Dimensioning the thermal protector in electric motors correctly is a key aspect of ensuring products are safe, reliable and compliant with the Directives when placing them on the market.
This can be done error-free and effectively when you know the environment where the product will operate and the applicable standard that governs its operation.
Came offers a specialized technical consultancy to verify the thermal protection:
1. Analysing the locked rotor current measured by testing your electric motor on the bench;
2. Measuring the temperature reached under the rated load conditions at the rated voltage.
One of two options is recommended, depending on the current and temperature values:
1. Thermal protector if the inrush currents are low and the winding temperature does not rise too sharply;
2. Thermo-amperometric protector if Icc is high and tripping needs to be fast.
This means carefully balancing the regulations (max. permissible temperatures and no. of cycles), performance and costs.
The result of correct thermal dimensioning
A properly dimensioned protector can prevent inconvenient situations, e.g. tripping when not required, while also preventing hazardous situations that could degenerate into fires, potentially with very serious consequences for people and property.
Compliance with EN regulations on electric motor protection
The Came verification service aims to help you comply with the European regulations in force, including IEC EN 60335-1 – “Safety of electrical appliances for household and similar purposes”, which sets out the requirements for household appliances and small motors.
Complete technical documentation for certification
At the end of the verification, Came provides a detailed technical report, which is useful during product certification or to demonstrate compliance during quality checks and audits.
The Came thermal protector verification service aims to make your products more competitive by reducing costs and ensuring compliance with European regulations on safety and performance.
