Designed for Brush less Alternators with center tap P-P supply of 200 V AC from alternator stator winding Suitable for 3 Phase (415 V) or 1 Phase (220V) Brush less Alternators. Maximum output Excitation 90 V DC and 6 A DC. Suggested minimum Filed Resistance 12 Ohms. Under Frequency protection with LED indicator. Time delay Over Excitation Protection with LED indicator. Jumper Link for 50 / 60 Hz operation. Provision to connect remote potentiometer. High PIV power devices prevents catastrophic failure. Fuse Protection Mounting suitable for many type of Alternators. Size: 128 X 94 X 38 mm. Weight: 220 gm.