The Bosch SKM 120 Single Action Call Points Installation Guide provides mounting instructions, technical specifications, and ordering information for indoor…
The SKM 120 Single Action Call Points are manual fire alarm devices that trigger an alarm when the protective glass pane is broken, moving the button forward and activating a microswitch and indicator LED. Variants are available for indoor (Form G) and outdoor (Form H) installations, with the outdoor version featuring a sealed cover.
Installation guidelines specify a mounting height of 1400 mm ± 200 mm, visible placement along escape routes, and a maximum spacing of 100 m between devices (80 m per VdS). Technical specifications include operating voltage, dimensions, housing material, protection class, and temperature ranges. Ordering information and accessory part numbers are also provided.
| Operating voltage | 19 V DC – 30 V DC |
|---|---|
| Dimensions (W × H × D) | 135 × 135 × 36 mm |
| Housing material | Plastic (ASA) |
| Color | Red, RAL 3001 |
| Weight | Approx. 450 g |
| Protection class (IP) – Form G | IP 52 |
| Protection class (IP) – Form H | IP 54 |
| Operating temperature – Form G | -10 °C … +55 °C |
| Operating temperature – Form H | -25 °C … +70 °C |
The device should be mounted at an installation height of 1400 mm ± 200 mm measured from the middle of the call point to the floor.
Manual call points should not be spaced more than 100 m apart as per DIN 14675.