Siemens SENTRON 5SY4 Miniature Circuit Breaker, 4-Pole, 16A, Type B, 400V ac AC, 72 V dc DC, 10 kA Breaking Capacity

This miniature circuit breaker is designed for efficient protection in electrical systems. The Siemens MCB, with a 4-pole configuration, has a current rating of 16 A and is suitable for 400V AC applications. Compact dimensions of 90mm in length, 72mm in width, and 76mm in depth make it Ideal for DIN rail mounting, ensuring hassle-free installation in various environments.

• Type B MCB provides reliable protection against overcurrents
• 10 kA breaking capacity for robust circuit safety
• Screw Terminal connections for secure and easy wiring
• Mechanical lifespan of 10000 cycles enhances durability
• Halogen free construction promotes safer operation

• Utilised in industrial automation systems
• Suitable for commercial electrical distribution boards
• Ideal for machinery and mechanical engineering
• Used in residential electrical systems requiring circuit protection

The 4-pole design enables effective circuit interruption across multiple phases, making it suitable for three-phase systems and NEUTRAL conductors in industrial applications.

The Type B tripping characteristic ensures this device responds effectively to typical load conditions, protecting against overloads and short circuits in standard electronic applications.

It is recommended for indoor use only, as it has an IP20 rating which does not offer protection from moisture or dust commonly found outdoors.

This circuit breaker operates efficiently across a temperature range of -40°C to +70°C, ensuring reliability in diverse working conditions.