Allanson Transformers 421-331 Gas Transformer

The Allanson 421-331 Gas Transformer delivers dependable high-voltage output for gas furnaces. With a 250 V AC primary input and a 10,000 V AC secondary, this unit runs at 60 Hz to power ignition and control circuits in residential, industrial, and commercial settings.

Rated for a 120 V AC control side, it features a ferromagnetic core and a mid-point ground configuration for enhanced safety and reliable operation.

Built for rugged performance, the transformer includes zinc-plated button terminals, a mounting side bracket, and an end-hinge design that facilitates flexible installation in tight spaces.

• Primary voltage: 250 V AC; Secondary voltage: 10,000 V AC; Frequency: 60 Hz
• Terminal type: zinc-plated button; Mounting: side bracket; Hinge: end hinge; 2-pole configuration
• Voltage rating: 120 V AC; Loading air gap: 1/8"–3/16"
• Operating temperature: -30 to 40 C; Storage temperature: -40 to 80 C; Relative humidity: up to 90%
• Applications: residential, industrial, and commercial gas furnaces