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ABB ISL-C 230 is a three-module industrial insulation monitor for 220–240 V AC unearthed IT networks with a fixed 100 kΩ insulation threshold and changeover relay output for remote fault signalling.
£565.70
The ABB ISL-C 230 is an industrial insulation monitoring device for unearthed IT AC networks, designed to continuously supervise insulation resistance between the electrical system and earth. As part of ABB’s Earth Monitoring Devices range, it helps identify the first insulation fault while allowing an IT network to continue operating so the cause can be investigated and corrected.
Designed for 220–240 V AC networks, the ISL-C 230 monitors insulation by applying a DC measuring signal between the isolated network and earth. When the insulation resistance falls below its fixed 100 kΩ threshold, the monitor provides local indication and operates its changeover relay contact for remote signalling.
The ISL-C 230 combines straightforward operation with a compact three-module DIN-rail format. A green ON indicator confirms that the device is operating, a TRIP indicator identifies a low-insulation condition, and a front-mounted TEST button allows the monitoring function to be checked during commissioning and maintenance.
In an unearthed IT electrical network, a first earth fault does not necessarily require the supply to be interrupted immediately. Continuous insulation monitoring is therefore important for identifying deterioration before a subsequent fault can create a more serious electrical or operational problem. The ABB ISL-C 230 continuously supervises the insulation level of 220–240 V AC IT networks by applying a DC measuring signal between the isolated network and earth.
When insulation resistance falls below the 100 kΩ fixed threshold, the ISL-C 230 provides a local low-insulation indication and operates its changeover relay contact so the condition can also be signalled remotely. The TEST pushbutton allows the monitoring function to be checked, while the compact DIN-rail construction makes the device suitable for integration into industrial switchboards and control panels where continuity of supply is important.
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| Time Delay | Fixed | |
|---|---|---|
| Monitoring Function | Insulation | |
| Product group | Earth Monitoring Devices | |
| Series | ISL Industrial Insulation Monitoring Devices | |
| ABB order code | 2CSM444000R1500 | |
| EAN | 8012542942801 | |
| Product type | Industrial insulation monitoring device | |
| Network type | Unearthed IT AC network | |
| Rated operational voltage | 220–240 V AC | |
| Rated control supply voltage | 230 V AC | |
| Control supply frequency | 50/60 Hz | |
| Insulation trip threshold | Fixed at 100 kΩ | |
| Delay time | 0–1 s | |
| Power loss | 4 W at rated operating conditions | |
| Output | Changeover relay contact for low-insulation signalling | |
| Local controls | TEST pushbutton | |
| Local indication | ON and TRIP / low-insulation indication | |
| Mounting type | 35 mm DIN rail | |
| Module width | 3 modules | |
| Width | approx. 52.5 mm | |
| Height | approx. 85.5 mm | |
| Depth | approx. 58 mm | |
| Net weight | approx. 90 g | |
| RoHS status | Compliant with EU Directive 2011/65/EU |
The ABB ISL-C 230 is an industrial insulation monitoring device for unearthed IT AC networks. It continuously monitors insulation resistance to earth so insulation deterioration and first earth faults can be detected and signalled.
The ISL-C 230 is designed for 220–240 V AC isolated IT networks.
The ISL-C 230 has a fixed low-insulation threshold of 100 kΩ. When the monitored insulation resistance falls below this level, the device provides a trip indication and remote signalling through its relay contact.
Yes. The ISL-C 230 includes a changeover relay contact that can be used to transmit a low-insulation condition to a remote indication or control panel.
The ISL-C 230 is designed for 35 mm DIN-rail mounting and occupies three modules, making it suitable for installation within industrial switchboards, distribution boards and control panels.
ABB ISL industrial insulation monitors provide continuous supervision of unearthed electrical networks, with the ISL-C 230 combining 220–240 V AC network monitoring, a fixed 100 kΩ insulation threshold, local fault indication and remote relay signalling in a compact three-module DIN-rail format.
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