CUDIS RC440/030 40A 30MA 4P RCD

The CUDIS RC440/030 is a 4‑pole Residual Current Device (RCD) designed to provide additional protection against electric shock and to reduce the risk of fire by disconnecting the circuit when earth leakage is detected. With a 40A rated current and 30mA sensitivity, it is suitable for protecting three‑phase (3P+N) circuits in distribution boards where additional protection is required. The unit mounts on standard DIN rail and includes a test button for routine verification.

• Manufacturer: CUDIS Limited
• Model: RC440/030
• Device type: RCD (Residual Current Device)
• Rated current: 40A
• Rated residual (trip) current: 30mA
• Poles: 4 (3P+N)
• Application: Additional protection for three‑phase circuits
• Mounting: DIN rail
• Features: Test button for periodic testing; clear trip indication
• SKU/Reference: cudis-rc440030-40a-30ma-4p-rcd-456054