ABB AF38Z-30-00-21 Contactor

AF38Z-30-00-21 is a 3-pole power contactor from ABB’s AF38Z family, designed to switch motors and other heavy loads at up to 690 V across the main circuit, with a compact footprint (86 mm high, 45 mm wide, 86 mm deep) and a claimed weight of 0.35 kg. It provides three main contacts and no auxiliary contacts, and uses screw-type terminals for robust wiring. The coil voltage is versatile: 24–60 V AC or 20–60 V DC (50/60 Hz: 24–60 VAC; DC operation: 20–60 V). The device is rated for a variety of switching frequencies depending on load class: AC-1 up to 600 cycles/hour, AC-3 up to 1,200 cycles/hour, and AC-2/AC-4 up to 150 cycles/hour. Its short-time current ratings at 40 °C ambient include 350 A for 10 s, 50 A for 15 min, 150 A for 1 min, 700 A for 1 s, and 225 A for 30 s. It supports a main circuit voltage up to 690 V and an insulation voltage Ui of 690 V (IEC), with UL/CSA ratings around 600 V. The AF38Z-30-00-21 is rated for operation up to 3,000 m above sea level, and the terminal screws provide a circuit-control torque of 1.2 N·m and a main-circuit torque of 2.5 N·m. Auxiliary contacts are not included with this variant, making it a straightforward 3P contactor suited to 24–60 VAC or 20–60 VDC control coils in standard industrial motor control and general purpose switching applications.