Dongguan Tianrui Electronics Co., Ltd
| Payment Terms | T/T, Paypal, Mastercard, Wetern Union, Alipay, etc |
| Supply Ability | 1000000PCS per Month |
| Delivery Time | 5-7 work days |
| Packaging Details | PE bag, Bulk |
| 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 |
| Brand Name | Tianrui |
| Model Number | 7AM |
| Certification | UL CSA KEMA |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Paypal, Mastercard, Wetern Union, Alipay, etc | Supply Ability | 1000000PCS per Month |
| Delivery Time | 5-7 work days | Packaging Details | PE bag, Bulk |
| 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 |
| Brand Name | Tianrui | Model Number | 7AM |
| Certification | UL CSA KEMA | Place of Origin | China |
| High Light | Operated Snap Bimetal Thermal Switch ，20A Bimetal Thermal Switch ，7AM Thermal Protector | ||
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
Standard Opening Temperature of 7AM Thermal Protector
| Open.Temp. ℃ | Low Resistance Bimetal Disc | High Resistance Bimetal Disc |
| Code | ||
| 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 E34618 | 2111 | Motor Protection |
| 873 | Limit and regulating controls | ||
| CSA | 11372 24458 | 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 |
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
MP/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363
Company Details
Business Type:
Manufacturer
Year Established:
2010
Total Annual:
9000000-9500000
Employee Number:
150~150
Ecer Certification：
Verified Supplier
Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 4,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, d... Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 4,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, d...
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