External button

INS-OB External NO-contact button

External button

INS-OB External NO-contact button

External NO (bell type) universal button. In Aco systems, it can be used e.g. as a direct door opener (when leaving) or as a call to a selected apartment (depending on panel configuration). It can also be used as a doorbell (RING) call in selected receiver models.

Designed for flush or surface mounting after purchasing the optional INS-P-XXS NT box (for INS-OB)

Compatible with all digital group devices: CDN, Inspiro, Familio and COMO.




External NO-contact button (bell type)


2mm thick brushed stainless steel flat front and button


flush-mounted, optional surface-mounting box: INS-P-XXS NT (80x80x34/25,5)

Dimensions (mm)

Mounting backbox 57,8×57,8×31,3

Installation type

2 wires


Screw terminals:
– NO contact, max. 2A, 36VDC


– resistant to vandalism and weather conditions
– working temperature: from -20 to 50ºC
– IP degree of protection for button: IP65
– conversion to surface-mounted version – optional mounting box required: INS-P-XXS NT
– Recommended e.g. for the inside wicket/door to make it easier to open the wicket/door when leaving.
– It can serve as a doorbell (RING function available in selected models of receivers/monitors).
– can be used to make a call to the apartments (depending on the settings of the device to which it is connected)
– compatible with all ACO devices