| General |
| Model | Basic device |
| Release-delay | 0 |
| Width | 85 |
| Height | 85 |
| Depth | 58 |
| Suitable for monitoring of position switches | |
| Suitable for monitoring of emergency-stop circuits | |
| Suitable for monitoring of valves | |
| Suitable for monitoring of optoelectronic protection equipment | |
| Suitable for monitoring of tactile sensors | |
| Suitable for monitoring of magnetic switches | |
| Suitable for monitoring of proximity switches | |
| Rail mounting possible | |
| With detachable clamps | |
| With start input | |
| With muting function | |
| With feedback circuit | |
| With approval for BG BIA | |
| With approval according to UL | |
ISL-A 24-48 insulation monitor, LED 24-48 V AC/DC, adjustable threshold values