KMC Controls MCP-1030-3111 Actuator Refrigerant provided the line size matches

provided the line size matches the 3/4" OD specification

Tamper Resistance: The concealed range adjustment screw ensures settings remain exactly where the technician set them

60-130V Dropout

using this HVAC pressure switch ensures compatibility with existing wiring harnesses and mounting brackets

While the physical footprint may vary slightly from units produced decades ago

KMC Controls MCP-1030-3111 Actuator Refrigerant provided the line size matchesThe KMC Controls MCP 1030 3111 is a heavy duty pneumatic damper actuator engineered as a direct replacement for MCP 0303. This Series 3 actuator is designed to provide precise positioning of automatic air dampers in high demand HVAC systems, supporting both gradual and two position applications. Operating within a 5 10# spring range (PSI) and featuring a 3 inch stroke, this unit ensures reliable airflow modulation in air handling units and ventilation