AUTOMATIC SWITCH Noark EX9BN 3P DC415V 50A, Curve: C50. 6kA. IP20 Rated voltage 415V

NOARK Ex9BN 3P C50 (art. #100148)is a three-pole circuit breaker designed to protect electrical circuits from overloads and short circuits in AC and DC applications. Thanks tocurve C, the device is suitable for consumers with moderate inrush currents such as electric motors, photovoltaic installations, inverters and industrial equipment.

The seriesEx9BNoffers compact dimensions, high reliability and the possibility of expansion with additional modules, which makes it an excellent solution for modern electrical panels.

Manufacturer: NOARK Electric
Series: Ex9BN
Item number: 100148
Device Type:Miniature Circuit Breaker (MCB)
Poles: 3P
Exclusion curve: C
Rated current: 50 A

Suitable for AC and DC applications
For residential, commercial and industrial electrical installations
Reliable protection against overload and short circuit

Construction and installation

Mounting: DIN rail 35 mm
Width: 18 mm per pole
Height: 83 mm (89 mm with DIN clip)
Degree of protection: IP20
Terminal type: Combined (lift + open type)
Wire section: 1 – 35 mm²
Tightening torque: 2 – 3.5 Nm
Operating temperature: –30°C to +70°C
Relative humidity: ≤95 %
Maximum altitude: ≤2000 m
Weight: ~0.36 kg

Protection and reliability

Short circuit protection
Overload protection
High current limiting capability
Mechanical life: up to 20,000 cycles
Electrical life: up to 10,000 cycles
Compatible with Ex9 series accessories:
– auxiliary and signaling contacts
– shunt and undervoltage releases
– RCD add-on units Ex9LE

Standards and certificates

 IEC / EN 60898-1
IEC / EN 60947-2 (partial)
 CE

Summary

Poles: 3P
Rated current: 50 A
Curve: C
Rated voltage: 415 V
Breaking capacity: 6 kA
Mounting: DIN rail
Degree of protection: IP20

We inform you that, despite our efforts, we cannot guarantee that the published information and photos do not contain inaccuracies or errors that cannot be a legal basis for claims.

Technical characteristics

✅ Type: Miniature Circuit Breaker (MCB)
✅ Number of poles: 3
✅ Nominal current (In): 50 A
✅ Actuation curve: C (5–10 × In)
✅ Nominal operating voltage AC: 240 / 415 V
✅ Nominal operating voltage DC: up to 48 V DC per pole (3P)
✅ Interrupting capacity (Icn):
– 6 kA according to IEC/EN 60898-1
– up to 10 kA according to IEC/EN 60947-2
✅ Insulation voltage (Ui): 690 V AC
✅ Impulse voltage (Uimp): 6 kV
✅ Nominal frequency: 50 / 60 Hz
✅ Selectivity class: 3
✅ Category of use: A

Additional information