Marsh Bellofram Diversified Electronics Division ARA Series Triplexor Alternating Relay - Marsh Bellofram - #1 |
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ARA Series Diversified Electronics atcdiversified.com 800.727.5646
254Alternating Relays &
Controllers // ARA Series
The ARA-120-AJE is a special function Triplexor designed for three load
installations. This model has a field selection switch that is used to lock the
Alternating Relay into a desired sequence. The ARA-120-AJE has the
option of automatically alternating on each load cycle or by external
clocking. This Alternating Relay also allows for additional loads to run in
the event of excess load requirements.
The alternating action is initiated by the control switch between terminals
2 and 4 when the factory installed jumper is in place between terminals 3
and 4. The alternating action may be initiated externally by removing the
factory installed jumper between terminals 3 and 4 and placing an isolated
normally open switch between terminals 2 and 3. The alternating action
will occur each time this isolated switch is closed and then re-opened.
A four position rotary switch has been incorporated to permit field
selection of the sequence that is to be maintained. The selection switch has
the following positions:
Normal — Normal operation as a Triplexor
Lock 1 — Locks in sequence 1-2-3; No alternation will occur
while in this position.
Lock 2 — Locks in sequence 2-3-1; No alternation will occur
while in this position.
Lock 3 — Locks in sequence 3-1-2; No alternation will occur
while in this position.
In the event of a power failure, the alternating relay will return to its
quiescent state and continue sequencing loads on one-at-a-time.
T r i p l e x o r A l t e r n a t i n g R e l a y
\\\OPERATION
\\\WIRING
\\\SPECIFICATIONS
CONTROL
VOLTAGE 120 VAC ±10%, 50/60 Hz
CONTROL
SWITCH CURRENT 2 mA
POWER REQUIRED 3 VA (Approximately)
DUTY CYCLE Continuous
OUTPUT RATING Triplexor
(3) 5 Amp Resistive, 1/6 hp,
211 VA @ 120 VAC, Inductive
Externally Switched to
terminal #2
LIFE EXPECTANCY
Mechanical 10,000,000 Operations
(Minimum)
Electrical 100,000 Operations
@ Rated Load
INDICATORS LED’s Show Condition of Outputs
TEMPERATURE
RATING
Operate -4° to 131°F (-20° to +55°C)
Storage -40° to 185°F (-40° to +85°C)
ENCLOSURE Style “E” Lexan® Surface Mounted
TERMINATIONS (12) #8-32 Screw Terminals
WEIGHT 17 oz.
\\\ORDERING INFORMATION
MODEL NUMBER DESCRIPTION
ARA-120-AJE Alternating Relay
INCLUDES SEQUENCE
LOCKING SWITCH
\\\DIMENSIONS (INCHES)
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