Transformer 50VA, Multi-Voltage Primary 120/208/240/480V to 24V | NBK-20605

NBK-20605 – Transformer 50VA, Multi-Voltage Primary 120/208/240/480V to 24V – Special Order
The NBK-20605 Transformer is a versatile 50VA control transformer designed for HVAC systems and other control circuits requiring a reliable 24V output from a multi-voltage primary input. Its wide primary voltage compatibility allows this transformer to be used in diverse installations, from residential furnaces to commercial rooftop units.

SPECIAL ORDER NOTICE: This is a special order item from NBK. Please allow 1–2 business days for processing prior to shipment.

Key Features

• Multi-Voltage Primary: Supports 120V, 208V, 240V, and 480V primary input, delivering a consistent 24V output
• 50VA Rating: Suitable for a wide range of low-voltage control applications
• Ideal Replacement: Matches the electrical and mounting specifications of popular OEM transformers
• Robust Construction: Built to withstand demanding HVAC environments

Specifications

• SKU: 20605
• Category: HVAC / Miscellaneous
• Description: NBK-20605 Transformer 50VA – 120/208/240/480V to 24V

Equivalent To

• MARS: 50327
• Packard: PF42450

Typical Uses

• HVAC furnace and air handler control circuits
• Boiler ignition systems
• Refrigeration units and commercial air handlers
• Any application requiring reliable 24V control power

Why Choose the NBK-20605?
Control transformers are critical for delivering low-voltage power to thermostats, relays, and ignition modules. A failing transformer may cause no-heat or no-cool conditions, erratic control board behavior, or blown low-voltage fuses. The NBK-20605 provides a dependable solution, restoring safe and stable operation.

Shipping & Availability
Special order from NBK. Please expect a 1–2 business day processing delay before shipping.