Power Supply, Essential, 120 Watt, 24 - 28 Volt DC Output, 120 Volt AC Input Reduce energy consumption—and costs. Allen-Bradley® Bulletin 1606 power supplies are compact and designed to accept a wide range of AC and DC voltages. And they meet most worldwide single- and three-phase requirements and all global safety standards. The 1606-XLE line is ultra slim while offering essential features. Catalog item 1606-XLE120EN from Rockwell Automation® is a 120 W, 90-132 V AC 50/60 Hz input, 24 V DC essential power supply. Allen-Bradley is a trademark of Rockwell Automation, Inc.