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Schneider Electric EZC400N44350 — Circuit Breaker Accessories

Schneider Electric EZC400N44350 EasyPact EZC400N, 400 A, 4P,

MPNEZC400N44350
Obsolete

Schneider Electric EasyPact EZC400N, molded case circuit breaker, 400 A, 4 poles, 36 kA Icu at 440 V AC, thermal-magnetic TM-D trip unit, fixed mount, IP20.

Schneider Electric EZC400N44350 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

EZC400N44350 — Identification
ParameterValue
Product / component typeCircuit breaker
Range of productEasyPact
Device applicationDistribution
EZC400N44350 — Electrical
ParameterValue
Network type (AC/DC)AC
Rated current [In]400 A at 40 °C
Rated operational voltage [Ue]440 V AC 50/60 Hz conforming to IEC 60947-2
Rated insulation voltage [Ui]690 V AC 50/60 Hz conforming to IEC 60947-2
Rated impulse withstand voltage [Uimp]8 kV conforming to IEC 60947-2
Network frequency50/60 Hz
Poles description4P
EZC400N44350 — Protection & Performance
ParameterValue
Breaking capacity36 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 220/230 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 380 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 400/415 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity [Ics]18 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 20 kA at 220/230 V AC 50/60 Hz conforming to IEC 60947-2 18 kA at 380 V AC 50/60 Hz conforming to IEC 60947-2 18 kA at 400/415 V AC 50/60 Hz conforming to IEC 60947-2
Breaking capacity codeN
Trip unit technologyThermal-magnetic
Trip unit rating350 A at 50 °C
Trip unit nameTM-D
Protection typeOverload protection Short-circuit protection
Earth-leakage protectionWithout
Suitability for isolationYes conforming to IEC 60947-2
Utilisation categoryCategory A
Mechanical durability10000 cycles
Electrical durabilityCategory A: 4000 cycles 415 V AC 50/60 Hz conforming to IEC 60947-2
Local signallingPositive contact indication
Contact position indicatorYes
EZC400N44350 — Mechanical
ParameterValue
Connection pitch44 mm
Downside connectionFront
Upside connectionFront
Device short nameEasypact EZC400N
Control typeToggle
Mounting modeFixed
Mounting supportBackplate
Width185 mm
Height255 mm
Depth140 mm
ColourBlack
EZC400N44350 — Environmental
ParameterValue
IP degree of protectionIP20 conforming to IEC 60529
IK degree of protectionIK07 conforming to EN 50102
Pollution degree3 conforming to IEC 60947
Operating ambient air temperature-25...70 °C
Storage ambient air temperature-35...85 °C
EZC400N44350 — Approvals
ParameterValue
StandardsEN/IEC 60947-1 JIS C8201-2-2 GB/T 14048.2 EN/IEC 60947-2

Product details

The Schneider Electric EZC400N44350 is a 4-pole molded case circuit breaker from the EasyPact EZC400N series, rated 400 A at 40 °C and carrying a 36 kA Icu breaking capacity at 440 V AC (50/60 Hz) per IEC 60947-2. The TM-D thermal-magnetic trip unit provides overload and short-circuit protection, with a fixed magnetic trip threshold of 4000 A (10x In). It is marked suitable for isolation per IEC 60947-2, meaning it can serve as a visible disconnect when locked in the OFF position.

Fixed-mount via backplate, with front-connect terminals on both line and load sides. Connection pitch is 44 mm. The breaker occupies a 185 mm width × 255 mm height × 140 mm depth footprint. IP20 finger-safe protection on the front face; the enclosure or panel must provide additional protection around the rear terminals.

Frequently asked questions

Where can I buy EZC400N44350 and how do I get a price?

This part 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 the breaking capacity of EZC400N44350 at 440 V?

36 kA Icu at 440 V AC 50/60 Hz per IEC 60947-2. At 220/230 V it is 40 kA Icu; at 380 V and 400/415 V it is also 36 kA Icu.

What is the trip unit type and rating on EZC400N44350?

The TM-D thermal-magnetic trip unit is rated 350 A at 50 °C, with a fixed magnetic trip threshold of 4000 A. The breaker's continuous current rating is 400 A at 40 °C ambient.

MPN
EZC400N44350