Noark Ex9BN 3P B20 Interruttore automatico magnetotermico 6kA, curva B, 20A, 3 poli

The Noark Ex9BN 3P B20 is a high-quality miniature circuit breaker (MCB) designed for reliable overcurrent protection in residential, commercial, and industrial electrical installations. With a rated current of 20A and a B-curve tripping characteristic, it provides fast response to short circuits and overloads, ensuring safety and equipment longevity. This 3-pole breaker complies with EN 60898-1 and offers a breaking capacity of 6kA, making it suitable for a wide range of applications.

Advantages

This MCB delivers robust performance with a compact design, easy DIN rail mounting, and high breaking capacity. Its B-curve characteristic is ideal for protecting resistive and lighting loads, while the IP20 terminals and IP40 front panel provide protection against dust and accidental contact. The product is built to last with 10,000 electrical and 20,000 mechanical cycles.

Suitable for

• Overcurrent protection in distribution boards
• Lighting circuits and resistive loads
• Commercial and industrial electrical panels
• Residential electrical installations

Key specifications

• Product Type: Miniature Circuit Breaker (MCB)
• Number of Poles: 3-Pole (3P)
• Rated Current: 20 A
• Tripping Characteristic: B-Curve
• Rated Breaking Capacity (Icn): 6 kA
• Rated Voltage (AC): 230/400 V AC
• Rated Frequency: 50/60 Hz
• Mounting Type: DIN Rail (EN 60715)
• Terminal Capacity (Solid/Stranded): 1-25 mm²
• Electrical Endurance: 10,000 cycles
• Mechanical Endurance: 20,000 cycles
• Protection Degree (Terminals): IP20
• Protection Degree (Front Panel): IP40
• Standard: EN 60898-1
• Energy Limiting Class: 3
• Operating Temperature Range: -35 to +70 °C
• Pollution Degree: 2
• Series: Ex9BN

Recommendations

For optimal performance, ensure proper installation by a qualified electrician. This MCB is compatible with standard DIN rail enclosures and should be used with appropriate upstream protection. Always verify system voltage and current requirements before installation.