Operation Manual

MARATHON SE350 VOLTAGE REGULATOR
The SE350 electronic voltage regulator is designed to control the output of a brush less AC
generator by regulating the current into the exciter field. Features include frequency compensation,
automatic voltage build-up and EMI suppression. The SE350 attaches to the generator with spade
type wire terminals for a secure connection. The SE350 has three adjustable potentiometers for fine-
tuning the output voltage, stability and under frequency. The regulator is encapsulated in a protective
plastic shell and back filled with a sealing compound, which provides protection from environmental
hazards.
SE350 Specifications:
Sensing and Power Input 190 – 240V AC
Burden 500VA
Output Power – Continuous 73V DC at 3.5 Amps DC (255W)
Output Power – Forcing 105V DC at 5 Amps DC (525W)
(240V AC input Power)
Regulation 1.0%
Frequency Compensation Adjustable
Roll Off Frequency 54 - 61 Hz for 60 Hz Operation
45 - 51 Hz for 50 Hz Operation
Voltage Build-Up Internal provisions for automatic voltage build-up
From generator residual voltage as low as 10V AC
EMI Suppression Internal Electromagnetic Interference Filter (EMI Filter)
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3 ADJUSTABLE POTENTIOMETERS, ACCESSED FROM OTHER SIDE
JUMPER JUMPER