OEM replacement pressure switch available for three phase Ingersoll Rand Reciprocating Air Compressors and the 7.5 HP single phase 2475. Rated for applications between 135-175 psig. Designed for use with most three phase Ingersoll Rand reciprocating air compressor models including: 2340, 2475, 2545 and 7100. Also compatible with 5-7.5 HP single phase 2475 models. 135 psig cut-in, 175 psig cut-out Includes unloader valve NEMA type 1 enclosure. Does Not Have a Shut Off Switch on the Pressure Switch Extremely important to use Teflon Tape when installing on compressor. Please review video or contact our Air Tech team at 800-247-7378 for assistance