The Schneider Electric EZ9R62263 is a 2-pole residual current circuit breaker (RCCB) from the Easy9 range, rated 63 A with 300 mA earth-leakage sensitivity, Type AC (trips on sinusoidal AC fault currents).
This part is officially obsolete per the manufacturer. No successor order code is listed in the available records.
Rated operational voltage is 230 V AC at 50 Hz, with a breaking and making capacity of 630 A at 230 V per IEC 61008-1. The conditional short-circuit current is 6000 A — meaning the device can withstand a fault up to 6 kA if backed by an upstream overcurrent protective device sized per the standard. Rated impulse withstand voltage is 4 kV, which covers typical transient overvoltages in residential distribution. The tunnel-type terminals accept 1–35 mm² rigid or 1–25 mm² flexible cable, torqued to 3.5 N·m. IP20 on the body, IP40 when enclosed in a modular enclosure — standard for indoor panel installation. The part is tropicalised per IEC 60068-2-30 (damp heat cyclic), which matters for high-humidity environments.
Mounts on DIN rail via clip-on mechanism. Occupies 4 modules of 9 mm pitch (36 mm width). Neutral is on the left. The toggle control provides a contact-position indicator. Tightening torque of 3.5 N·m on the tunnel terminals — use a torque screwdriver to avoid terminal damage.