Description
Fully encapsulated bimetallic thermostat type KSD301 designed for reliable monitoring and protection against exceeding the set temperature. The thermostat is equipped with a thread for fixed mounting into metal parts of the device and has an NC (normally closed) contact, i.e. at a lower temperature it is closed and when the activation temperature is reached it opens the circuit. Thanks to the IP65 protection it is also suitable for more demanding operating conditions.
Technical specifications
Thermostat type: KSD301
Contact: NC (normally closed)
Working voltage: max. 250 V AC
Working current: max. 10 A
Contact load: 110 V AC / 15 A, 24 V DC / 20 A, 12 V DC / 30 A
Contact resistance: 50 m
Insulation resistance: 100 M
Connectors: Faston 6.3 mm
Thread: M3 / M4 / M5 / M6 (depending on variant)
Body material: bakelite, from 120°C ceramic
Dimensions: 33 × 20 mm
Wrench size: 17mm (open or ring)
Weight: 25g
Protection: IP65
Reset: automatic
Functions and features
Automatic disconnection when the set activation temperature is reached
Re-closing after cooling to reset temperature
Fully encapsulated design for long life
Easy assembly with thread
High current carrying capacity of contacts
Ideal for
Thermal protection of motors and transformers
Heating devices and temperature control
Power supplies and industrial electronics
Fans, heaters and power modules
Table of operating and reset temperatures
The KSD301 thermostat works with automatic reset. When the operating temperature is reached, the contact opens and after cooling to the reset temperature, the contact closes again.
25 °C ±5 °C reset 10 °C ±5 °C
30 °C ±5 °C reset 15 °C ±5 °C
35 °C ±5 °C reset 20 °C ±5 °C
40 °C ±5 °C reset 25 °C ±5 °C
45 °C ±5 °C reset 30 °C ±5 °C
50 °C ±5 °C reset 35 °C ±5 °C
55 °C ±5 °C reset 40 °C ±5 °C
60 °C ±5 °C reset 45 °C ±5 °C
65 °C ±5 °C reset 50 °C ±5 °C
70 °C ±5 °C reset 55 °C ±5 °C
75 °C ±5 °C reset 60 °C ±5 °C
80 °C ±5 °C reset 65 °C ±5 °C
85 °C ±5 °C reset 70 °C ±5 °C
90 °C ±5 °C reset 75 °C ±5 °C
95 °C ±5 °C reset 80 °C ±5 °C
100 °C ±5 °C reset 80 °C ±10 °C
105 °C ±5 °C reset 85 °C ±10 °C
110 °C ±5 °C reset 90 °C ±10 °C
115 °C ±5 °C reset 95 °C ±10 °C
120 °C ±5 °C reset 100 °C ±10 °C
125 °C ±5 °C reset 105 °C ±10 °C
130 °C ±5 °C reset 110 °C ±10 °C
135 °C ±5 °C reset 115 °C ±10 °C
140 °C ±5 °C reset 120 °C ±10 °C
145 °C ±5 °C reset 125 °C ±10 °C
150 °C ±5 °C reset 130 °C ±10 °C
155 °C ±5 °C reset 135 °C ±10 °C
160 °C ±5 °C reset 140 °C ±10 °C
165 °C ±5 °C reset 145 °C ±10 °C
170 °C ±5 °C reset 150 °C ±10 °C
175 °C ±5 °C reset 150 °C ±10 °C
180 °C ±5 °C reset 155 °C ±10 °C
Package contents
1× KSD301 thermostat with thread
Why choose this product?
Proven and widespread industrial type KSD301
High reliability and long service life
Wide range of activation temperatures
Easy to install and universal use
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