Details:

Voltage regulation at steady state and constant speed +/-0.5%

Phase-to-phase voltage sensing

Controlled by a transistor means that the quality of regulation is  of the applied load

Integrated "LAM" system for increased engine load

Suitable for high levels of viruses and harsh environments

R438 is compatible with other modules that provide additional functionality

Standard power supply: AREP or PMG

Rated overload current: 8A-10s

Electronic protection (overload, voltage induction circuit open circuit short circuit excitation overload current recovers to about 1A after 10 seconds).

Fuse: F1 on X1, X2.8A; slow-250V

Voltage sensing: 5VA, isolated by transformer

0-110V terminal=90-140V

0-220V terminal=170-260V

0-380V terminal=340-520V

Voltage regulation +/-1%

Normal or fast response time via ST2 jumper

Voltage adjustment via potentiometer P2

Current sensing (parallel): C.T. 2.5VA cl1, secondary 1A (optional)

Quadrature drop adjustment via potentiometer P1

Maximum, excitation current is adjusted by P5

For alternators: LSA 42.2, 43.2, 44.2

Compatible with AREP or PMG exit systems