Marsh Bellofram Diversified Electronics Division ARM Series Alternating Controllers - Marsh Bellofram - #1

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800.727.5646 atcdiversified.com Diversified Electronics ARM Series 257 Al te r n a t in g C o n t r o l l e r s These Triplex and Quadraplex Controllers are available with either Sequence-On-Simultaneous-Off (SOSO) or First-On-First-Off (FOFO) output logic. The special function models are differentiated by a rotary switch that allows any output to be locked as the lead load or any one load to be omitted while sequencing only the remaining loads. In addition to load omission and lead selection, the expandable model can be set for 2, 3, or 4 load operation with either SOSO or FOFO logic. All models feature intrinsically safe inputs and logic that allows the outputs to operate properly even if one of the inputs fails to open or close. For example: if the off switch fails to close, the lead load will not energize until both the lead and the lag switches close. An inrush delay on all models reduces line sags by preventing multiple loads from energizing simultaneously. Alternating Relays & Controllers // ARM Series 7M26 UL913 • 3 and 4 Load Output Models • 2-4 Load Expandable Model • Intrinsically Safe Inputs \\\SPECIFICATIONS CONTROL VOLTAGE 24 or 120 VAC ±10%, 50/60 Hz SWITCH VOLTAGE 5.1 Volts open circuit SWITCH CURRENT 10 ìAmps short circuit POWER REQUIRED 2.5 VA SENSITIVITY 100 k ohm ISOLATION 2500V Input to Output DUTY CYCLE Continuous RESPONSE TIMES Power Up >>>>> ARM E Control Voltage 24 A E 24 VAC 120 VAC 120 Number of Loads Output Logic Special Functions 3 SOSO none 3 FOFO none B 3 SOSO Omit/Lead Select C 3 FOFO Omit/Lead Select D 4 SOSO none G 4 FOFO none H Enclosure Mount No Suffix Surface Mount P Suffix Panel Mount P