
The ABB SW203M-C16 (1SYS673015R0164) is a robust, 3-pole miniature circuit breaker engineered for reliable overload and short-circuit protection in commercial and industrial electrical distribution networks. Featuring a 16 A rated current and a Type C tripping curve, this 10 kA breaking capacity breaker is optimized for multi-phase circuits with moderate inrush currents, such as motor controls, lighting groups, and commercial sub-feeders.
3-Pole Configuration: Designed with 3 Poles (3P) to provide simultaneous interruption and protection across three-phase electrical circuits.
16 A Rated Current & C-Curve: Features a 16 A rating combined with a Type C tripping profile (magnetic release at 5–10 $In$), making it ideal for loads with moderate surge currents like motors and lighting arrays.
10 kA Breaking Capacity: Offers a robust 10 kA short-circuit breaking capacity, ensuring safe fault clearance in commercial and light industrial switchboards.
DIN Rail Mountability: Engineered for rapid, secure snap-on installation onto standard 35 mm DIN rails within enclosures and distribution boards.
Secure Terminal Design: Equipped with captive screw terminals that facilitate reliable conductor connection and prevent loose wiring faults.
Applications
Commercial Three-Phase Distribution: Ideal for protecting three-phase sub-circuits, small commercial distribution boards, and general power outlets.
Lighting & HVAC Sub-Feeders: Commonly deployed to safeguard commercial lighting circuits, fan coil units, and ventilation equipment.
Light Industrial Machinery: Suitable for control panels and automation setups requiring reliable 3-phase overload and short-circuit protection up to 16 A.
Buyer Guidance
Verify Phase Requirements: Ensure that your circuit layout requires a 3-pole configuration (without neutral switching) rather than a single-pole or 4-pole variant.
Check Fault Level Ratings: Confirm that the 10 kA breaking capacity meets or exceeds the prospective short-circuit current calculated for your distribution board location.
Professional Installation: Electrical protective devices should always be installed by a qualified electrician in strict compliance with local wiring regulations and safety standards.

Schneider Electric
Model: LRD3353