| Item condition | New |
| Manufacture name | RM/S4.1 Room Master, MDRC |
| Brand | ABB |
| Categories |
Bus System Devices (KNX & Modbus)
|
| Harmonized System Code | 8538 9091 00 |
| ETIM | EC001584 |
| Mounting method | DRA (DIN-rail adapter) |
| Bus system KNX | Yes |
| With bus connection | Yes |
| Width in number of modular spacings | 8 |
| Degree of protection (IP) | IP20 |
| Bus system KNX radio | No |
| Packing level 1 | 4016779881265 |
| Packing level 2 | 4016779881265 |
| Packing level 3 | 4016779881265 |
| Type of current | AC |
| Number of inputs | 8 |
| Output power | 230 VA |
| Rated operating voltage | 100-230 V |
| Bus system radio frequent | No |
| Bus system Powernet | No |
| Max. switching power | 3680 VA |
| Max. number of switching contacts | 8 |
| Max. number of venetian-blind outputs | 0 |
| Switching current (resistive) | 6 A |
| Remote operation possible | No |
| Ethernet | No |
| Max. switching current | 6 A |
| External signal voltage necessary | Yes |
| Other bus systems | None |
| Number of input channels | 8 |
| Number of output channels | 8 |
| Bus system LON | No |
| Suitable for C-load | Yes |
| LED controlling | No |
| Different phases connectable | Yes |
| Local operation/hand operation | Yes |
| With switch function | No |
| With LED indication | No |