Can I use this for horizontal mounting

while it is rated for a maximum of 600VAC

ensure your mounting bracket is designed for a round canister rather than an oval one to secure the part properly

Can this be used on dual-dial pneumatic units

Bard S8402-028 Limit Control Can I use this forThe Bard S8402 028 Limit Control is a critical OEM safety component engineered for Bard wall mount HVAC units and similar industrial climate control systems. This high limit switch is designed to protect the heat exchanger and internal components from thermal damage by monitoring air temperatures within the plenum. Operating with a 150F open and 125F close configuration, it ensures the burner or heating elements are de energized if the system exceeds