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Schneider Electric EZC400N44400N — Circuit Breaker Accessories

EZC400N44400N Schneider EasyPact EZC400N 400A 4P MCCB, 36kA

MPNEZC400N44400N
Obsolete

Schneider Electric EasyPact EZC400N series, EZC400N44400N, 4-pole molded-case circuit breaker, 400 A thermal-magnetic TM-D trip unit, 36 kA Icu at 440 V AC, fixed mount, IP20.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

EZC400N44400N — Identification
ParameterValue
Product / component typeCircuit breaker
Range of productEasyPact
Device applicationDistribution
EZC400N44400N — 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]6 kV conforming to IEC 60947-2
Network frequency50/60 Hz
Poles description4P
EZC400N44400N — 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 rating400 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
EZC400N44400N — Mechanical
ParameterValue
Connection pitch45 mm
Downside connectionFront
Upside connectionFront
Device short nameEasypact EZC400N
Control typeToggle
Mounting modeFixed
Mounting supportBackplate
Width140 mm
Height255 mm
Depth140 mm
ColourBlack
EZC400N44400N — 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
EZC400N44400N — Approvals
ParameterValue
StandardsEN/IEC 60947-1 GB/T 14048.2 EN/IEC 60947-2 JIS C8201-2-2

Product details

The 36 kA Icu at 440 V AC (IEC 60947-2) is the N-frame breaking capacity — enough for most distribution panels downstream of a transformer, but not for high-fault industrial mains. At 220/230 V it handles 40 kA Icu, so it's comfortable on 208Y/120 V or 240 V services too. The TM-D trip is a fixed thermal-magnetic curve — no interchangeable trip blocks, no electronic adjustment. The magnetic pickup is fixed at 4000 A (10× In), so it's a standard distribution curve, not a motor-protection or selective-coordination curve. For distribution feeders and general branch protection, that's fine. For motor circuits you'd want a Mag-Gard or electronic trip.

Where it goes — panel and deployment context

Fixed-mount, backplate-mounted breaker with front-front connections — line and load both terminate on the front face. The 45 mm pole pitch matches standard EasyPact busbar and accessory spacing. IK07 impact resistance handles incidental tool drops during maintenance. The toggle control and positive contact indication give a clear visual of breaker state — no ambiguity on whether it's tripped or off.

Standards and compliance — what the approvals mean

Listed to IEC 60947-2, EN 60947-2, GB/T 14048.2, and JIS C8201-2-2. The IEC 60947-2 standard covers low-voltage switchgear and controlgear for circuit breakers — it's the global benchmark for MCCB performance, thermal and magnetic calibration, and breaking capacity verification. The GB/T and JIS variants mean it's accepted in Chinese and Japanese markets without additional testing. No earth-leakage protection built in; if you need RCD functionality, you add a Vigicompact module or an external RCCB.

Frequently asked questions

What is the breaking capacity of this breaker at 440 V?

36 kA Icu at 440 V AC 50/60 Hz per IEC 60947-2. At 380 V it's also 36 kA; at 220/230 V it rises to 40 kA Icu.

What compliance documentation does this breaker carry?

Listed to IEC 60947-2, EN 60947-2, GB/T 14048.2, and JIS C8201-2-2. Suitable for isolation per IEC 60947-2. Pollution degree 3, IK07 impact, IP20 finger-safe.

MPN
EZC400N44400N