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Schneider Electric EZ9F34363 — Circuit Breaker Accessories

Schneider Electric EZ9F34363 Easy9 MCB, 63 A, 3P, C-Curve, 4

MPNEZ9F34363
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Schneider Electric Easy9 series, EZ9F34363 miniature circuit breaker, 3P, 63 A, C-curve, 4.5 kA Icn at 400 V AC, thermal-magnetic trip, clip-on DIN rail mount.

Schneider Electric EZ9F34363 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

EZ9F34363 — Identification
ParameterValue
Product / component typeMiniature circuit-breaker
Product rangeEasy9
Device applicationDistribution
EZ9F34363 — Electrical
ParameterValue
Network type (AC/DC)AC
Rated current [In]63 A
Rated operational voltage [Ue]400 V AC 50/60 Hz
Rated insulation voltage [Ui]500 V AC 50/60 Hz conforming to IEC 60898-1
Rated impulse withstand voltage [Uimp]4 kV conforming to IEC 60898-1
Network frequency50/60 Hz
Magnetic tripping limit5...10 x In
EZ9F34363 — Protection & Performance
ParameterValue
Breaking capacity4500 A Icn at 230 V AC 50/60 Hz conforming to IEC 60898-1 4500 A Icn at 400 V AC 50/60 Hz conforming to IEC 60898-1
Rated service breaking capacity [Ics]4.5 kA 100 % x Icn at 400 V AC 50/60 Hz conforming to IEC 60898-1
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to IEC 60898-1
Mechanical durability10000 cycles
Electrical durability4000 cycles
Local signallingWithout
Contact position indicatorYes
EZ9F34363 — Mechanical
ParameterValue
Connections / terminalsTunnel type terminal (top or bottom) 1...25 mm² flexible Tunnel type terminal (top or bottom) 1...35 mm² rigid
Device short nameEasy9 MCB
Control typeToggle
Mounting modeClip-on
Mounting supportDIN rail
Usable 9 mm pitches6
Width54 mm
Height81 mm
Depth66.5 mm
ColourGrey (RAL 7035)
EZ9F34363 — Environmental
ParameterValue
IP degree of protectionIP20 conforming to IEC 60529
Pollution degree2
Operating ambient air temperature-25...60 °C
Storage ambient air temperature-40...85 °C
EZ9F34363 — Approvals
ParameterValue
StandardsIEC 60898-1
EZ9F34363 — Specifications
ParameterValue
Curve codeC
Number of protected poles3

Product details

Panel integration and ratings

The Schneider Electric EZ9F34363 is a 3-pole C-curve miniature circuit breaker from the Easy9 range, rated 63 A with a breaking capacity of 4.5 kA Icn at 400 V AC (IEC 60898-1).

Designed to IEC 60898-1 for overcurrent protection in residential and commercial distribution. Service breaking capacity (Ics) equals 100% of Icn at 400 V AC — 4.5 kA — meaning the breaker can be reclosed after a fault at that level without derating. IP20 finger-safe terminals. Pollution degree 2, suitable for normal factory or building environments.

Frequently asked questions

Where can I buy EZ9F34363 and what is the lead time?

This part is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels.

What is the breaking capacity of EZ9F34363 at 400 V?

The breaking capacity (Icn) is 4.5 kA at 400 V AC 50/60 Hz per IEC 60898-1, with an Ics (service breaking capacity) of 4.5 kA (100% of Icn).

What terminals does EZ9F34363 accept?

Tunnel-type terminals accept 1–25 mm² flexible or 1–35 mm² rigid cable, with a tightening torque of 3.5 N.m.

MPN
EZ9F34363