Models |
ARM55D |
ARM55W ARM55T (with switch) |
ARM55C |
Usage |
Mechanical Relay
Dry Contact Output
(“a” contact (NO))
(Single / Dual-redundant) |
Mechanical Relay
Wet Contact Output
(Single / Dual-redundant) AUTO/OFF/ON switch
(only for 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 (require external 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 power supply) |
- |
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 field device terminals and cases: 2 kV
Between 24 V power terminals and cases: 500 V
Between 24 V power terminals and field device terminals: 2 kV |
Between field device terminals and cases: 2 kV
Between 24 V power terminals and cases: 500 V
Between 24 V power terminals and field device terminals: 2 kV |
Between field device terminals and cases: 2 kV
Between 24 V power terminals and cases: 500 V
Between 24 V power terminals and field 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 |