SCR Card, Thyristor Power Pack and DC Motor Control SCR Triggering Cards for Phase Angle Control Single Phase (2 To 8KW) DIN Rail Mount SCR Based Power Regulator Thyristor Power Controller Zero Cross Over Turn On - SCR Firing Cards Burst Firing Card Thyristorized DC Motor Controllers TDM-1000 (¼ HP to 5 HP) & TDM-10 (¼ HP to 3 HP)