Proper installation involves verifying the L190-30F specifications to match the original equipment manufacturer’s requirements for airflow and heat rise safety

This relay operates on a 24VAC control circuit

the C25 series F-frame allows for the field installation of side-mounted auxiliary contacts (1NO

and Series 3-CT versions

Schneider Electric (Barber Colman) 2378-501 Relay Els PW 17895 Proper installation involves verifying theThe Schneider Electric (Barber Colman) 2378 501 Relay is a high performance pneumatic amplifying relay designed for proportional signal control in HVAC systems. Engineered as a Pneumodular component, this device provides a definitive 2: 1 amplifying function, doubling the input signal pressure to the branch line. This is essential for contractors managing larger actuators or terminal units that require higher pressure than the standard controller