Key Technical Parameters General & Electrical Ratings Product / Model: ABB AL40‑30‑10 24VDC Contactors Part Number: Typically 1SBL323001R8110 Device Type: AC/DC Power Contactor No. of Poles: 3 (three‑phase main contacts) Auxiliary Contacts: 1 normally open (1 NO) Control/Coil Voltage: 24 V DC Control Circuit Type: DC operated with solid core magnet Current & Power Ratings Rated Operational Current (AC‑3): ~37 A at 415 V AC (typical duty) Rated Operational Current (AC‑1): ~60 A at 690 V AC (free‐air, 40 °C) Rated Insulation Voltage (Ui): ~1000 V AC Rated Breaking Capacity (AC‑3): ~8 × Ie Rated Making Capacity (AC‑3): ~10 × Ie Rated Operational Power (AC‑3): ~18.5 kW at ~380–400 V AC ~22 kW at ~440–500 V AC ~18.5 kW at ~690 V AC DC Load Capability (DC‑13): up to ~6 A at 24 V DC Mechanical & Switching Switching Frequencies: AC‑1: ~600 cycles/hour AC‑3: ~1200 cycles/hour AC‑2/AC‑4: ~300 cycles/hour Conventional Free‑Air Thermal Current (Ith): ~16 A (IEC rating for contact endurance) Operate / Release Times: Typical coil pull‑in and release in the tens of milliseconds range Control & Connections Coil Consumption: Low consumption DC coil suitable for driving directly from PLC or control circuitry Terminal Type: Screw terminals for main and control circuits Polarity: Respect polarity on DC coil terminals (A1+ and A2‑) Physical & Environmental Block‑Type Design: Compact, robust industrial contactor Ambient Operating Temperature: ~‑25 °C to +55 °C Mounting: Panel or DIN‑rail compatible in modular control panels Degree of Protection: Standard industrial housing (IP20 terminals) Applications Three‑phase motor starting and stopping in control panels Power circuit switching and isolation in industrial and commercial systems DC control systems such as PLC outputs and automated logic panels Control of lighting, heating, capacitor banks, and other loads up to the rated current