Allen-Bradley 193-A2D2 Overload Relay SMP-1 Class 20 1.0-2.9A

Allen-Bradley 193-A2D2 SMP-1 Class 20 Overload Relay 1.0-2.9A is a solid-state overload protection device designed to accompany SMP-1 starters in industrial motor control. It covers a 1.0–2.9 A current range, meaning the relay trips to protect a motor when the operating current exceeds this range, and is labeled Class 20 for its trip characteristics. As part of the Bulletin 193 SMP-1 family, it is built to mount with compatible Allen-Bradley contactors/starters and to provide motor-protection coordination in standard industrial circuits. The SMP-1 overload relay conforms to UL 508, CSA C22.2 No. 14, IEC 947-4, and IEC 801-l parts 2–6, and supports Type 2 coordination at 600 V with up to 100 kA available fault current, enabling reliable protection in higher fault scenarios. The A2D2 suffix identifies this specific variant within the SMP-1 Class 20/1.0–2.9 A lineup, aligning with the broader SMP-1 product line’s emphasis on precise overload sensing for small to midsize motors in control panels and starter assemblies.