Miniature Circuit Breaker Schneider Electric A9F04216, 16 A, 133 V, 10 kA, IP20, 36 mm

Schneider Electric A9F04216 is a miniature circuit breaker designed for low-voltage protection in industrial and commercial electrical installations. With a rated current of 16 A and a rated voltage of 133 V, this compact device provides overcurrent protection and short-circuit interruption up to a breaking capacity of 10 kA. The unit's IP20 degree of protection and 36 mm width allow installation in distribution panels and control cabinets where space is limited and reliable circuit protection is required.

Advantages

This miniature circuit breaker combines compact dimensions with a high breaking capacity, enabling secure protection of circuits while minimizing the space occupied in a panel. The 16 A rating supports common branch circuits and equipment loads, and the IP20 protection ensures basic prevention against contact with live parts. Robust construction and standardized mounting simplify integration into existing DIN-rail systems and electrical switchgear.

Suitable for

• Branch circuit protection for lighting and small power circuits
• Protection of control circuits in industrial automation cabinets
• Distribution panels in commercial buildings and retail spaces
• Retrofit or expansion of existing switchboards with limited installation depth

Key specifications

• Rated current: 16 A
• Rated voltage: 133 V
• Breaking capacity (short-circuit interrupting): 10,000 A (10 kA)
• Protection degree: IP20
• Mounting width: 36 mm
• Approximate dimensions: 36 mm (W) × 78.5 mm (D) × 91 mm (H)

How to use

Mount the miniature circuit breaker onto a compatible DIN rail inside a distribution board or control cabinet following local electrical codes. Ensure the supply voltage does not exceed the rated voltage and that connected loads do not exceed the 16 A rated current. Make proper line and load terminations with suitable conductors and torque settings as specified by installation standards. Verify correct operation by switching the breaker on and off and test protective functions after installation, following all safety procedures including isolation of supply before work.

Usage recommendations

Select this 16 A miniature breaker when protecting small power or lighting circuits where a compact device with a 10 kA breaking capacity is required. For environments with higher ingress protection or different voltage requirements, use a device with appropriate IP rating or rated voltage. Periodically inspect terminations for tightness and signs of overheating, and test the breaker as part of routine maintenance in accordance with applicable regulations.