignition. Always replace with the same secondary voltage as the original transformer. The burner manufacturer's spec sheet or the nameplate on your existing transformer will specify the required secondary voltage.
Is the Dongan A10-LA2 UL Listed and CSA Approved?
Yes. The Dongan A10-LA2 is UL Listed and CSA Approved — independently tested and certified to meet safety standards required by most commercial and industrial mechanical codes in the United States and Canada. The UL Listing and CSA Approval are important for code-inspected boiler and burner installations. All Dongan products are tested to UL and NEMA standards.
How do I identify which Dongan ignition transformer I need?
Read the nameplate on your existing transformer — it will show the primary voltage (typically 120V), secondary voltage (6,000V or 10,000V), VA rating, and part number. Match these exactly when ordering a replacement. If the nameplate is unreadable, check your burner's service manual for the specified transformer model. Memphis Control Center can help cross-reference your existing part number to the correct Dongan model — call (901) 458-2000 with your transformer's part number or burner make and model.
For emergencies, outside of business hours, call #901-604-7069
