| Product Type |
Insulation monitoring relay |
| Brand |
ABB |
| Series |
CM-IWN.1 |
| Function |
Insulation resistance monitoring of unearthed AC, DC and mixed AC/DC IT systems up to 400 V AC and 600 V DC |
| Electrical Endurance |
100000 cycle |
| Over Voltage Category |
III |
| Rated Control Supply Voltage (Us) |
24 to 240 V AC/DC |
| Rated Insulation Voltage (Ui) |
600 V (supply/measuring; measuring/output); 300 V (supply/output; between output circuits) |
| Rated Operational Current AC-15 (Ie) |
3 A |
| Contact Configuration |
(2) 1CO or (1) 2CO |
| Measuring Range |
1 to 100 kO; 2 to 200 kO; system voltage 0 to 400 V AC / 0 to 600 V DC |
| Output Type |
(2) 1CO, (1) 2CO |
| Rated Current |
4 A |
| Rated Frequency |
DC or 15 to 400 Hz |
| Rated Voltage |
24-240 VAC/VDC |
| Terminal Type |
Push-in terminals |
| Rated Operational Current AC-12 (Ie) |
4 A |
| Rated Operational Current DC-12 (Ie) |
4 A |
| Rated Operational Current DC-13 (Ie) |
2 A |
| Time Range |
Minimum 15 s start-up; maximum 10 s response (pure AC); maximum 15 s response (DC or rectified AC) |
| Minimum Switching Capacity |
24 V / 10 mA |
| Rated Operational Voltage (AC/DC) |
250 V AC / 300 V DC |
| Output |
2 x 1 c/o (SPDT) contacts or 1 x 2 c/o (SPDT) contacts, configurable |
| Short-Circuit Protective Devices |
6 A fast-acting (n/c contact); 10 A fast-acting (n/o contact) |
| Mechanical Durability |
30000000 cycle |
| Colour |
U: Green, F: Red, R: Yellow |
| Conductor Cross Section Flexible |
2 x 0.5 to 1.5 mm² |
| Conductor Cross Section Solid Core |
2 x 0.5 to 1.5 mm² |
| Housing Material |
UL 94 V-0 |
| Model |
Unearthed AC Systems, Unearthed DC Systems, Unearthed Mixed AC/DC Systems, Up to 400 VAC, Up to 600 VDC |
| Mounting Type |
35 x 15 mm DIN Rail, 35 x 7.5 mm DIN Rail |
| Depth |
104.8 mm |
| Height |
85.6 mm |
| Weight |
0.217 kg |
| Width |
45 mm |
| Pollution Degree |
3 |
| Storage Temperature |
-40 to 85 °C |
| Operating Temperature |
-25 to 60 °C |
| IP Rating |
IP50 (housing); IP20 (terminals) |
| Standards and Approvals |
IEC/EN 60947-5-1; IEC/EN 61557-1; IEC/EN 61557-8; EN 50155; IEC 60571; IEC/EN 61373; EN 45545-2 |