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Schneider Electric C25B44V160 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric C25B44V160 ComPacT NSX 160A MCCB, 25kA 41

MPNC25B44V160
Active

Schneider Electric, ComPacT NSX, MCCB, C25B44V160, 160 A, 4P, 25 kA Icu at 415 V AC, MicroLogic 4.2 electronic trip unit with integrated earth-leakage protection.

$1,302.87 – $2,756.16Ref. price · indicative, final on quote
Schneider Electric C25B44V160 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25B44V160 — Residual Current Protection
ParameterValue
Earth-leakage protection class / typeClass A
Trip unit technologyElectronic
Local signalling / indicationFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
C25B44V160 — Electrical Ratings
ParameterValue
Rated current (In)160 A at 40 °C
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)500 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Overvoltage categoryIV
Electrical durability20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In
Mechanical durability (operating cycles)20000 cycles
C25B44V160 — Identification
ParameterValue
Product nameComPacT NSX
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSX250B
C25B44V160 — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
C25B44V160 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-50...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
Operating altitude0...2000 m without derating 2000 m...5000 m with derating
C25B44V160 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C25B44V160 is a 160 A, 4-pole (4P) ComPacT NSX moulded-case circuit breaker from Schneider Electric. The 160 A trip unit rating at 40 °C sets the continuous current limit for a distribution feeder — size the upstream conductor and downstream load for that ampacity. The 'R' function is integrated, so this breaker handles both overcurrent and ground-fault protection in one device — no separate Vigi module needed. Breaking capacity: 40 kA Icu at 240 V AC, 25 kA Icu at 415 V AC, 20 kA at 440 V, and 15 kA at 500 V.

Deployment context

Mounts on a backplate in any orientation — horizontal, vertical, or flat. The 140 mm width, 161 mm height, and 86 mm depth fit standard distribution panel cutouts. IP40 enclosure protection means it's suited for indoor, clean-environment panels; the IK07 impact rating withstands incidental tool contact during installation.

Covers breaking capacity ratings, utilisation category A, and overvoltage category IV.

Frequently asked questions

What is C25B44V160's rated breaking capacity at 415 V?

25 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. The breaking capacity code 'B' in the short name NSX250B corresponds to this 25 kA level at 415 V.

What protection functions does the MicroLogic 4.2 trip unit provide?

The MicroLogic 4.2 covers L (long-time overload), So (short-time short-circuit with fixed delay), I (instantaneous short-circuit), and R (integrated earth-leakage protection). The R function eliminates the need for a separate Vigi add-on block.

What is C25B44V160's physical size?

Width 140 mm, height 161 mm, depth 86 mm. Mounts on a backplate in horizontal or vertical orientation.

MPN
C25B44V160