Residual Current Device (RCD) iID-25-2-30-Si 25A 2-pole 30mA type Si A9Z31225

Residual Current Device – Protection and Safety of Installations

This two-pole residual current device iID-25-2-30-Si is a key element ensuring safety in every electrical installation. Designed to protect people from electric shock and to protect circuits against the effects of short circuits and overloads, it is a reliable cut-off point in the event of detecting irregularities. Its compact size (2 modules wide) allows for easy mounting in a distribution box, saving valuable space.

Functionality and technical parameters

The device is characterized by a rated current of 25A and a sensitivity of 30mA, which means it reacts to leakage currents even at such low values. This ensures quick and effective protection, minimizing the risk to life and property. The rated voltage of 230V and frequency of 50/60Hz make it compatible with most standard electrical installations in Poland. Equipped with a lock, it prevents accidental switching on after being switched off due to the operation of the protection.

• High surge current resistance: withstands surge currents up to 3kA, which increases its reliability in the event of sudden overvoltages.
• Wide range of connectable conductors: allows connection of multi-strand conductors with a cross-section from 1 to 25 mm² and solid conductors from 1 to 35 mm², providing flexibility during installation.
• Short-circuit strength: has a short-circuit strength of 1.5kA, which guarantees its proper operation even in difficult operating conditions.
• Type Si: indicates high resistance to electromagnetic interference, which translates into stable operation and minimizes the risk of false alarms.
• Operating temperature: can operate in a wide range of ambient temperatures, from -25°C to 60°C, making it suitable for use in various environmental conditions.
• DIN rail mounting: standard DIN rail mounting simplifies and speeds up installation and device replacement.

Application and compliance with standards

The iID-25-2-30-Si residual current device is used in electrical installations in residential, commercial and industrial buildings. It is ideal for protecting lighting circuits, socket outlets and electrical appliances exposed to moisture or direct human contact. It meets the requirements of EN/IEC 61008-1, which confirms its compliance with European safety standards. Its protection class IP20 provides protection against finger contact and access to hazardous live parts inside the housing. Additionally, it has a rated impulse withstand voltage Uimp of 6kV, which increases its resistance to transient overvoltages.