RHEEM PD425078 -Ruud 24V DPST N/O Sequencing Relay

24V DPST N/O Sequencing Relay

The RHEEM PD425078 -Ruud 24V DPST N/O Sequencing Relay has a rating of 2.0, it is used on RHEEM and Ruud Heat Pump units as a protection against freezing.

The 24 vdc (10-30 vdc) DPST N/O Sequencing Relay is designed to operate one device from two power sources. The relay is attached to the neutral bus bar of the two power sources in a dual source system. The relay monitors these power sources for faults. When a fault occurs on one of the sources (24vac) or when both power sources are energized, relay operation is reconfigured so that power can be switched to the working source. If either the primary or secondary is disabled by an under volt trip, that source will no longer have access to its circuit(s

The RHEEM Model PD425078 is a 24vac Dpst N/O Sequencing Relay. It has three, independently contraled terminals.

The 24-V Definite Purpose Sequencing Relay (DPST) is used to turn two 24-V loads or devices on or off in a predetermined sequence. The relay has two normally open (N/O) and two normally closed (N/C) sets of contacts that may be operated manually or automatically.

The RHEEM 24V N/O Relay is designed as a control device for HVAC - domestic heating, commercial building cooling, and central air conditioning systems. The diaphragm compressor is driven by the switching coils. The coil leakage is detected by a current interrupting device to prevent simultaneous energizing of the relay coils.

Give the operator the ability to control three different devices with just one push button control. Sequencing relays are used on many different air conditioning and heating units, allowing you an alternative option from using standard 3-way switches.

Constructed of rust-proof aluminum alloy, the Rheem Square D Sequencing Relay is ideal for controlling indoor and outdoor air conditioning equipment as well as other applications such as garage door openers.