It does not require power itself but is designed to be part of a low-voltage analog input circuit provided by the building controller

Universal Compatibility: Direct fit for **S1-025-35151-000** and Sporlan-style MKC-2 valve configurations used in York equipment

Constructed with a 440 VAC rating

this HVAC blower proving switch ensures reliable performance across a standard operating temperature range of -40°F to 180°F

When swapping this assembly in Knight XL models such as the KBN800

Bray Commercial DC24-44-TAP Actuator 321894-706 It does not require powerThe Bray DC24 44 TAP Actuator is a precision engineered non spring return actuator designed for the reliable operation of HVAC damper control and globe valve assemblies. Operating on a 24V AC DC signal, this unit delivers a consistent 44 in lb torque output, making it an ideal choice for localized airflow management and terminal unit applications. Engineering auxiliary switches onto the chassis allows for seamless integration into Building Automation