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RM 8 S KNX
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Theben
Product Description
Function description:
- 8-way switching actuator FIX1
- LED switching status display for each channel
- Manual operation on device (even without bus connection)
- Adjustable characteristics: e.g. switching, delayed switching, pulse function
- Links, type of contact (NC contact/NO contact) and participation in central commands such as continuous On, continuous Off, central switching and save/call up scene
- Switching functions: On/Off, pulse, On/Off delay, staircase light with warning
- Logical links: e.g. lock, AND, release, OR
Technical Details
| Operating voltage KNX | Bus voltage, ≤4 mA |
| Operating voltage | 110 - 240 V AC 50 - 60 Hz |
| Stand-by consumption | ~0.3 W |
| Installation type | DIN rail |
| Width | 4 modules |
| Type of connection | Terminal screws | Bus connection: KNX bus terminal |
| Max. cable cross section | Solid wire: 0.5 mm² (Ø 0.8) to 4 mm² | Stranded wire with end sleeve: 0.5 mm² to 2.5 mm² |
| Number of channels | 8 |
| Type of contact | NO contact, 16 A, 3 A |
| Opening width | < 3 mm |
| Resistive load | 3680 W |
| Incandescent/halogen lamp load | 2000 W |
| Fluorescent lamp load (conventional) parallel-corrected | 1300 W (140 µF) |
| Fluorescent lamp load (conventional) not corrected | 2000 VA |
| Fluorescent lamp load (electronic ballast) | 1200 W |
| Energy saving lamps | 300 W |
| LED lamp < 2 W | 55 W |
| LED lamp 2-8 W | 600 W |
| LED lamp > 8 W | 600 W |
| Inrush current | max. 800 A / 200 µs |
| Voltage output | 240 V AC |
| Switching output | Potential-free |
| Switching of various phases | Possible |
| Suitable for SELV | Yes if all channels switch at SELV |
| C load | No |
| Type | Module FIX1 |
| Ambient temperature | -5°C ... 45°C |
| Type of protection | IP 20 |
| Protection class | II |
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Product Reviews
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Good product but there are better alternatives
Posted by Nowshad on 19th Aug 2021
I loved the features, which even expensive products from Siemens did not have. The fact that I could use simple logic within this device is helpful. The timing feature on each channel saves the use of Timing devices in the topology. I would have given this device a 4 star but the manual control pushed it down for me. When operating or working on the device, there is no manual override to prevent KNX telegrams from working the channels. This is not a problem if the client is well informed and the users are instructed against switching during maintenance. I need this feature in the actuators since most of the buildings I install in do not have proper documentation. Even if they did, electrical installers often deviate from the plan. Good product over all.