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Washing machines |
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Dishwashers |
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Vacuum cleaners |
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Chain saws |
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Trimmers |
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Lawn mowers |
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Pumps |
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Sensata > Products > Klixon Brand > Motor Controls >
Klixon® 3MP series motor protector and thermal cut-out
Self–hold, 250VAC 6(1)A
| Features and Overview |
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Snap–action Klixon disc |
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ENEC and UL approvals |
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120VAC and 230VAC |
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Compact design |
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Minimizes the total cost of the motor protection function |
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Provides higher level of safety for appliances having free access to rotating parts |
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Provides extra flexibility during the motor manufacturing process |
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Provides mounting flexibility and ease of handling |
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Guarantees to pass the UL 18 days locked rotor test in combination with high currents |
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Assures maximum protection under locked rotor conditions |
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European supply |
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Wide range of standard lead configuration available |
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Wide range of customization available, including: terminal configurations, leads, Mylar™ insulation sleeve, coding, colors |
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CODE: 3MP self–hold series
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Recent history has seen a growing demand for a non–self resetting motor protection device to ensure a
high level of safety. Sensata Technologies has developed the self–hold motor protector for both 120 and 230VAC
applications in a wide current range.
The operating principle of the 3MP self–hold is both simple and effective. The protector is actuated
by the heat received from surrounding parts. The electrical circuit is interrupted when the disc
reaches its pre–set open temperature. Due to the heat supply from the PTC pill, the bimetal disc
does not cool down below the close temperature. The contacts will remain open until the appliance
is switched off by the user, assuring a higher level of safety. when switched off, the device cools down to a
safe temperature again and the contacts will automatically reset.
The bimetal disc provides excellent thermal and current sensitivity in over–load situations. Under locked
rotor conditions the integrated heater in combination with the bimetal disc provides very accurate trip times
for maximum protection.
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| Performance Characteristics |
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Standard Operating Temperature Range |
80°C to 140°C in increments of 5K |
Tolerance on Open Temperature |
±8K |
Peak Temperature 5 minutes |
200°C |
Maximum Ambient Temperature |
T - open + 20°C |
Ambient Temperature to Guarantee Stable Self–Hold Function |
0°C |
Time check at T - ambient 25°C |
4 to 10 seconds |
Contact Rating Motor Protector |
Depends on application and its test results |
Contact Rating |
18.0 Amp @ cos 0.6 / 250VAC / 300 cycles |
Contact Rating Thermal Cutout |
250VAC 6 (1) Amp |
Contact Rating Motor Protector |
Depends on the application and its test results |
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UL |
File number E15962 |
UL2111 |
ENEC |
File number 2014531.07 |
EN60730-2-2 thermal motor protector |
| Declarations to EN60730-2-2 |
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Purpose of the control |
Thermal motor protector |
PTI of insulation materials |
PTI 175 |
Method of mounting |
Off–winding, fixed position, no mounting limitation |
Type of action |
Type 3C |
Reset characteristic |
Automatic and/or Voltage (This is maintained by PTC heater. Device resets by interrupting power supply) |
Control pollution degree |
1 (per IEC 60730-1 Third Edition) |
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