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Klixon MM Series |
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2MM Series |
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8MM Series |
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Small motors |
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Coils |
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Solenoid valves |
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Transformers |
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Sensata > Products > Controls > Motor Controls >
Klixon® 2MM series motor protector and thermal cut–out
250VAC 4 (1.5) A
| Features and Overview |
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Snap–action Klixon disc: field proven, reliable and repeatable snap–action bimetal actuation |
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ENEC, BEAB, CSA approvals |
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120VAC and 230VAC |
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Low profile shape for close coupling to on– or in–winding applications |
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Competitive performance to price ratio: maximum quality and reliability at a cost effective price |
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Maximum protection under locked rotor and overload conditions |
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Compact size for ease of installation, even in small places |
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Available in two versions: with epoxy insulation and with additional sleeve |
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CODE: 2MM series
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Sensata Technologies builds the 2MM motor protector to meet almost any requirement of protection in a wide range of small motors, small transformers, solenoids, and more. This compact motor protector is the best solution to protect the wide variety of motors used in industrial and domestic appliances against locked rotor and overload situations.
This motor protector consists of a metal housing that holds and protects the inner components against infiltration as well as mechanical deformation.
The can contains the calibrated Klixon disc carrying a silver contact. The fixed contact is placed on the opposite side, separated from the terminal by an insulator.
The operating principle of the 2MM is both simple and effective. A current flows through the resistive Klixon bimetal disc. when a fault condition occurs, the increased current and ambient temperature make the bimetal disc snap open the contacts. The contacts close again automatically as the device cools down to a safe running temperature.
In single–phase motors, the 2MM can be mounted directly in the main circuit to serve as an on– or in–winding protector.
At this time there is practically no small motor the 2MM cannot protect against overheating and overloading.
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| Performance Characteristics |
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Standard Operating Temperature Range |
70°C to 160°C in increments of 5K |
Tolerance on Open Temperature |
±10K |
Maximum Ambient Temperature |
175°C |
Differential |
20K minimum |
Maximum contact rating |
4 (1.5) Amp 250VAC (3000 cycles) |
Contact Rating Motor Protector |
Depends on application and its test results |
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UL |
File number E15962 |
UL2111 motor protecting device |
ENEC |
File number 2014531.06 |
EN60730-2-9 thermal cut-out |
File number 2014531.06 |
EN60730-2-2 thermal motor protector |
CSA |
File number LR11372 |
CSA-C22.2 No 0-M91 motor controller |
| Declarations to EN60730-2-9 |
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Purpose of the control |
Thermal cut–out |
Construction |
Incorporated, non–electronic |
Degree of protection |
IP00 |
Terminals for external conductors |
For internal conductors only |
Temperature limits of the switchhead |
175°C |
PTI of insulation materials |
Internal: PTI 175 | External: PTI 250 |
Method of mounting |
On–winding or by special means in the appliance |
Operating time |
For continuous operation |
Types of action |
Type 2C |
Reset characteristic |
Automatic |
Extent of sensing element |
Whole control |
Control pollution degree |
Dirty |
| Declarations to EN60730-2-2 |
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Purpose of the control |
Thermal motor protector |
PTI of insulation materials |
Internal: PTI 175 | External: PTI 250 |
Method of mounting |
On–winding or by special means in the appliance |
Type of action |
Type 3C |
Reset characteristic |
Automatic |
Control pollution degree |
Dirty |
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