PILZ S1PN 200-240VAC 2c/o – 890200 | JUAL PILZ S1PN 200-240VAC 2c/o – 890200 – Phase sequence monitoring relay, to detect the phase sequence, the phase failure, the asymmetry of a three-phase supply, measuring voltage= supply voltage, 2 C/O contacts, width 22.5 mm, UB = 220 – 240 V AC.