SPDT & DPDT DUPLEXOR 
ARP Series
Alternating Relays are used in special applications where the optimization
of load usage is required by equalizing the run time of two loads. This alternating
action is initiated by a control switch, such as a fl oat switch, manual
switch, timing relay, pressure switch, or other isolated contact. Each
time the initiating switch is opened, the output relay contacts will change
state, thus alternating the two loads. Two LEDs indicate which load is the
next to energize.
The Alternating Relays listed on this page can be used with one or two
control switches and are available in either SPDT or DPDT output confi gurations.
For products with DPDT Cross-Wired output confi gurations to be
used with one, two or three control switches, DPDT Cross-Wired Duplexor.
Each version is available with an optional three position selector switch.
This allows the unit to alternate the two loads as normal, or lock the relay
to one load or the other. By locking the Alternating Relay to one load, the
other load can be removed for service without rewiring the fi rst load for
continuous operation. The selector switch has a low profi le to prevent any
accidental changes in status.
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