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Schneider Electric C160N450FM — Miniature Circuit Breakers (MCB)

Schneider Electric C160N450FM ComPacT NS 1600A, 50kA 415V AC

MPNC160N450FM
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Schneider Electric ComPacT NS new generation, C160N450FM, 4P fixed circuit breaker, 1600 A, MicroLogic 5.0 electronic trip unit, 50 kA Icu at 415 V AC, manually operated, front-connected.

$6,119.68Ref. price · indicative, final on quote
Schneider Electric C160N450FM datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

C160N450FM — Identification
ParameterValue
Product nameComPacT NS new generation
Product rangeComPacT
Product range (series)ComPacT NS630b...1600 new generation
Product/component typeCircuit breaker
Device applicationDistribution
C160N450FM — Ratings
ParameterValue
Rated current (In)1600 A at 50 °C
Breaking capacity85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)37 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 37 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 37 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 30 kA at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 22 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated operational voltage (Ue)690 V AC 50/60 Hz
Rated insulation voltage (Ui)800 V AC 50/60 Hz conforming to IEC 60947-2
Rated impulse withstand voltage (Uimp)8 kV conforming to IEC 60947-2
Network type (AC/DC)AC
Network frequency50/60 Hz
Utilisation categoryCategory B
Overvoltage categoryIII
C160N450FM — Protection
ParameterValue
Trip unit technologyElectronic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)1000 cycles at 690 V In 2000 cycles at 690 V In/2 2000 cycles at 440 V In 5000 cycles at 440 V In/2
Mechanical durability (cycles)10000 cycles
C160N450FM — Mechanical
ParameterValue
Mounting supportBackplate
Mounting modeFixed
Control typeManually operated
Local signalling/indication4 LEDs (red) for fault indication 1 LED (yellow) for overload
C160N450FM — 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 60947
Relative humidity0...95 %
C160N450FM — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C160N450FM — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.4...1 x In
Trip unit protection functionsLSI

Product details

The C160N450FM is a fixed-mount, 4-pole ComPacT NS new generation circuit breaker rated 1600 A at 50 °C, built for AC distribution in switchboards and panelboards that require compliance with EN/IEC 60947-2. The 1600 A continuous rating governs the busbar and cable sizing upstream — this breaker does not derate at 50 °C, so the full 1600 A is available at that ambient. The MicroLogic 5.0 electronic trip unit provides LSI protection: long-time overload (L), short-time short-circuit (S) with adjustable time delay for selectivity, and instantaneous (I) for fault clearing. Utilisation category B means the breaker is suitable for distribution with no special current-limiting requirements upstream.

Mounts fixed to a backplate (mounting support: backplate). Front-connected on both upside and downside — all cable or busbar terminations are accessible from the front, which simplifies panel layout and gland-plate planning. Connection pitch is 70 mm, matching standard busbar spacing for 1600 A class breakers. Dimensions: 327 mm high, 280 mm wide, 147 mm deep — verify enclosure depth and door clearance before committing the cutout. IK07 impact protection (EN 50102) covers incidental mechanical shock during installation.

Selectivity and protection coordination

The MicroLogic 5.0 trip unit's LSI curves allow full selectivity with downstream breakers. The S (short-time) protection has adjustable time delay and I²t on/off — critical for cascading coordination in a distribution tree. Thermal memory of 20 minutes means the trip unit remembers the thermal state of the breaker after a trip, preventing immediate reclose on a hot conductor. Electrical durability: 1000 cycles at 690 V In, 2000 cycles at 690 V In/2, 2000 cycles at 440 V In, 5000 cycles at 440 V In/2. Mechanical durability: 10 000 cycles. Power losses are 74 W at rated current — factor this into enclosure ventilation calculations. No earth-leakage protection built in (without); if ground-fault protection is needed, specify a separate module or a MicroLogic 6.0/7.0 trip unit instead.

Frequently asked questions

Where can I buy C160N450FM and how do I get a price?

The C160N450FM is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is C160N450FM's breaking capacity at 415 V AC?

The C160N450FM has a breaking capacity of 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2, and 50 kA Icu at 440 V AC. At 220/240 V AC it is rated 85 kA Icu.

What protection curves does the MicroLogic 5.0 trip unit provide?

The MicroLogic 5.0 provides LSI protection: L for overload (long time), S for short-time short-circuit with adjustable delay, and I for instantaneous short-circuit. It is an electronic trip unit.

What compliance documentation does this brand provide for C160N450FM?

The C160N450FM is designed and tested to EN/IEC 60947-2. The manufacturer provides a declaration of conformity and test certificates upon request through the RFQ process. Specific RoHS/REACH documentation is available from the manufacturer's compliance portal.

MPN
C160N450FM