- For an extended address are from 49 bell buttons in connection with a Control module 300026 or 300028 (ML version)
- Incl. a set of screws, grid adapter and adhesive pad
- Working temperature: -10 °C to +65 °C
- Protection type IP20
Dimensions: 130 x 96 x 21 mm
Up to another 48 bell buttons can be connected to the Extension module. An Extension module is always used in connection with a control module. Terminals T/T (potential-free relay contact) are connected to the door opener, the electrical door lock or similar. Potential-free contact max. 36 VDC, 1 A, connected spool min. 8 Ω.