Models | ARM55D | ARM55W ARM55T （with switch） | ARM55C |
Usage | Mechanical Relay DryContact Output （“a”contact （NO）） （Single / Dual-redundant） | Mechanical Relay WetContact Output （Single /Dual-redundant） AUTO/OFF/ON switch （onlyfor ARM55T） | Mechanical Relay Dry Contack Output （“a” contact or “b” contact （NO or NC）） （Single / Dual-redun or dant）（*6） |
Contact Points | 32-point | 32-point | 32-point |
Terminals for Field Device Connection | M4 screws | M4 screws | M3.5 screws （*5） （M4 in power input part） |
Modules | ADV551 （DO: 32-point） + ATD5A （Terminal block）ADV561 （DO: 64-point）（*1） | ADV551 （DO: 32-point） + ATD5A （Terminal block）ADV561 （DO: 64-point）（*1） | ADV551 （DO: 32-point） + ATD5A （Terminal block）ADV561 （DO: 64-point）（*1） |
Signal Cables | AKB331 （for 32-point）AKB337 （for 64-point） | AKB331 （for 32-point）AKB337 （for 64-point） | AKB331 （for 32-point）AKB337 （for 64-point） |
Maximum Load （*2） | 250 V AC: 2 A per point 30 V DC: 2 A per point 125 V DC: 0.1 A per point （*3） | 250 V AC: 0.6 A per point 30 V DC: 0.6 A per point 125 V DC: 0.1 A per point （*3） | 30 V DC: 1.5 A per point |
Minimum Load | 5 V, 10 mA | 5 V, 10 mA | 5 V, 10 mA |
Power Supply Voltage and Current Consumption of Internal Circuit （requireexternal power supply） | 24 V DC Max.0.65 A | 24 V DC Max.0.65 A | 24 V DC Max.0.85 A |
Power Supply for Field Device （require external powersupply） | - | Dual-line （supply power per 16-point） 250 V AC: Max. 9.6 A 30 V DC: Max. 9.6 A 125 V DC: Max. 1.6 A | - |
Insulation Resistance | At least 10 MΩ （500 V DC） | At least 10 MΩ （500 V DC） | At least 10 MΩ （500 V DC） |
Withstanding Voltage | Between ?eld device terminalsand cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV | Between ?eld device terminalsand cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV | Between ?eld device terminalsand cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV |
Ambient Temperature and Humidity | 0 to 50 °C, 10 to 90 %RH | 0 to 50 °C, 10 to 90 %RH | 0 to 50 °C, 10 to 90 %RH |
Standards | Safety Standard [CSA] （*3）EMC standards [CE Marking], [C-Tick Marking], [KC Marking] | Safety Standard [CSA] （*3）EMC standards [CE Marking], [C-Tick Marking], [KC Marking] | EMC standards [CE Marking], [C-Tick Marking], [KC Marking]（*4） |
Size | W: 482.6 mm x H: 132.5 mm （3U） | W: 482.6 mm x H: 177 mm （4U） | W: 482.6 mm x H: 132.5 mm （3U） |
Weight | 2.2 kg | 2.6 kg | 2.2 kg |
