The Schneider Electric A9C52240 is an integrated control circuit breaker from the Acti9 Reflex iC60N line — a single device that combines remote-controlled switching and overcurrent protection in a 2-pole, 40 A, curve C package. It's built for distribution panels where you need to both protect a circuit and remotely open/close it without adding a separate contactor. The thermal-magnetic trip unit provides overload and short-circuit protection, while the integrated control coil lets you switch the load remotely via a maintained or impulse signal at 230 V AC, 24 V AC, 48 V AC, 24 V DC, or 48 V DC. Breaking capacity is 20 kA Icu at 220–240 V AC and 10 kA Icu at 380–415 V AC, per EN/IEC 60947-2 — enough for most commercial and light industrial panelboards. The N breaking capacity code means it's the standard-duty variant in the Reflex iC60 family.
At 81 mm wide (9 x 9 mm pitches), it occupies two modular spaces, leaving room for auxiliary contacts or an earth-leakage block alongside. Depth is 77 mm, so it fits shallow enclosures without crowding the gland plate. IP20 finger protection is standard for panel-mount gear — no special handling needed inside a locked cabinet. The control coil accepts multiple voltages (230 V AC, 24 V AC, 48 V AC, 24 V DC, 48 V DC), so you can match it to your existing control transformer or DC supply without an extra converter. Remote control can be maintained (continuous signal) or impulse (pulse to toggle), giving flexibility for different automation schemes.
What else to know
Electrical durability is rated at 50,000 cycles under AC-1 resistive load at 50 Hz, matching the mechanical endurance of 50,000 cycles — so the switching mechanism and contacts wear evenly in normal service. The local signalling LED gives visual feedback: green for ON, red for fault, flashing for tripped or overheat, which speeds troubleshooting on the floor. Padlockable in the OFF position (provision for padlocking) meets lockout/tagout requirements for safe maintenance. Earth-leakage protection requires a separate Vigi block — not built in, so factor that into your BOM if GFCI is needed.