ABB S803 S803N Miniature Circuit Breaker, 3-Pole, 6A, Type B, 690V ac AC, 36 kA Breaking Capacity

This miniature circuit breaker provides overcurrent protection for three-pole systems in industrial electrical installations. It is designed for DIN‑rail mounting and interrupts fault currents to protect downstream circuits. The device combines thermal and electromechanical tripping to respond to overloads and short circuits and is suitable for installations requiring recognised international standards.

• 36 kA breaking capacity gives strong fault interruption performance
• Type B tripping provides sensitive protection for low inrush loads
• Thermal electromechanical trip supports both overload and short‑circuit detection
• Screw‑terminal design enables secure conductor connections
• IP20/IP40 ratings permit use in controlled industrial environments

• Suitable for three‑phase distribution panels in factories
• Ideal for protecting lighting and small motor circuits
• Used with control panels requiring DIN‑rail mounting
• Can be used for modular switchboard protection schemes

It provides a three‑pole arrangement for simultaneous phase disconnection.

It clips onto standard DIN‑rail systems for Compact panel installation.

It uses a combined thermal and electromechanical mechanism to handle overloads and instantaneous faults.

Conductors are secured via screw terminals to ensure firm electrical contact.

It is rated for operation up to 690 V in AC and DC environments.