Rational 40 Control Transformer, T1 87 RATL87. Part can be used for several diverse rational units. if you'd like section quantity forty or 87 this is the management transformer you need. Technical Detailsprimary voltage200-250VACsecondary voltage18V/11/20 VAconnectionplugheight79,6 mmlength93,3 mmwidth78,1 mmversionwith fusetype87 Hzweight3,013 kg