4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector

4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal Protector

Product Details:

Place of Origin: China
Brand Name: Tianrui
Certification: UL CSA KEMA
Model Number: 7AM

Payment & Shipping Terms:

Minimum Order Quantity: 1000pcs
Price: USD0.30-0.42PCS
Packaging Details: PE bag, Bulk
Delivery Time: 5-7 work days
Payment Terms: T/T, Paypal, Mastercard, Wetern Union, Alipay, etc
Supply Ability: 1000000PCS per Month
Get Best Price Contact Now

Detail Information

Product Name: 7AM Thermal Protector Rated Current: 4A-20A
Rated Voltage: 600V AC Max Temperature Range: 65℃ To 175℃
Case: Metal Contact System: Normally Close, Normally Open
Tolerance: ±5℃ Wire Length: Customized
Feature: Sensitive Application: Motors, Transformers, Etc
High Light:

Operated Snap Bimetal Thermal Switch


20A Bimetal Thermal Switch


7AM Thermal Protector

Product Description

Motor Temperature Overload Protection Bimetal Thermal Switch Thermostat 7AM Thermal Protector 
General Description: The 7AM Thermal Protector is the market leader, backed by proven innovations in protection technology. The 7AM is a thermally operated snap-action device which delivers the maximum protection in the smallest package at an affordable price. The 7AM is a proven performer in protection technology with over 35 years of design experience combined with a modern state-of-the-art manufacturing facility.
Operation: The operating principle of the 7AM is both simple and effective. At the heart of the protector is a bimetal snap-action disc. When the
temperature of this disc reaches its pre-calibrated temperature it snaps open, resulting in an open circuit. This temperature is reached during a fault condition, caused by either an increase in ambient temperature, an increase in current flowing through the disc, or a combination of both. After the 7AM breaks the circuit, the system cools and the 7AM automatically resets allowing power to be restored to the circuit.
Quality: Each 7AM rating has a bimetal disc designed and manufactured for that specific temperature rating. Each individual device is then calibrated and checked for opening temperature. This results in precise operating characteristics necessary to achieve consistent, reliable performance over the required life cycle. This high level of performance is obtained through Texas Instruments' traditional emphasis on quality. A
corporate-wide thrust, re-emphasizes the supplier's responsibility and integrates modern statistical techniques into the production and quality
assurance processes. As continuous inputs to the quality monitoring systems, more than twelve different checks are made during the
manufacturing process.
Features of Bimetal 7AM Thermal Protector

• Over 3 billion sold
• Miniature size
• Individually temperature checked on modern, custom-designed equipment
• Positive make and break with Klixon snap-action disc
• Repeatable temperature performance over life
• Gasketed steel case suitable for most impregnation processes
• Current and temperature sensitivity for maximum design flexibility and application
• Wide selection of leads and insulating sleeves
Common Applications of Motor 17AM Thermal Switch

• Shaded pole motors
• Permanent split capacitor motors
• Fluorescent lighting ballasts
• HID ballasts
• Transformers
• Recessed lighting fixtures
• Battery packs
• Vacuum cleaners
• Automotive accessory motors, solenoids, PC boards and other applications
4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector 0
Standard Opening Temperature of 7AM Thermal Protector

Open.Temp. ℃ Low Resistance Bimetal Disc High Resistance Bimetal Disc
65 020 -
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
160 039 279
165 040 -
170 336 -
175 316 -

Certifications of 7AM Thermostat

Agency File Number Standard Number Application
UL E 15962
2111 Motor Protection
873 Limit and regulating controls
CSA 11372
C22.2, #77 Motor Protection
C22.2, #74 Limit and regulating controls
KEMA(ENEC) 2014531.03 EN 60730-2-2 Motor Protection
EN 60730-2-3 Ballast Protection
EN 60730-2-9 Thermal cut-out

Maximum Contact Ratings (10,000 Cycles) of 7AM Thermal Switch

Voltage Current
16 VDC 20 amperes
120 VAC 22 amperes
277 VAC 8 amperes
600 VAC 4 amperes

4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector 1
4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector 2
4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector 3
4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal  Protector 4

Want to Know more details about this product
I am interested in 4A-20A Bimetal Thermal Switch Operated Snap 7AM Thermal Protector could you send me more details such as type, size, quantity, material, etc.
Waiting for your reply.