AEG 1-Pole 20A Type B Miniature Circuit Breaker 6kA EP61 B20 4TQA667132R0000

Electricians and panel builders use this AEG miniature circuit breaker to protect 230/400 V AC circuits from overload and short-circuit currents. The 1-pole EP61 B20 trips magnetically on Type B characteristics, making it suitable for socket outlets, lighting, and control circuits with moderate inrush currents.

Key specifications

• Rated current: 20 A
• Tripping characteristic: Type B
• Number of poles: 1
• Rated short-circuit breaking capacity: 6 kA
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Mounting: DIN rail (EN 60715)
• Module width: 1 module (17.5 mm)
• Connection: screw terminals, 1–25 mm² solid / 1–16 mm² flexible
• Operating temperature: -25 °C to +55 °C
• Mechanical endurance: 20,000 cycles
• Electrical endurance: 10,000 cycles

Why choose it

The EP61 B20 combines a compact 17.5 mm width with a 6 kA breaking capacity, providing reliable protection in residential and commercial distribution boards. Its screw terminals accept a wide range of conductor sizes, simplifying installation.

Ideal use cases

• Protection of socket outlet circuits in homes and offices
• Lighting circuits with LED or fluorescent loads
• Control circuits in industrial panels

Good to know

The device is designed for DIN rail mounting and complies with IEC/EN 60898-1. It has an energy limiting class of 3 and provides IP20 protection at the terminals and IP40 for the housing.