OEM Replacement Pressure Switch 23474570 For Air Compressors, 135 And 175 PSI, Four Port One Quarter Inch FNPT With Built In Unloader, Plug And Play, Compatible With Three Phase 2340 2475 2545 7100 And 7.5HP One Phase 2475

OEM replacement pressure switch 135/175 PSI, 4-port
✔️ 4x 1/4 FNPT ports, 135/175 PSI presets, built-in unloader

This single unit OEM replacement installs directly in compatible three-phase and single-phase air compressors. It replaces 23474570 units and works with 3-phase models 2340, 2475, 2545, 7100 and 7.5HP single-phase 2475. It maintains precise tank pressure with 135 PSI cut-in and 175 PSI cut-out, and includes a built-in unloader valve for smoother restarts.

✅ Direct replacement for 23474570 with 4x 1/4 FNPT ports for easy connections
✅ Pre-set 135 PSI cut-in and 175 PSI cut-out for stable tank pressure
✅ Built-in unloader valve reduces motor start current and wear
✅ Robust NEMA Type 1 enclosure designed for frequent cycling in industrial use
✅ Compatible with 3-phase 2340, 2475, 2545, 7100 and 7.5HP single-phase 2475 models

💡 What is a pressure switch used for in air compressor systems?

A handy feature that keeps the compressor cycling on and off at the right pressure, protecting the tank and motor. - pressure switch monitors tank pressure and triggers cut-in/cut-out at set PSI - built-in unloader valve eases startup and reduces motor stress - four 1/4 FNPT ports enable easy connections to tank, gauge, valve, and manifold