Klixon® 7AM Series Thermal Protectors


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.

 

KLIXON PART NUMBERS WE STOCK FOR IMMEDIATE SHIPMENT

 Model Type

Opening Temperature Code (see chart below)
Terminal
Configuration
Opening Temperature Tolerance 5C
7AM

033

A
5
7AM

036

A
5
7AM

038

A
5
Note: Our stocked parts come complete with 4 inch leads and mylar insulating sleeve

 

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 5C

 

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.

 

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.

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

 

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
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. All 7AM platform style thermostats and lead wire assemblies are built under the quality assurance system ISO9001:1994 .     

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
  •  

    Ultimate Trip Current vs.
    Protector Ambient Temperature

    Average First Cycle Tripping Time vs.
    Current in 25C 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.