Acti9 iSD+OF auxiliary contact 2-100 mA 2CO A9A26919

### Auxiliary contact for expanding electrical installations

This modular Acti9 iSD+OF auxiliary contact is a key element in systems requiring additional information about the circuit status. Designed to work with Acti9 overcurrent and residual current circuit breakers, it enables the transmission of signals to controllers and monitoring systems. This allows installers to create more advanced and efficient solutions, and end-users to gain full control over the operation of the installation.

The iSD+OF contact is compatible with a wide range of Acti9 devices, including iID, iDPN Vigi, iSW-NA, ARA, iC60 and RCA. In older installations, it can also be used with iC40, iC40 ARC, iCV40 and iCV40 Vigi ARC series – simply use the appropriate fork busbar. This versatility makes it an ideal solution for both new projects and modernization of existing installations.

Functionality and application

The contact has two changeover contacts (2CO), which means two independent circuits that can change their state depending on the status of the main circuit breaker. The rated current of the contact is in the range of 2-100mA at a voltage of 24-240V AC/DC. This allows it to be used to signal various operating states of the device – e.g. switching on, switching off due to overload or short circuit.

• Status signaling: Transmits information about the circuit status to control or visualization systems.
• Functionality expansion: Enables integration with other devices to create more complex automation systems.
• Monitoring: Allows remote monitoring of the circuit status and quick response to possible failures.
• Application: Ideal for commercial buildings, critical infrastructure buildings, healthcare, industry and data centers.

Installation and technical parameters

Installation of the auxiliary contact is extremely simple – it is done by snapping onto the Acti9 circuit breaker. Screw connections allow connection of wires with a cross-section from 0.5 mm² to 4 mm², both rigid and flexible. High quality workmanship guarantees reliable operation for a long time.

The width of the contact is 0.5 modules (9mm), which allows saving space in the switchgear cabinet. The rated voltage is 240 V AC/DC and the switching current is 0.002 A. The rated insulation voltage (Ui) is 500 V and the impulse withstand voltage (Uimp) is 4 kV. The contact has a protection degree of IP20 and is adapted to work at a temperature from -25°C to +70°C. It meets the requirements of EN/IEC 60947-5-1 and EN/IEC 60947-5-4 standards, ensuring safety of use and compliance with applicable regulations.

The Acti9 iSD+OF auxiliary contact is a reliable solution for professionals looking for high-quality components for building safe and functional electrical installations.