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Schneider Electric EZ9F53363 — Circuit Breaker Accessories

Schneider Electric EZ9F53363 Easy9 MCB, 63 A, 3P, C-Curve, 3

MPNEZ9F53363
Obsolete

Schneider Electric Easy9 series, EZ9F53363 miniature circuit breaker, 3P, 63 A, C-curve, 3 kA Icu at 400 V AC, thermal-magnetic trip, DIN rail mount.

$11.56Ref. price · indicative, final on quote
Schneider Electric EZ9F53363 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

EZ9F53363 — Identification
ParameterValue
Product / component typeMiniature circuit-breaker
Product rangeEasy9
Device applicationDistribution
EZ9F53363 — 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 SANS 60947-2
Rated impulse withstand voltage [Uimp]4 kV conforming to SANS 60947-2
Network frequency50/60 Hz
Magnetic tripping limit8.5 x In +/- 20 %
EZ9F53363 — Protection & Performance
ParameterValue
Breaking capacity3 kA Icu at 400 V AC 50/60 Hz conforming to SANS 60947-2
Rated service breaking capacity [Ics]3 kA 100 % x Icu at 400 V AC 50/60 Hz conforming to SANS 60947-2
Trip unit technologyThermal-magnetic
Suitability for isolationYes conforming to SANS 60947-2
Utilisation categoryCategory A
Mechanical durability10000 cycles
Electrical durability4000 cycles
Local signallingWithout
Contact position indicatorYes
EZ9F53363 — Mechanical
ParameterValue
Connections / terminalsTunnel type terminal (top or bottom) 1...35 mm² rigid Tunnel type terminal (top or bottom) 1...35 mm² flexible
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)
EZ9F53363 — Environmental
ParameterValue
IP degree of protectionIP20 conforming to IEC 60529
Pollution degree2
Operating ambient air temperature-5...60 °C
Storage ambient air temperature-40...85 °C
EZ9F53363 — Approvals
ParameterValue
StandardsSANS 60947-2
EZ9F53363 — Specifications
ParameterValue
Curve codeC
Number of protected poles3

Product details

The EZ9F53363 is a 63 A, 3-pole miniature circuit breaker from Schneider Electric's Easy9 range, built for distribution boards in residential and light commercial installations. The C-curve (magnetic trip at 8.5 x In ±20%) means it handles moderate inrush from motor-starting or transformer loads without nuisance tripping, while still clearing short-circuit faults fast. Clip-on mounting to DIN rail (35 mm) and tunnel terminals accepting 1–35 mm² rigid or flexible cable make it a straightforward swap into existing distribution boards. The IP20 finger-safe terminals meet the basic touch-protection requirement for enclosed panels.

Coordination and selectivity note

Rated as limitation class 3 per SANS 60947-2, meaning it limits let-through energy enough to allow selective coordination with downstream MCBs in a typical distribution board. The 100% Ics rating (same 3 kA as Icu) means it can be re-closed after clearing a fault at its full rated breaking capacity — no derating for service break duty.

Frequently asked questions

What is the breaking capacity of the EZ9F53363?

The EZ9F53363 has a breaking capacity of 3 kA Icu at 400 V AC 50/60 Hz, conforming to SANS 60947-2. The service breaking capacity Ics is also 3 kA (100% of Icu).

What standards does the EZ9F53363 comply with?

The EZ9F53363 is certified to SANS 60947-2, with a limitation class of 3 and suitability for isolation per that standard. It also carries an IP20 rating per IEC 60529.

MPN
EZ9F53363