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Schneider Electric EZ9F34240 — 2-Pole MCB (DIN Rail)

Schneider Electric EZ9F34240 Easy9 MCB, 40 A, 2P, C-Curve, 4

MPNEZ9F34240
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Schneider Electric Easy9 series, EZ9F34240 miniature circuit breaker, 2-pole, 40 A, C-curve, 4.5 kA breaking capacity at 230/400 V AC, DIN-rail mount, grey (RAL 7035).

Schneider Electric EZ9F34240 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

EZ9F34240 — Identification
ParameterValue
Series / familyEasy9
Device short nameEasy9 MCB
Product / component typeMiniature circuit-breaker
Device applicationDistribution
EZ9F34240 — Electrical
ParameterValue
Rated current [In]40 A
Number of protected poles2
Rated operational voltage [Ue]400 V AC 50/60 Hz
Network type (AC/DC)AC
Network frequency50/60 Hz
EZ9F34240 — Protection
ParameterValue
Tripping curve codeC
Magnetic tripping limit5...10 x In
Breaking capacity (Icu)4500 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 230 V AC 50/60 Hz conforming to IEC 60898-1
Suitable for isolationYes conforming to IEC 60898-1
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Operating / control typeToggle
Mechanical durability (cycles)10000 cycles
EZ9F34240 — Mechanical
ParameterValue
9 mm pitches4
Width36 mm
Height81 mm
Depth66.5 mm
Mounting supportDIN rail
Mounting modeClip-on
Terminal connectionsTunnel type terminal (top or bottom) 1...25 mm² flexible Tunnel type terminal (top or bottom) 1...35 mm² rigid
Terminal tightening torque3.5 N.m top or bottom
Local signalling / indicationWithout
Contact position indicatorYes
EZ9F34240 — Environmental
ParameterValue
Operating temperature range-25...60 °C
Storage temperature range-40...85 °C
Relative humidity95 % at -25...60 °C
EZ9F34240 — Approvals
ParameterValue
Standards / complianceIEC 60898-1

Product details

The Schneider Electric EZ9F34240 is a 2-pole (2P) Easy9 miniature circuit breaker rated at 40 A with a C-curve trip characteristic (magnetic trip limit 5–10 × In). It breaks 4.5 kA (Icn) at both 230 V and 400 V AC, 50/60 Hz, per IEC 60898-1 — the same value serves as the service breaking capacity (Ics = 100% Icn), so it can reclose after a fault at its full rating without derating the downstream circuit.

The 36 mm width (4 x 9 mm pitches) and 81 x 66.5 mm (H x D) footprint leave room for adjacent breakers in a multi-pole distribution board. IP20 finger-safe terminals — fine for enclosed panels; not rated for washdown environments.

The 40 A rating and C-curve suit general-purpose distribution and moderate motor-starting loads (pumps, fans, small conveyors) where inrush current peaks at 5–10 × In. Thermal-magnetic trip combines a bimetal element for overload protection and a solenoid for short-circuit — no electronics to fail.

Frequently asked questions

What is the breaking capacity of EZ9F34240?

The EZ9F34240 has a rated breaking capacity (Icn) of 4.5 kA at both 230 V AC and 400 V AC, 50/60 Hz, per IEC 60898-1. The service breaking capacity (Ics) is also 4.5 kA (100% of Icn), so it can be reclosed after clearing a fault at its full rating.

What terminals does EZ9F34240 accept?

Tunnel-type terminals top and bottom accept 1–35 mm² rigid or 1–25 mm² flexible copper cable. Tightening torque is 3.5 N.m.

Where can I buy EZ9F34240 and get current pricing?

The EZ9F34240 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 commercial offer.

MPN
EZ9F34240