St-12 Thermal Cutout Switch, St-12 Bimetal Thermal Switch

• Life Cycle: 10000 Times
• Voltage & Current: 250V 16A
• Contact Type: Normally Closed or Normally Open.
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: ST-12
• Switch Type: Auto Reset or Manual Reset
• Transport Package: 1000 PCS Per Carton
• Specification: 21
• Trademark: HENGHAO
• Origin: Dongguan, China
• HS Code: 9032100000
• Production Capacity: 100000000000 Pieses /Year
• Package Size: 3.00cm * 6.00cm * 9.00cm
• Package Gross Weight: 0.100kg

Product Description

Product Description
ST-22 Bimetal Thermostat / ST-22 thermal protector
SEKI's bimetal thermostats are overheat protection devices for electric appliances and they are reusable parts that are reset when equipment cools. If the fault still exists, the motor protectors continue to automatically protect the equipment.
There're two models in our bimetal thermostat, ST-12 & ST-22. ST-12 is used for overheat protection for hair dryer, electric fan heaters, popcorn machines, electric ovens, dish dryers and etc. ST-22 bimetal thermostat is used for overheat protection for electric motors, fluorescent ballasts, battery chargers, transformers, solenoids, heating pads, OA-machines and etc.

Motor Protector: Snap Action, Automatic Reset Bimetals, Moisture-Proof, Dust-Proof, Superior Heat Response
ST-22 motor protector features snap action, automatic reset, moisture/dust proof, and superior heat response and high grade thermoplastic insulation, which can be used for overheat protection of Electric Motors, Fluorescent Ballasts, Battery Chargers, Transformers, Solenoids, Heating Pads, OA-machines and etc.
Application
Overheat Protection for Electric Motors, Fluorescent Ballasts, Battery Chargers, Transformers, Solenoids, Heating pads, OA-Machines ETC.
Temperature Setting range (at no load): 70°C ~ 150°C
Tolerance ±5°C
ON-OFF Differential Temp (general): 30 ± 15K
Heat Endurance: Open temp. +50°C/continuity, 200°C/1 min.
Life test (Resistive Load): 8A/125V 10,000 cycles, 5A/250V 10,000 cycles
Contact Capacity: Min. Current 50mA/continuity, Max. Current 30A/5 cycles
Application view


KSD301 Difference of auto reset type and Manual reset type
3.1. 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 Application
It 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+-5ºC	5ºC+-5ºC	95ºC+-5ºC	80ºC+-5ºC	205ºC+-5ºC	175ºC+-10ºC
-15ºC+-5ºC	5ºC+-5ºC	100ºC+-5ºC	80ºC+-10ºC	210ºC+-5ºC	180ºC+-10ºC
-10ºC+-5ºC	5ºC+-5ºC	105ºC+-5ºC	85ºC+-10ºC	215ºC+-5ºC	185ºC+-10ºC
0ºC+-5ºC	-10ºC+-5ºC	110ºC+-5ºC	90ºC+-10ºC	220ºC+-5ºC	190ºC+-10ºC
5ºC+-5C	-5ºC+-5ºC	115ºC+-5ºC	95ºC+-10ºC	225ºC+-5ºC	195ºC+-10ºC
10ºC+-5ºC	0ºC+-5ºC	120ºC+-5ºC	100ºC+-10ºC	230ºC+-5ºC	200ºC+-10ºC
15ºC+-5ºC	5ºC+-5ºC	125ºC+-5ºC	105ºC+-10ºC	235ºC+-5ºC	205ºC+-10ºC
20ºC+-5ºC	5ºC+-5ºC	130ºC+-5ºC	110ºC+-10ºC	240ºC+-5ºC	210ºC+-10ºC
25ºC+-5ºC	10ºC+-5ºC	135ºC+-5ºC	115ºC+-10ºC	245ºC+-5ºC	215ºC+-10ºC
30ºC+-5ºC	15ºC+-5ºC	140ºC+-5ºC	120ºC+-10ºC	250ºC+-5ºC	220ºC+-10ºC
35ºC+-5ºC	20ºC+-5ºC	145ºC+-5ºC	125ºC+-10ºC	255ºC+-5ºC	225ºC+-10ºC
40ºC+-5ºC	25ºC+-5ºC	150ºC+-5ºC	130ºC+-10ºC	260ºC+-5ºC	230ºC+-10ºC
45ºC+-5ºC	30ºC+-5ºC	155ºC+-5ºC	130ºC+-10ºC	265ºC+-5ºC	235ºC+-10ºC
50ºC+-5ºC	35ºC+-5ºC	160ºC+-5ºC	135ºC+-10ºC	270ºC+-5ºC	240ºC+-10ºC
55ºC+-5ºC	40ºC+-5ºC	165ºC+-5ºC	140ºC+-10ºC	275ºC+-5ºC	245ºC+-10ºC
60ºC+-5ºC	45ºC+-5ºC	170ºC+-5ºC	145ºC+-10ºC	280ºC+-5ºC	250ºC+-10ºC
65ºC+-5ºC	50ºC+-5ºC	175ºC+-5ºC	150ºC+-10ºC	285ºC+-5ºC	255ºC+-10ºC
70ºC+-5ºC	55ºC+-5ºC	180ºC+-5ºC	155ºC+-10ºC	290ºC+-5ºC	260ºC+-10ºC
75ºC+-5ºC	60ºC+-5ºC	185ºC+-5ºC	155ºC+-10ºC	295ºC+-5ºC	265ºC+-10ºC
80ºC+-5ºC	65ºC+-5ºC	190ºC+-5ºC	160ºC+-10ºC	300ºC+-5ºC	270ºC+-10ºC
85ºC+-5ºC	70ºC+-5ºC	195ºC+-5ºC	165ºC+-10ºC	Or according to client's request
90ºC+-5ºC	75ºC+-5ºC	200ºC+-5ºC	170ºC+-10ºC

The product UL,CQC,TUV and RoHS certification approval.