Auxiliary switch, product range: additional equipment, type code: P1, P3, lagging on, leading off., The normally open contact is always switched as a load shedding contact., for side mounting, left and/or right, contact configuration S = normally open contact: 1 S, contact configuration Ö = normally closed contact: 1 Ö, can be used for: P1-./Z, ./V, ./I2, ./IVS, P3-63/Z, ./V, ./I4, ./IVS, P3-100/Z, ./V, ./I5, ./IVS