Tender For supply of over heat protection switch, for heater 25 amps /380-440 volt ac, operatin g 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 temperatureprotector fusible link, which operates at temperature 13 0 degree c, with flange, confirming to rdso specification no. rdso/pe/spec/ac/0061- 20 05 (rev-1), suitable for use in lhb type rmpu ac coaches [ warranty period: 30 months after th e date of delivery ]