The Wico miniature circuit breaker (MCB) is a 1-pole device rated at 40A with a 4.5kA short-circuit breaking capacity. Its D tripping curve makes it suited to circuits with high inrush loads where a slower thermal response is required before tripping. It protects low-voltage networks from both overload and short-circuit faults, as well as serving occasional switching functions.

The breaker mounts on a standard DIN 35mm rail and is rated for 230/400V installations. It carries IP20 protection for indoor distribution boards and conforms to EN 60898-1 and CE standards. Origin is EU.

Key Features

• 1-pole (single-pole) configuration
• D tripping curve — delayed thermal response for high-inrush loads
• 40A rated current
• 4.5kA short-circuit breaking capacity
• DIN 35mm rail mount
• Conforms to EN 60898-1 and CE

Product Benefits

• D curve characteristic avoids nuisance tripping on circuits with motors or transformers that draw high start-up current
• 4.5kA breaking capacity handles the fault levels typical of residential and light commercial distribution boards
• DIN rail mounting integrates directly into standard consumer units and distribution panels
• EU-origin manufacture supports compliance documentation requirements

Technical Specifications

• Brand: Wico
• Number of Poles: 1
• Rated Current: 40A
• Short-Circuit Breaking Capacity: 4.5kA
• Tripping Curve: D
• Rated Voltage: 230/400V
• Mounting: Standard DIN 35mm rail
• Protection Rating: IP20 (indoor)
• Standards: EN 60898-1, CE
• Origin: EU

Why You'll Love It

• Standard DIN 35mm rail mount fits directly into existing distribution boards without adapters
• EN 60898-1 compliance ensures the breaker meets verified performance and safety requirements
• Single-pole 40A rating covers a wide range of domestic and light commercial circuit protection needs
• Package includes 1× Wico Miniature Circuit Breaker 1P/D40A/4.5kA