Feature: 1. Thermal Circuit Breaker: Adjustable setting current connection, automatic and manual reset, optional, with test and stop buttons. 2. Good Conductivity: Silver alloy contacts improve electrical conductivity, more sensitive, and more load‑bearing. 3. Flame Retardant: Plastic shell is resistant to high temperature and does not deform, even if it encounters an open flame, it will only gradually carbonize. 4. Phase Failure Protection: Thermal overload relay has differential phase failure protection and flexible detection mechanism. 5. Specific Function: Rated insulation voltage 690V, with temperature compensation function, excellent performance. Specification: Item Type: Thermal overload relay Material: Silver alloy, flame retardant plastic Operating Frequency: 50HZ/60HZ Current Level: 20 Rated Insulation Voltage: 690V Phase Failure Protection: Yes Manual And Automatic Reset: Yes Temperature Compensation: Yes Test Button: Yes Installation Method: Independent Ambient Temperature: -5°C-+40°C . Package List: 1 x Thermal Overload Relay