The Wico miniature circuit breaker (1P/D20A/4.5kA) is a single-pole device rated at 20A with a 4.5kA short-circuit breaking capacity. It is designed to protect low voltage electrical networks from overload and short-circuit faults, as well as for infrequent switching duty.

Compliant with EN 60898-1 and CE marked, it mounts directly on a standard 35mm DIN rail and carries an IP20 indoor protection rating. The D tripping curve makes it appropriate for circuits with high inrush currents.

Key Features

• Single-pole (1P) construction for single-phase circuit protection
• D tripping curve — suited to circuits with high inrush current
• 4.5kA rated short-circuit breaking capacity
• DIN 35mm rail mounting for standard distribution boards
• IP20 protection rating for indoor installations
• EU origin

Product Benefits

• 20A rated current protects against overload damage to wiring and equipment
• D-curve behaviour prevents nuisance tripping on high-inrush loads
• 4.5kA breaking capacity handles fault currents typical of low voltage installations
• DIN rail clip-on installation simplifies panel assembly and replacement
• EN 60898-1 and CE compliance confirms it meets recognised safety standards

Technical Specifications

• Poles: 1
• Rated Current: 20A
• Short-Circuit Breaking Capacity: 4.5kA
• Tripping Curve: D
• Rated Voltage: 230/400V
• Mounting: DIN 35mm rail
• Protection Class: IP20 (indoor)
• Standards: EN 60898-1, CE
• Origin: EU

Why You'll Love It

• Clip-on DIN rail mounting needs no tools beyond a screwdriver for final connections
• Single-pole format keeps panel space to a minimum
• EN 60898-1 compliance gives confidence for use in residential and light commercial panels
• Package includes 1× Wico miniature circuit breaker 1P/D20A/4.5kA