Circuit breaker Hager SVN411 — 1-pole MCB, 17.5 mm width, IP20

Hager SVN411 is a compact 1-pole miniature circuit breaker (MCB) designed to provide overcurrent protection for single-phase circuits in residential and commercial distribution boards. The device has a slim 17.5 mm width and IP20 finger protection, making it suitable for standard DIN-rail mounting in consumer units and small distribution panels. The breaker interrupts overloads and short-circuits quickly to protect wiring and connected equipment.

Advantages

The Hager SVN411 offers a narrow footprint that saves space in crowded panels while maintaining reliable tripping performance for typical household and light commercial loads. Its standardized form factor and DIN-rail compatibility simplify installation and replacement. With IP20 protection and clear mechanical switching, it provides straightforward operation and predictable behavior under fault conditions.

Suitable for

Key specifications

How to use

Mount the MCB on a standard DIN rail inside the distribution board. Ensure the supply is isolated before wiring and follow local electrical regulations when making connections. Connect the incoming phase conductor to the breaker line terminal and the outgoing load conductor to the load terminal, then tighten terminals to the recommended torque. After energizing, verify correct operation by switching the breaker on and off; in the event of an overload or short-circuit the device will trip and isolate the affected circuit.

Recommendations

Use this 1-pole MCB for single-phase circuits only and coordinate it with upstream and downstream protective devices according to applicable wiring rules. Perform periodic visual inspections of the enclosure and connections, and replace the breaker if mechanical switching becomes stiff or contacts show signs of overheating.