Description
The Neptronic AC2-B is a professional-grade auxiliary switch designed to provide dependable end-of-travel or positional feedback signaling in HVAC actuator and valve control applications. Built to Neptronic’s exacting standards, this switch integrates seamlessly with compatible Neptronic actuators to enable status monitoring, interlock functions, and sequencing in commercial and industrial building automation systems.
Key Features
- Auxiliary switch accessory engineered for use with Neptronic actuators
- Provides reliable end-of-travel position feedback and status signaling
- Supports interlock, sequencing, and monitoring functions in BAS applications
- Compact, durable construction suited for commercial and industrial HVAC environments
- Designed for straightforward field installation on compatible Neptronic actuator models
Applications
- Damper and valve actuator position feedback
- Building automation and control system integration
- Commercial HVAC zone control and air handling units
- Industrial process control requiring actuator status monitoring
Why Choose Neptronic?
Neptronic is a globally recognized manufacturer of HVAC controls, actuators, and humidification products. Their components are trusted by mechanical contractors and building automation professionals for consistent performance, long service life, and ease of integration into modern control systems. The AC2-B auxiliary switch upholds this tradition, delivering the reliability and precision that demanding HVAC applications require.







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