Circuit Breaker NOARK Ex9BP 4P C63 | DC 1000 V | 10 kA | IP20

NOARK Ex9BP 4P C63 (art. #111576)is a highly reliable four-pole DC circuit breaker designed to protect high voltage DC circuits up to1000 V DC. Thanks toits non-polarized construction, the device is extremely suitable for photovoltaic installations, string protection, DC switchboards and industrial DC applications.

The seriesEx9BPoffers high breaking capacity10 kA, compact dimensions and the possibility of adding accessories, which makes it a reliable and flexible solution for modern PV systems and energy installations.

Construction and installation

Mounting: DIN rail 35 mm
Width: 18mm per pole (72mm total)
Height: 83 mm (89 mm with DIN clip)
Depth (frame): 45 mm
Degree of protection: IP40 housing / IP20 terminals
Type of terminals: Combined (lift + open mouthed)
Wire section: 1 – 35 mm²
Tightening torque: 3.5 Nm
Operating temperature: –35°C to +70°C
Relative humidity: ≤95 %
Maximum altitude: ≤2000 m
Weight: ~0.48 kg (4 poles)

Protection and reliability

Short circuit protection
Overload protection
Non-polarized DC design – safe in PV applications
High current limiting capability
Mechanical life:20,000 cycles
Electrical life:2,500 cycles
Possibility of additional accessories:
– auxiliary and signal contacts (AX, AL, AXL)
– shunt release (SHT)
– undervoltage release (UVT)

Standards and certificates

 IEC / EN 60947-2
 CE
Suitable for Photovoltaic (PV) applications

Summary

Poles: 4P
Rated current: 63 A
Curve: C
Rated DC voltage: up to 1000 V
Breaking capacity: 10 kA
Mounting: DIN rail
Degree of protection: IP20 (terminals)

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: DC Miniature Circuit Breaker (MCB)
✅ Number of poles: 4
✅ Nominal current (In): 63 A
✅ Actuation curve: C (5–10 × In)
✅ Nominal operating voltage DC:up to 1000 V DC(4P configuration)
(150 V DC per pole, according to IEC/EN 60947-2)
✅ Interrupting capacity (Icu):10 kA
✅ Insulation voltage (Ui):1000 V DC
✅ Impulse voltage (Uimp):4 kV
✅ Rated frequency: DC application
✅ Selectivity class: 3
✅ Category of use: A

Additional information