Amperite 2NO90 is a heavy duty electronic time delay relay with a fixed cycle-on-time and an adjustable off-delay. It uses a built-in timing system and a NEMA 1 enclosure type. It is a two-pole, normally open, and single phase timing device, which is rated for 120 VAC and 40 AMPS. The 2NO90 is ideal for applications such as motor controls, temperature controls, pressure controls, batching controls, and others where accurate timing and control is desired. It has adjustable timing periods from 0.05 seconds to 10 minutes and a contact rating of SPDT (1 NO, 1 NC). This relay is also available with a NEMA 4, 4X enclosure option.