Miniature Circuit Breaker Schneider Electric A9F03316, 16 A, 133 V, 10 kA, IP20, 54×78.5×91 mm

Schneider Electric A9F03316 is a miniature circuit breaker designed for protection of electrical circuits in residential and light commercial installations. With a rated current of 16 A and a rated voltage of 133 V, this compact device combines reliable overcurrent protection with a high breaking capacity of 10 kA. Its IP20 protection rating and modest dimensions (54×78.5×91 mm) make it suitable for mounting in distribution boards and control panels where space is limited.

Advantages

The breaker provides stable overcurrent interruption up to 10,000 A, ensuring effective fault isolation. Its 16 A rating covers common branch circuit loads while the 133 V rated voltage supports low-voltage systems. The compact footprint helps save DIN-rail space and simplifies wiring in confined panels. IP20 protection offers basic finger-safe contact protection appropriate for enclosed electrical cabinets. The device follows industry design standards for miniature circuit breakers, facilitating straightforward replacement or integration into existing systems.

Suitable for

• Protection of lighting and socket circuits in homes and apartments
• Overcurrent protection in small commercial units and offices
• Installation in compact distribution boards and modular control panels
• Applications requiring a 16 A trip rating and 133 V system compatibility

Key specifications

• Rated current: 16 A
• Rated voltage: 133 V
• Breaking capacity: 10 kA
• IP rating: IP20 (finger-safe in enclosed panels)
• Dimensions (W×D×H): 54 × 78.5 × 91 mm

How to use

Mount the miniature circuit breaker on a standard DIN-rail inside an enclosed distribution board. Connect the line and load conductors to the designated terminals, ensuring correct tightening torque and secure electrical connections. Verify the breaker is compatible with the circuit voltage and load characteristics before energizing. After installation, test the circuit and trip function according to local electrical codes and safety procedures to confirm correct operation.

Recommendations

Use this breaker in enclosed panels or distribution boards to maintain IP20 protection. Ensure coordination with upstream and downstream protective devices for selective tripping where required. Replace or service the breaker only with the power disconnected and by a qualified electrician, following applicable safety standards and installation instructions.