Home / CONTACTORS / Main Solenoids / SOL-400 Main Solenoid / Contactor 400 Amp 24V, 36V & 48V SOL-400 Main Solenoid / Contactor 400 Amp 24V, 36V & 48V$82.00 Voltage Choose an option24 Volt36 Volt48 VoltClear Add Optional Items :- Suppression Diode Only ($10.00) Pre-Charge Resistor Only ($12.00) Diode & Resistor ($22.00)