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Marsh Bellofram Diversified Electronics Division ARA, ARB Series Duplexor

Marsh Bellofram Diversified Electronics Division ARA, ARB Series Duplexor

Product catalog summary

Overview
The ARA and ARB Series Duplexor is designed for control panels requiring alternating operation of two loads to ensure equal run time. The alternation is triggered by a control switch, and LED indicators display the relay's output position.

Specifications

Control Voltage: Available in 24, 120 VAC/DC, 208, 240, 480 VAC, 50/60Hz, and 48 VDC with a tolerance of ±10%.
Control Switch Current: 1 mA
Power Required: Approximately 3 VA
Duty Cycle: Continuous
Life Expectancy: Mechanical - 10,000,000 operations minimum; Electrical - 100,000 operations at rated load
Indicators: LED shows output position
Temperature Rating: Operating -4° to 131°F (-20° to +55°C); Storage -40° to 185°F (-40° to +85°C)
Contact Rating: 10 Amps at 240 VAC, 1/8 hp at 120 VAC, 1/4 hp at 240 VAC inductive, 360 VA at 240 VAC inductive
Enclosure: Lexan® Dust Cover
Terminations: Industrial Plug-in
Weight: 4.5 oz.

Features

The ARA series provides automatic alternating sequence.
The ARB series includes automatic sequencing with an option to lock into a specific sequence (A-B or B-A) using a three-position switch.

Model Number Configuration

Type of Alternating Relay: Standard (A) or Special Function (B)
Control Voltage Options: 24 VAC/DC, 48 VDC, 120 VAC/DC, 208 VAC, 240 VAC, 380-408 VAC (consult factory for 480 VAC)
Type of Voltage: VAC or VAC/DC, 48 VDC only
Contact Configuration: SPDT, DPDT (Cross Wired), DPDT
Enclosure Style: RB-08/OT-08, RB-11/PF113A

Additional Notes
For analog signal inputs, ATC offers a duplexing pump control with the ATC-Digitec 3800 Panel Meter. Note that 480 VAC is not available in the D-DPDT 11-Pin configuration.

Catalog excerpts

Marsh Bellofram Diversified Electronics Division ARA, ARB Series Duplexor-1

ARA, ARB Series Diversified Electronics atcdiversified.com 800.727.5646 250Alternating Relays & Controllers // ARA, ARB Series The Duplexor is used in control panels where two loads are required to alternate to provide equal run time on the loads. The alternating action is initiated by a control switch, which is common with one side of the control voltage. The output contacts will change states each time the control switch is opened, thus alternating the two loads. The LED indicators show the position of the output relay. The ARA series is the standard Duplexor providing automatic alternating sequence. The ARB has the automatic sequencing feature plus the option of locking it into one sequence. A three position switch permits the field selection of normal duplexing action, locking in the A-B sequence, or B-A sequence. D u p l e x o r \\\SPECIFICATIONS CONTROL VOLTAGE 24, 120 VAC/DC, 208, 240, 480 VAC, 50/60Hz, 48 VDC, ±10% CONTROL SWITCH CURRENT 1 mA POWER REQUIRED 3 VA (Approximately) DUTY CYCLE Continuous LIFE EXPECTANCY Mechanical 10,000,000 Operations (Minimum) Electrical 100,000 Operations @ Rated Load INDICATORS LED Shows Output Position TEMPERATURES RATING Operate -4° to 131°F (-20° to +55°C) Storage -40° to 185°F (-40° to +85°C) CONTACT RATING 10 Amps @ 240 VAC, Resistive 1/8 hp @ 120 VAC 1/4 hp @ 240 VAC Inductive 360 VA @ 240 VAC, Inductive ENCLOSURE “A” Lexan® Dust Cover TERMINATIONS Industrial Plug-in WEIGHT 4.5 oz. NOTE: For Analog signal inputs, ATC offers a duplexing pump control — the ATC-Digitec 3800 Panel Meter 480 VAC is not available in the D-DPDT 11-Pin configuration \\\WIRING \\\DIMENSIONS (INCHES) MODEL NUMBER >>>>>> AR A Type of Alternating Relay A 24 A B A Standard Duplexor Special Function Duplexor B Control Voltage 24 VAC/DC 48 VDC 48 120 VAC/DC 120 208 VAC 208 240 VAC 240 380-408 VAC (Consult Factory) 480 Type of Voltage VAC or VAC/DC 48 VDC only D Contact Configuration SPDT DPDT (Cross Wired) C DPDT D DPDT (Cross Wired) E Enclosure Style RB-08/OT-08 RB-08/OT-08 RB-11/PF113A RB-08/OT-08 ARA ARB

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