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Schneider Electric C1644B160 — Residual Current Breakers (RCCB/RCBO)

C1644B160 ComPacT NSX MicroLogic 4.2 AB Trip Unit, 160 A

MPNC1644B160
Active

Schneider Electric ComPacT NSX160...250, MicroLogic 4.2 AB electronic trip unit, 160 A at 40 °C, 4P, LSoIR protection, integrated earth-leakage Class A, EN/IEC 60947-2.

Schneider Electric C1644B160 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C1644B160 — 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 Color indicator (yellow) for residual current
C1644B160 — Electrical Ratings
ParameterValue
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
C1644B160 — Identification
ParameterValue
Product / component typeTrip unit
Product range / familyComPacT
C1644B160 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60947-1
C1644B160 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C1644B160: The 160 A trip unit rating at 40 °C sets the continuous current limit for the breaker assembly; above that ambient, thermal derating applies per the IEC 60947-2 coordination curves. The 4P pole configuration with neutral left position and selectable neutral protection (0.5×Ir, 1×Ir, or none) means this unit handles three-phase + neutral systems where the neutral may carry unbalanced load. The electronic trip provides adjustable short-time pickup (Isd) from 1.5 to 10×Ir and a fixed instantaneous pickup at 1600 A, giving you selectivity headroom downstream. The integrated earth-leakage protection (Class A, adjustable IΔn and Δt) covers ground-fault detection without a separate module — useful where panel space is tight.

Deployment context

This trip unit mounts into the ComPacT NSX160 or NSX250 molded-case breaker — fixed-mount only.

Frequently asked questions

What is the C1644B160's listed range and standards?

It belongs to the ComPacT NSX160...250 range and complies with EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear.

How do I get current pricing and availability for C1644B160?

The C1644B160 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for the latest position.

What protection functions does the MicroLogic 4.2 AB provide?

It provides L (long-time overload), So (short-time short-circuit with fixed delay), I (instantaneous short-circuit), and R (earth-leakage) protection — abbreviated LSoIR. The earth-leakage is Class A with adjustable sensitivity and time delay.

MPN
C1644B160