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KSD314 series 60T big current bimetal disc thermostat
Description

KSD314 series snap-action thermostat is a kind of hermetically sealed bimetal thermal protector(3/4" disc). Working under resistive load, it has high loading capacity, and its max current could reach 45A. This series is suitable for high-duty electric appliances as temperature control or overheat protection.

KSD314 thermostat is divided into 6 sub-series according to different structures and applications, they are KSD314-V, KSD314-Q, KSD314-R, KSD314-U, KSD314-T and KSD314-F.

 

Technical Parameter of Sub-series:

Sub-series Action type Switch structure Rating Max. OT Life cycles
KSD314-V  Automatic reset   

SPST,Normal close 

or Normal open 

250V 45A

125V 45A  

140°C 10,000

250V 25A

125V 25A

180°C 100,000
KSD314-Q 

Dual temperature 

automatic reset

SPSTNormal close 

250V 45A

125V 45A 

140°C 10,000

250V 25A

125V 25A

180°C 100,000
KSD314-R Manual reset SPST,Normal close

250V 45A

125V 45A 

140°C 10,000
KSD314-U One shot type  SPST,Normal close

250V 45A

125V 45A 

140°C 100,000
KSD314-T 

Electrical self hold 

(Voltage maintain type) 

SPST,Normal close 

250V 45A

125V 45A 

140°C 10,000

250V 25A

125V 25A

180°C 10,000
KSD314-Q Automatic reset SPDT

250V 25A

125V 25A

180°C 100,000

Resistance between terminals: below 50 mΩ

 

Max temperature of different OT
OT≤50 OT:51~100 OT:101~145 OT:146~180
100(L)130(S) 140(L)170(S) 185(L)215(S) 205(L)235(S)

L:Long term

S: Less than 15 min
 

Installation and Direction for Use:

 

  • Method of earth: By means of the metal cup of thermostat connected in the earthing metal part.
  • The thermostat should work in environment with humidity not higher than 90%, free of caustic, flammable gas and conducting dust.
  • When the thermostat is used to sense the temperature of solid items, its cover should be clung to the heating part of such items. Meanwhile, heat-conducting silicon grease, or other heat media of similar nature, should be applied to the cover’s surface.
  • If the thermostat is used to sense the temperature of liquids or steam, it is strongly recommended to adopt a version with stainless-steeled cup. Moreover, cautious measures should be taken to prevent liquids getting into/onto the thermostat’s insulation parts.
  • The top of the cup must not be pressed to sink, so as to avoid adverse effect on the thermostat’s temperature sensitivity or its other functions.
  • Liquids must be kept out of the thermostat’s inner part! The base must avid any force that could lead to crack; it should be kept clear and away from the pollution of electric substance to prevent insulation weakening that leads to short-circuited damages.
  • The terminals should be bent, or else, the reliability of electric connection will be influenced.
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