Description
Siemens MT0150B 240/480-24V 150VA Control Transformer
The Siemens MT0150B is a 150VA control transformer engineered to deliver dependable, low-voltage power conversion for commercial and industrial HVAC control systems. Stepping down a 240/480V primary input to a 24V secondary output, this transformer provides the stable, clean power that modern building automation and HVAC control circuits demand.
Key Features
- 150VA transformer capacity for robust control circuit support
- Dual primary voltage rating: 240V / 480V for flexible installation
- 24V secondary output — the standard voltage for HVAC control systems
- Siemens quality construction for long-lasting, reliable performance
- Suitable for commercial and industrial HVAC and building automation applications
- Compact design for easy panel or equipment mounting
Application
The MT0150B is ideal for powering 24V control circuits in HVAC systems, building automation panels, and related commercial mechanical equipment. Its dual primary voltage configuration makes it adaptable to a wide range of electrical service environments, reducing the need for multiple transformer SKUs on the job.
Why Choose Siemens?
Siemens is a globally recognized leader in electrical and HVAC control components. The MT0150B reflects Siemens’ commitment to precision engineering, energy efficiency, and product reliability — making it a trusted choice for HVAC contractors, mechanical engineers, and building automation professionals.







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