7AM Series Thermal Protectors

The Klixon®7AM thermal protector prevents overheating in a variety of consumer, industrial and commercial products. It is a miniature, snap-acting, thermally operated device that is a proven performer in protection technology. It is the right choice for applications where available space is at a premium. Thermtrol can provide these units with a variety of leads, terminations and insulating sleeves to meet specific requirements, including nickel strip leads for NI-CAD battery packs.

 Contact Ratings
16VDC
20 ampres
115VAC
22 ampres
277VAC
8 ampres
600VAC
4 ampres
Ensure maximum contact needs, do not exceed these voltage/current combinations. These ratings are applicable for 10,000 cycles.
 Mechanical Specifications
Case Material:
 Nickel-Zinc Coated Steel
Insulator Material:
 Dacron-Mylar-Dacron* impregnated with a sealing epoxy
Lead Attachments:
 18AWG-22AWG Standard Termination
16AWG-14AWG Also Available
Lead Pull Strength:
 15lbs. Minimum Destructive Pull
®Klixon is a registered trademark of Texas Instruments, Inc.
*Dacron and Mylar are registered trademarks of E.I. DuPont de Nemours & Co., Inc.

Certifications
Klixon®thermal protectors are recognized by (UL),(CSA),(VDE) and others.

The Thermtrol Corporation quality assurance system is ISO9001:1994 certified for 7AM platform style thermostats and lead wire assemblies.     

FEATURES AND APPLICATIONS
Features:
  • Miniature Size
  • Current Rating up to 22 amps
  • Individually temperature calibrated and checked
  • Positive make and break with Klixon® snap-action disc
  • Reliable temperature performance over life of protector
  • Gasketed steel case suitable for impregnation processes
  • Current and temperature sensitivity for maximum design flexibility
  • Same side or opposite side terminiations
    		• Applications:
  • Battery Packs
  • Battery Chargers
  • Permanent split capacitor motors
  • Shaded pole motors
  • HID ballasts
  • Fluorescent lighting ballasts
  • Transformers
  • Vacuum Cleaners
  • Recessed lighting fixtures
  • Automotive accessory motors, solenoids, etc...
  • PC Boards


    • Selecting the 7AM Series for your application: example 7AM 202 A 5


     
    7AM
    202
    A
    5

     Model Type
    Opening Temperature Code
    Terminal
    Configuration
    Opening Temperature Tolerance ± 5ºC

     

    STEP 1:  Choose Opening Temperature

    Standard Opening Temperature
    Opening Temp.
    °C
    Low Resistance Bi-Metal
    70/cmf
    High Resistance Bi-Metal
    468/cmf
    65
    020
    200
    70
    021
    201
    75
    022
    202
    80
    023
    203
    85
    024
    204
    90
    025
    205
    95
    026
    206
    100
    027
    207
    105
    028
    208
    110
    029
    209
    115
    030
    210
    120
    031
    211
    125
    032
    212
    130
    033
    213
    135
    034
    214
    140
    035
    215
    145
    036
    216
    150
    037
    217
    155
    038
    218
    160
    039
    219
    165
    040
    220
    Nonstandard opening temperatures and bimetal resistances are available.

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    STEP 2:  Choose stat's terminal configuration Type A or B

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    STEP 3:  Choose Opening Temperature Tolerance

    Plus or minus 5 degrees Celcius

    Step 4: Determine Lead Configuration

    Lead Wire Configurations
    Thermtrol's state-of-the-art automated lead processing can produce lead wires to meet customer application needs for overall length, terminated connectors and stripped length requirements! Please specify wire gauge, conductor type, insulation type, and strip length/termination type when ordering lead wire assemblies.

    Lead Tolerances
    Unless specified otherwise by the customer, the following tolerances apply to all assemblies.
    Lead Lengths
    Minimum Pull Tests
     0" to 2"
     2.1" to 6"
     6.1" to 12"
     12.1" to 36"
     36.1" to 120"
     Over 120"
    +/-0.062"
    +/-0.125"
    +/-0.250"
    +/-0.500"
    +/-0.750"
    +/-1.000"
    Wire ga.
    Lead to Thermostats
    Lead to AMP Terminal
    22-20 ga
    18 ga.
    16-14 ga
    20 lbs
    20 lbs
    20 lbs
    20 lbs
    20 lbs
    50 lbs

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    STEP 5:  Choose Insulating Sleeve

    Sleeving
    In order to achieve optimum heat transfer from the protected medium or ambient to the thermostat, the 7AM has been designed with the case connected to the bimetallic disc. However, this features also makes it necessary to electrically insulate the 7AM from the mounting surface.
    Typically, this is accomplished with a Mylar sleeve available in 0.006-inch thickness, and marked with the part number. Custom markings and other sleeve materials can also be provided.

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    Ultimate Trip Current vs.
    Protector Ambient Temperature
    		 Average First Cycle Tripping Time vs.
    Current in 25°C Ambient
    (Approximate: to be used for selecting samples only)
    7AM performance is dependent upon the applied current. Use these curves to determine which 7AM will trip in the manner required for your application.

     

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