25A 2 Pole 30mA A Type RCD (NL1‑63‑225/30‑A)

The 25A 2 Pole 30mA A Type RCD (NL1‑63‑225/30‑A) from Chint is a reliable residual current device designed to protect people and property from dangerous earth leakage faults. Built to high safety standards, this compact unit is ideal for use in domestic, commercial and light industrial electrical distribution boards.

This RCD continuously monitors the balance of current between live and neutral conductors. If an imbalance occurs, such as when current leaks to earth, the device quickly disconnects the circuit to help prevent electric shock and reduce the risk of fire. With a rated current of 25 amps, this RCD is suitable for typical lighting and power circuits in single phase applications. The 30mA trip sensitivity ensures effective protection against direct contact hazards, meeting standard safety requirements.

Unlike basic AC type RCDs, this A Type unit detects both sinusoidal alternating and pulsating residual currents, making it more compatible with modern electrical loads that include electronic equipment, LED lighting and variable speed drives. Its 2 pole design protects both the live and neutral conductors simultaneously, ensuring complete disconnection of the circuit when needed.

Installation is straightforward with a standard 35mm DIN‑rail mount, allowing quick integration into consumer units, sub‑boards or control panels. The device also features an IP20 protection rating for safe use in enclosed electrical distribution equipment. Compact yet durable, the NL1‑63‑225/30‑A is a dependable choice for tradespeople and installers looking for quality and consistent performance.

Whether you are building new installations or upgrading existing circuits, this RCD delivers essential residual current protection where it matters most.