Allanson Transformers 2721-605 Gas Transformer

Gas Transformer from Allanson (2721-605) delivers reliable high-voltage conversion for residential, industrial, and commercial gas furnaces. With a primary voltage of 250 V AC and a secondary voltage of 10,000 V AC at 60 Hz, it powers furnace control circuits with precision. Built around a ferromagnetic core, the unit uses a mid-point ground and end-hinge design, complemented by large spring contact terminals in a compact 2-pole configuration. It carries a voltage rating of 120 VAC and a loading air gap of 1/8 to 3/16 inch, engineered for safe startup and reliable operation. Operates across a wide range of temperatures (-30 to 40 C in use; storage -40 to 80 C) and up to 90% relative humidity, making it suitable for challenging environments. Ideal for gas furnace applications across residential, commercial, and light industrial settings.

• Primary voltage: 250 V AC
• Secondary voltage: 10,000 V AC
• Frequency: 60 Hz
• Core/type: Ferromagnetic, mid-point grounded, end-hinge, 2-pole
• Terminals: Large spring contact
• Voltage rating: 120 VAC
• Loading air gap: 1/8 to 3/16 inch
• Operating range: -30 to 40 C (operating); -40 to 80 C (storage); RH up to 90%
• Applications: Residential, industrial, commercial gas furnaces