The RP-Onesto miniature circuit breaker is designed to protect low-voltage networks from overload and short circuit conditions, and supports occasional manual switching of circuits. It carries a rated current of 40A with a C-curve tripping characteristic suited to general lighting and socket circuits.

The single-pole device snaps onto a standard DIN 35mm rail and is rated for indoor IP20 enclosures, making it a direct fit for residential and light-commercial distribution boards.

Key Features

• Single-pole construction for line conductor protection
• Rated current 40A with C-curve tripping characteristic
• Short-circuit breaking capacity 4.5kA
• Rated voltage 240/415V
• Mounts on standard DIN 35mm rail
• Indoor IP20 protection class

Product Benefits

• Protects circuits from sustained overload before damage occurs
• Interrupts short-circuit currents up to 4.5kA to safeguard wiring
• C-curve handles inrush from lighting and standard load circuits
• DIN-rail format clicks into common residential consumer units
• Allows manual on/off switching of the protected circuit when needed

Technical Specifications

• Number of Poles: 1
• Rated Current: 40A
• Short-Circuit Breaking Capacity: 4.5kA
• Tripping Curve: C
• Rated Voltage: 240/415V
• Mounting: Standard DIN 35mm rail
• Ingress Protection: IP20 (indoor)

Why You'll Love It

• Direct DIN-rail fit eliminates adapters or rewiring
• C-curve is the common choice for mixed lighting and socket circuits
• Compact single-module width keeps the consumer unit tidy
• Package includes 1× RP-Onesto miniature circuit breaker 1P/C40A/4.5kA