NEMA Contactors (Square D®) - Thermal OverloadsPart numberProduct detailsCount230540Thermo Protector Switch (B8.20) 230540+-230480Thermo Protector Switch (B15.5) 230480+-230500Thermo Protector Switch (B22) 230500+-230510Thermo Protector Switch (B32) 230510+-Add to quote