Introduction
KI-66/67 series of thermal protector are widely used in electric motors for industrial, household appliance and other electric equipment. The KI-66/67 series can effectively and reliably guard against that damage cause by overflow and overheat. The shell is made from heat resistant and heat conductive PBT engineering plastic. The product is applicable on externally installed plastic sealed motors and household electric appliance. The shell of enhance type is applicable on internally install plastic sealed motors and capable of tolerating the 3.5Mpa technical pressure for plastic molding.
Structure and Protection Principle
KI-66/67 thermal protector is compose by neat conductive metal shell, bimetal component welded sliver alloy through current conductive frame, insulated fixing seat, static contact pad, heat resistant wire, etc. When the current goes through the bimetal component with impedance, if the current increase or environment temperature rises and the temperature reaches the reset value, the bimetal component will work and release the contact to shut off the current, and by contrast, if the device cool down to safe temperature, the contact point will reset automatically.
Configuration
Technical requirements for products |
1.Standard:GB14536.1-2008,Meet the ROHS instruction. |
2.Contact resistance: ≤50mΩ. |
3.dielectric strength:500VAC/0.5mA.2S no breakdown blinging(normal state). |
4.action temperature: 50 ~150°C. |
5.reset temperature:2/3 action temperature. |
6.contact type:normal open&normal close. |
7.max current:5A. |
8.tolerance:±5°C/±10°C. |
9.Standard lead length:L1=L2=70mm. |
10.body material:iron & plastic. |
11.reset type:auto reset. |
12.voltage:125VAC UL/CUL. |
250VAC VDE. |
250VAC 10.000times CQC. |
13.Mechanical performance:can support 3KG tension power. |
Ordinary temperature specification
specification | Action temperature | specification | Action temperature range |
50°C | 50±5.0°C | 100°C | 100±5.0°C |
55°C | 55±5.0°C | 105°C | 105±5.0°C |
60°C | 60±5.0°C | 110°C | 110±5.0°C |
65°C | 65±5.0°C | 115°C | 115±5.0°C |
70°C | 70±5.0°C | 120°C | 120±5.0°C |
75°C | 75±5.0°C | 125°C | 125±5.0°C |
80°C | 80±5.0°C | 130°C | 130±5.0°C |
85°C | 85±5.0°C | 135°C | 135±5.0°C |
90°C | 90±5.0°C | 140°C | 140±5.0°C |
95°C | 95±5.0°C | 145°C | 145±5.0°C |
150°C | 150±5.0°C |
Factory Tour
