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 Klixon® 7AM thermal protector
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. Mod-Tronic 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.
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KLIXON PART NUMBERS WE STOCK FOR IMMEDIATE SHIPMENT
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Model Type
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Opening Temperature Code (see chart below)
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Terminal
Configuration
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Opening Temperature Tolerance 5C
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7AM
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033
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A
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5
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7AM
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036
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A
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5
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7AM
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038
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A
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5
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Note: Our stocked parts come complete with 4 inch leads and mylar insulating sleeve
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Selecting the 7AM Series for your application:
example 7AM 202 A 5
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7AM
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202
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A
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5
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Model Type
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Opening Temperature Code
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Terminal
Configuration
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Opening Temperature Tolerance 5C
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STEP 1: Choose Opening Temperature
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Standard Opening Temperature
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Opening Temp.
C
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Low Resistance Bi-Metal
70 /cmf
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High Resistance Bi-Metal
468/cmf
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65
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020
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200
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70
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021
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201
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75
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022
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202
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80
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023
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203
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85
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024
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204
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90
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025
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205
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95
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026
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206
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100
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027
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207
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105
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028
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208
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110
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029
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209
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115
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030
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210
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120
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031
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211
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125
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032
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212
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130
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033
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213
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135
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034
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214
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140
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035
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215
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145
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036
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216
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150
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037
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217
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155
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038
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218
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160
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039
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219
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165
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040
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220
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Nonstandard opening temperatures and bimetal resistances are available.
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STEP 2: Choose stat's terminal configuration Type A or B
STEP 3: Choose Opening Temperature Tolerance
Plus or minus 5 degrees Celcius is standard
STEP 4: Determine Lead Configuration
Lead Wire Configurations
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.
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Lead Tolerances
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Unless specified otherwise by the customer, the following tolerances apply to all assemblies.
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Lead Lengths
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Minimum Pull Tests
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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"
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Wire ga.
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Lead to Thermostats
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Lead to AMP Terminal
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22-20 ga
18 ga.
16-14 ga
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20 lbs
20 lbs
20 lbs
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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.
| Contact Ratings |
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16VDC
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20 ampres
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115VAC
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22 ampres
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277VAC
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8 ampres
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600VAC
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4 ampres
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Ensure maximum contact needs, do not exceed these voltage/current combinations. These ratings are applicable for 10,000 cycles.
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| Mechanical Specifications |
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Case Material:
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Nickel-Zinc Coated Steel |
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Insulator Material:
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Dacron-Mylar-Dacron* impregnated with a sealing epoxy |
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Lead Attachments:
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18AWG-22AWG Standard Termination
16AWG-14AWG Also Available |
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Lead Pull Strength:
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15lbs. Minimum Destructive Pull |
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Klixon is a registered trademark of Texas Instruments, Inc.
*Dacron and Mylar are registered trademarks of E.I. DuPont de Nemours & Co., Inc.
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Certifications
Klixon® thermal protectors are recognized by (UL),(CSA),(VDE) and others. All 7AM platform style thermostats and lead wire assemblies are built under the quality assurance system ISO9001:1994 .
FEATURES AND APPLICATIONS
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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
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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
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Ultimate Trip Current vs.
Protector Ambient Temperature
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Average First Cycle Tripping Time vs.
Current in 25C Ambient
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| (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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