Kessel SG 400 V Mono Notice D'utilisation D'origine page 57

4.5 Further connection possibilities
External signal generator - alarm (option)
- Kessel accessory (Art.No. 20162) (connection see [13])
Potential-free contact (option)
- var. Accessories e. g. warning light (Art.No. 97715)
[13]
Installation and operating manual
010-532_03
57