NOARK Ex9BN 1P B16 Miniature Circuit Breaker, 16 A, 6 kA, B Curve, 1-Pole, DIN Rail

The NOARK Ex9BN 1P B16 stands apart from typical miniature circuit breakers by combining a compact single-pole design with robust 6 kA breaking capacity and precise B-curve tripping. Engineered for residential and commercial distribution boards, it delivers dependable overload and short-circuit protection for lighting and socket circuits where moderate inrush currents are expected.

Highlights

• Rated current 16 A, tripping curve B for standard loads
• Short-circuit breaking capacity Icn = 6 kA per IEC/EN 60898-1
• Single-pole (1P) module, 18 mm width, DIN rail mount
• Screw terminals accept solid or stranded conductors up to 25 mm²
• Energy limiting class 3 for enhanced safety
• Wide operating temperature range from -35 °C to +70 °C
• Mechanical endurance 20,000 cycles, electrical endurance 10,000 cycles

In daily use

Installation is straightforward on a standard 35 mm DIN rail, with clear terminal markings and a 2.5 Nm tightening torque ensuring secure connections. The toggle provides a clear visual indication of ON/OFF status, and the IP20 terminal protection (IP40 with enclosure cover) suits typical distribution board environments. The B-curve characteristic allows the breaker to handle normal switching surges without nuisance tripping, while still reacting quickly to genuine overloads and short circuits.

Full specifications

• Brand: NOARK
• Model: Ex9BN 1P B16
• MPN: 100008
• EAN: 8592765000095
• Number of poles: 1P
• Rated current: 16 A
• Tripping curve: B
• Rated short-circuit breaking capacity (Icn): 6 kA
• Rated voltage (Ue): 230 V AC
• Rated frequency: 50/60 Hz
• Standard: IEC/EN 60898-1
• Energy limiting class: 3
• Mounting type: DIN rail (35 mm)
• Terminal capacity (solid/stranded): 1–25 mm²
• Tightening torque: 2.5 Nm
• Degree of protection (terminals): IP20
• Degree of protection (enclosure): IP40 (with cover)
• Mechanical endurance: 20,000 cycles
• Electrical endurance: 10,000 cycles
• Operating temperature range: -35 °C to +70 °C
• Connection type: Screw terminal

Final note

For reliable circuit protection in a space-saving form factor, the NOARK Ex9BN 1P B16 offers a balanced combination of performance, compliance, and durability—an excellent choice for modern electrical installations.