Hager MBN420 4-Pole Miniature Circuit Breaker B-Curve 20A 6kA

Protect your electrical circuits from overload and short-circuit with the Hager MBN420 miniature circuit breaker. This 4-pole MCB with B-curve tripping characteristic is rated for 20 A and provides a breaking capacity of 6 kA. It is designed for DIN rail mounting and is suitable for residential and commercial applications.

Who is it for

Electricians, panel builders, and maintenance professionals who need reliable circuit protection for three-phase systems. Ideal for protecting cables and equipment against overcurrents.

Main features

• 4-pole MCB for three-phase circuits
• B-curve for general load protection
• Rated current: 20 A
• Breaking capacity: 6 kA
• DIN rail mounting, width 4 modules (70 mm)
• Screw terminals for rigid and flexible conductors

Specifications

• Number of poles: 4
• Tripping characteristic: B
• Rated current: 20 A
• Rated short-circuit breaking capacity (Icn): 6 kA
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Mounting type: DIN rail
• Terminal type: screw
• Terminal capacity rigid: 1 - 25 mm²
• Terminal capacity flexible: 1 - 16 mm²
• Degree of protection: IP20
• Operating temperature: -25 to 70 °C
• Standard: EN 60898-1
• Energy limitation class: 3
• Electrical endurance: 20,000 cycles
• Mechanical endurance: 20,000 cycles
• Module width: 4 modules (70 mm)

Tips

Ensure the MCB is installed by a qualified electrician and that the circuit is de-energized before installation. Select the appropriate cable size according to local regulations.