Allanson Transformers 421-659 Gas Transformer

Gas Transformer Allanson 421-659 delivers reliable high-voltage ignition power for residential, industrial, and commercial gas furnaces. This transformer converts a 250 VAC primary input to a robust 10,000 VAC secondary at 60 Hz, ensuring consistent ignition performance across a variety of furnace configurations.

Built for durability, it features a Rajah connector, an internal junction box, and a ferromagnetic core with a mid-point ground design. The unit uses a 2-pole configuration and is rated for 120 VAC input, with a precise loading air gap of 1/8 to 3/16 inch. It tolerates wide temperatures and humidity: storage -40 to 80°C, operation -30 to 40°C, up to 90% RH.

• Primary voltage: 250 VAC; Secondary voltage: 10,000 VAC; Frequency: 60 Hz
• Terminal type: Rajah Connector; Junction box: Internal
• Core design: Ferromagnetic with Mid Point Ground; Pole count: 2
• Input rating: 120 VAC
• Loading air gap: 1/8" to 3/16"
• Environmental tolerance: -40 to 80°C (storage); -30 to 40°C (operating); 90% RH
• Applications: Residential, Industrial, Commercial Gas Furnaces

Ideal for installation where reliable ignition power and rugged construction are required, this transformer supports safe, long-term operation in diverse environments.