supply of over heat protection switch, for heater 25 amps /380-440 volt ac, operating temperature for the switch head- up to +130 degree c, 3 pole, probe length 85 mm, diameter of probe 12 mm, for lhb rmpu ac unit coaches, along with self destroying type excess temperature protector fusible link, which operates at temperature 130 degree c, with flange, confirming to rdso specification no. rdso/pe/spec/ac/0061-2005 (rev-1) or latest, suitable for use in lhb type rmpu ac coaches. accepted make : esti-schalteda25 of esti or any other make with prior approval of rdso.over heat protection switch, for heater 25 amps /380-440 volt ac, operating temperature for the switch head- up to +130 degree c, 3 pole, probe length 85 mm, diameter of probe 12 mm, for lhb rmpu ac unit coaches, along with self destroying type excess temperature protector fusible link, which operates at temperature 130 degree c, with flange, confirming to rdso specification no. rdso/pe/spec/ac/0061-2005 (rev-1) or latest, suitable for use in lhb type rmpu ac coaches. accepted make : esti-schalteda25 of esti or any other make with prior approval of rdso.,over heat protection switch, for heater 25 amps /380-440 volt ac, operating temperatur e for the switch head- up to +130 degree c, 3 pole, probe length 85 mm, diameter of probe 12 mm, for lhb rmpu ac unit coaches, along with self destroying type excess temperature protector fusible lin k, which operates at temperature 130 degree c, with flange, confirming to rdso specification no. rd so/pe/spec/ac/0061-2005 (rev-1) or latest, suitable for use in lhb type rmpu ac coaches. accepted make : esti-schalteda25 of esti or any other make with prior approval of rdso. [ warranty period: 30 months after the date of delivery ] ]