Circuit breaker noark Ex9BN 1P C6 — miniature 1-pole, C curve, 6 A

Miniature circuit breaker noark Ex9BN 1P C6 is a single-pole protective device with a C-type tripping characteristic and a rated current of 6 A. Intended for overcurrent and short-circuit protection in residential and light commercial installations, this 1P breaker fits standard 35 mm DIN-rail mounting and provides thermal-magnetic protection for branch circuits, lighting circuits and small motor loads. The compact design and defined C curve make it suitable for circuits where moderate inrush currents occur while still offering reliable disconnection under fault conditions.

Advantages

The Ex9BN 1P C6 combines a compact footprint with a thermal-magnetic mechanism that ensures stable long-term overcurrent protection and fast response to short circuits. The C-type characteristic balances sensitivity to overloads and tolerance of startup currents from motors or transformers. Designed for standard electrical panels, it enables straightforward installation and replacement, and its single-pole configuration simplifies protection of phase conductors in single-phase supplies.

Suitable for

• Protection of lighting circuits in homes and apartments
• Overcurrent protection for socket outlets and small appliances
• Branch circuit protection in small commercial or office installations
• Circuits with moderate inrush currents (small motors, transformers)

Key specifications

• Poles: 1 (single-pole)
• Tripping curve: C-type (thermal-magnetic)
• Rated current: 6 A
• Function: overcurrent and short-circuit protection
• Mounting: 35 mm DIN-rail compatible
• Application: residential and light commercial branch circuits
• Typical loads: lighting, outlet circuits, small motors/transformers

How to use

Install the breaker on a standard 35 mm DIN-rail inside the distribution board. Connect the phase conductor to the input terminal and the load conductor to the output terminal, respecting the manufacturer's torque specifications for terminal connections. Use the front-mounted toggle to switch the circuit on and off and to manually reset the device after a trip. Verify proper coordination with upstream and downstream protection devices and ensure the breaker rating (6 A, C curve) matches the circuit design and load requirements.

Usage recommendations

Choose this 6 A C-curve breaker for branch circuits where moderate inrush currents occur and reliable short-circuit interruption is required. Verify compatibility with the panel and conduct periodic inspection for secure terminal connections and absence of visible damage. For circuits with higher continuous current or different inrush characteristics, select a breaker with an appropriate rated current or tripping curve.