Magnetic Motor Starter, Non Reversing, NEMA Size 0, NEMA Type 1, Number Of Poles 3, Power Rating @ 230 VAC Three Phase 3 HP, Power Rating @ 460 VAC Three Phase 5 HP, Length 10 Inches, Height 5.56 Inches, Width 6 Inches, 208 VAC Coil, Three Thermal Units Required Sold Separately NEMA Magnetic Motor Starters with Standard Overload RelaysFull-voltage starters start and stop 1- and 3-phase AC motors. Manual push-to-test11 and visible trip indicator. Trip-free construction allows overload relay to trip even if reset lever is blocked or in the reset position. Normally open holding circuit contact for 3-wire control. Angled contacts provide high contact pressure and positive seating. Spring-assisted gravity dropout on de-energizing contacts quickly extinguishes any arcing.UL Listed and CSA Certified.Melting alloy thermal overload relays Class 20 thermal protection 2or 3-pole, 60/50 Hz, 600VAC max. Thermal units sold separately, page 317 Accessories and replacement parts on page 320