tender for modular push button / actuator with holder rear connection ( suitablefor panel mounting ) and plastic front ring in red colours as per siemens cat no.35b54000-0a-co1 or l&t cat no. hdisci or abb model no. m/m 10.2 contact block rearconnecting ( suitable for panel mounting ) 1no as per siemens cat no. 35b5400-oc orl&t cat no. hc61b2 or abb model no. mcbm01 ( one set consist 0+02 items) .