• RTA421-A12A | RTA421A12A • Contactor with loop power supply for monitoring current or voltage signals (Limit Switch) : Serialno: 48081505/0010, U: 196…253V, 50/60Hz, S: 3,0VA, 0,315AT.• RTA421-A12A | RTA421A12A • Contactor with loop power supply for monitoring current or voltage signals (Limit Switch) : Serialno: 48081505/0010, U: 196…253V, 50/60Hz, S: 3,0VA, 0,315AT.• RTA421-A12A | RTA421A12A • Contactor with loop power supply for monitoring current or voltage signals (Limit Switch) : Serialno: 48081505/0010, U: 196…253V, 50/60Hz, S: 3,0VA, 0,315AT.