KSD301 thermostat / bimetal thermal protector / KSD301
temperature protector KSD301 temperature protector's Principle
and structure The main principle of KSD series thermostat is
that one function of bimetal discs is snap action under
the change of sensing temperature. The snap action of disc can push
the action of the contacts through the inside structure, and
then caused on of off the circuit finally. The main
characteristic are the fixation of working temperature, the
reliable snap action, less flashover longer working life and less
radio interference.KSD301 thermostat's specificationVoltage &
CurrentAC 125V max 15A; AC250V 5A 10A 15A max
16AActionTemperature0~250ºCRecovery and action temperature
difference0 to 25 degrees, or according to client's
request.Temperature deviation:±3 / ±5 / ±10 degree or according to
client's requestCircuit resistance≤50mΩ (Initial value)Insulation
resistancAC50Hz 1500V / min, no breakdown blinding (Normal
State)Life cycle≥100000 timesContact typeNormally closed or
Normally openTwo kinds of mounting bracketmovable or
immovableTerminal typea. Terminal type: 187series of
4.8*0.5mm and 4.8*0.8mm, 250 series of 6.3*0.8mmb. Terminal
Angle: bending angle: 0~90°C optionalHouseplastic or
ceramic.Temperature sensor facealuminum cap or copper
head.KSD301 Difference of auto reset type and Manual reset
type3.1. Manual reset type: Temperature sensing components
consist of bimetallic strip. When the temperature reached the
action temperature range, it will jump quickly and the movable disc
disconnects. When the temperature declines to a fixed temperature
point, the contact point cannot reset until reconnecting the
circuit by pushing the reset button. And then the contact points
recover, reaching a purpose of connecting or disconnecting the
circuit and restarting the circuit by manual reset. (Kindly
reminder: 1.This type of manual reset thermostat can reset when the
temperature declines 20 °C after snap action by pressing the reset
button. And 4~6 N will be advisable; please don't use too much
strength. 2. To ensure the normal function, the distance between
the reset button and the close cover should not be less than
20.4mm. )3.2. Manual reset type: Temperature sensing components
consist of bimetallic strip. When the temperature reached the
action temperature range, it will jump quickly and the movable disc
disconnects. When the temperature declines to a fixed temperature
point, the contact point can auto reset and start
working.KSD301 bimetal thermostat's ApplicationIt is used as
temperature control for household electric appliances and widely
applied in coffee pots, automatic toasters, laminators, electric
water pots, steam guns, steam irons, wind warmers, microwave ovens,
water dispensers, etc.Open temp.Reset temp.Open temp.Reset
temp.Open temp.Reset
temp.-20ºC+-5ºC5ºC+-5ºC95ºC+-5ºC80ºC+-5ºC205ºC+-5ºC175ºC+-10ºC-15ºC+-5ºC5ºC+-5ºC100ºC+-5ºC80ºC+-10ºC210ºC+-5ºC180ºC+-10ºC-10ºC+-5ºC5ºC+-5ºC105ºC+-5ºC85ºC+-10ºC215ºC+-5ºC185ºC+-10ºC0ºC+-5ºC-10ºC+-5ºC110ºC+-5ºC90ºC+-10ºC220ºC+-5ºC190ºC+-10ºC5ºC+-5C-5ºC+-5ºC115ºC+-5ºC95ºC+-10ºC225ºC+-5ºC195ºC+-10ºC10ºC+-5ºC0ºC+-5ºC120ºC+-5ºC100ºC+-10ºC230ºC+-5ºC200ºC+-10ºC15ºC+-5ºC5ºC+-5ºC125ºC+-5ºC105ºC+-10ºC235ºC+-5ºC205ºC+-10ºC20ºC+-5ºC5ºC+-5ºC130ºC+-5ºC110ºC+-10ºC240ºC+-5ºC210ºC+-10ºC25ºC+-5ºC10ºC+-5ºC135ºC+-5ºC115ºC+-10ºC245ºC+-5ºC215ºC+-10ºC30ºC+-5ºC15ºC+-5ºC140ºC+-5ºC120ºC+-10ºC250ºC+-5ºC220ºC+-10ºC35ºC+-5ºC20ºC+-5ºC145ºC+-5ºC125ºC+-10ºC255ºC+-5ºC225ºC+-10ºC40ºC+-5ºC25ºC+-5ºC150ºC+-5ºC130ºC+-10ºC260ºC+-5ºC230ºC+-10ºC45ºC+-5ºC30ºC+-5ºC155ºC+-5ºC130ºC+-10ºC265ºC+-5ºC235ºC+-10ºC50ºC+-5ºC35ºC+-5ºC160ºC+-5ºC135ºC+-10ºC270ºC+-5ºC240ºC+-10ºC55ºC+-5ºC40ºC+-5ºC165ºC+-5ºC140ºC+-10ºC275ºC+-5ºC245ºC+-10ºC60ºC+-5ºC45ºC+-5ºC170ºC+-5ºC145ºC+-10ºC280ºC+-5ºC250ºC+-10ºC65ºC+-5ºC50ºC+-5ºC175ºC+-5ºC150ºC+-10ºC285ºC+-5ºC255ºC+-10ºC70ºC+-5ºC55ºC+-5ºC180ºC+-5ºC155ºC+-10ºC290ºC+-5ºC260ºC+-10ºC75ºC+-5ºC60ºC+-5ºC185ºC+-5ºC155ºC+-10ºC295ºC+-5ºC265ºC+-10ºC80ºC+-5ºC65ºC+-5ºC190ºC+-5ºC160ºC+-10ºC300ºC+-5ºC270ºC+-10ºC85ºC+-5ºC70ºC+-5ºC195ºC+-5ºC165ºC+-10ºCOr
according to client's
request90ºC+-5ºC75ºC+-5ºC200ºC+-5ºC170ºC+-10ºCThe product
UL,CQC,TUV and RoHS certification approval.
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