R438 AVR

Fuse: F1on X1,X2.10A;slow-250V

• Voltage sensing : 5 VA isolated via trans- former • 0-110 V terminals = 95 to 140 V • 0-220 V terminals = 170 to 260 V • 0-380 V terminals = 340 to 520 V for other voltages, a transformer should be used.
• Voltage regulation ± 0.5%
• Normal or rapid response time via jumper ST2 (see below)
• Voltage adjustment via potentiometer P2 or apply a DC voltage of ± 1 V on the terminals of the external potentiometer
• Current sensing: (parallel operation): input S1, S2 intended for 1 C.T. Š 2.5 VA cl1, secondary 1A (optional)
• Quadrature droop adjustment via potentio- meter P1