Schelinger A02-G8-1P-B20 Miniature Circuit Breaker 6kA 1P B 20A VDE

Electricians and panel builders rely on the Schelinger A02-G8-1P-B20 to protect lighting and socket circuits in residential and commercial installations. This single-pole miniature circuit breaker trips instantly on short circuits and follows a delayed thermal response for overloads, keeping wiring and connected equipment safe. Its compact 18mm width fits standard 35mm DIN rails, making it a drop-in replacement for most distribution boards.

Key specifications

• Rated current: 20 A
• Tripping curve: B (magnetic trip 3–5 In)
• Breaking capacity: 6 kA at 230/400 V AC
• Single pole (1P), 1 module wide
• Voltage rating: 230/400 V AC, 50/60 Hz
• Terminal capacity: 1–25 mm² (rigid/flexible)
• DIN rail mount (35 mm)
• Protection degree: IP20 terminals, IP40 enclosure
• Electrical endurance: 10,000 operations
• Mechanical endurance: 20,000 operations
• Standards: IEC/EN 60898-1, VDE, CE
• Operating temperature: -25°C to +55°C
• Energy limiting class: 3
• Overvoltage category: III, pollution degree 2
• Rated impulse withstand voltage: 4 kV

Why choose it

The B-curve characteristic suits general-purpose circuits with moderate inrush currents, such as lighting and socket outlets. The 6 kA breaking capacity handles typical residential and light commercial fault levels, while screw terminals accept a wide range of conductor sizes for flexible wiring. VDE certification confirms compliance with strict European safety standards.

Ideal use cases

• Residential distribution boards
• Office and retail lighting circuits
• Socket outlet protection
• Control panel feeder protection
• Retrofit projects requiring 18mm width

Good to know

Installation requires a standard 35mm DIN rail and a suitable busbar or cable connection. The breaker is not suitable for DC circuits or high inrush loads like large motors; for those, consider a C or D curve. Always verify short-circuit current at the installation point does not exceed 6 kA.