Residual-current circuit breaker Schneider Electric DPN Vigi K A9D22616 — 2P, 16A, B curve, 30 mA, type AC

Schneider Electric DPN Vigi K A9D22616 is a combined residual-current and overcurrent protection device (RCBO) that integrates earth-leakage detection with short-circuit and overload protection in a single 2-pole unit. Rated for 16 A with a B tripping characteristic and 30 mA residual current sensitivity (type AC), this device is suited for protecting individual circuits in residential and light commercial electrical installations where detection of AC leakage currents is required.

Advantages

The RCBO combines residual-current and overcurrent protection in a compact module, saving space in distribution boards. The B curve trip characteristic ensures reliable operation for general circuits with moderate inrush currents, while 30 mA sensitivity provides protection against potentially harmful earth-leakage that can cause electric shock. The 2-pole configuration enables neutral and live conductor protection in single-phase circuits, simplifying wiring and circuit segregation.

Suitable for

• Protection of individual lighting and socket circuits in homes
• Circuit protection in small offices and retail premises
• Safeguarding appliances and branch circuits requiring AC-type residual-current detection
• Upgrades or replacements in distribution boards where space is limited

Key specifications

• Poles: 2-pole unit for single-phase circuits
• Rated current: 16 A
• Tripping characteristic: B curve (suitable for general-purpose circuits)
• Residual current sensitivity: 30 mA
• Residual current type: AC (detects sinusoidal alternating leakage currents)
• Function: Combined residual-current and overcurrent (RCBO)
• Mounting: DIN-rail compatible compact module

How to use

Install the RCBO in the consumer unit on the DIN rail following local electrical regulations and with the mains supply isolated. Connect the incoming live and neutral conductors to the designated terminals and route the protected circuit conductors to the load-side terminals. Ensure correct orientation and tighten terminal screws to the manufacturer’s recommended torque. After installation, test the residual-current function using the device test button and perform insulation and continuity checks as required by local standards before re-energising the circuit.

Usage recommendations

Use this RCBO for protecting individual circuits where both earth-fault and overcurrent protection are needed in a single module. Verify that the 16 A rating and B curve are appropriate for the connected loads, and confirm that type AC residual-current detection meets requirements for the specific installation. Carry out periodic testing of the residual-current trip and follow local maintenance schedules to ensure ongoing protection performance.