The contacts in standard control relays are designed to close or open immediately when electrical voltage is applied or removed. This is a useful property for normal powered connections because of the quick response. However, there are some applications, particularly in industrial equipment and machinery, where it is favourable for the operation of pertinent contacts to be delayed after the introduction or removal of voltage.
If this is the case, then you should install timer delay relays. As implied, these components delay before the contacts activate or deactivate. Basically, they will provide enhanced control of powered networks. Consequently, their installation will improve equipment safety and handling and promote energy efficiency in operations. If you decide to install timer delay relays, consider using these outlined guidelines for better equipment performance and relay durability.
Check the Contact Ratings
Timer delay relays are not homogenous in their capacity, so you should check the specifications of your product before installation. In simple terms, these components have a specific contact rating. This dictates the voltage or current that the relay can handle during operation. If your electrical loads exceed the capacity specified by the manufacturer, the relay is likely to sustain the damage and burn, and the connected machinery or equipment might also malfunction. You might also have other related problems such as the welding of the contacts due to the heat and insulation faults.
Install in Ideal Environment
The performance of the timer relays as well as the long-term function can be greatly affected by the ambient environment. Therefore, you should install the component in a suitable environment to ensure efficient performance and to prevent the accelerated damage of the relay. Typically, timer relays have specified optimal operating temperature and humidity. Exceeding the limits will cause damage to the contacts and internal components.
You should not use the product in the presence of water or oil, unless the model has been designed to resist these particular adverse conditions. You should not expose your relay to corrosive liquids or gases, dust or even sunlight. Additionally, these products come with a protective casing; this should always remain for environmental protection.
Understand the Switching Frequency
The switching frequency refers to the rate at which your timer delay relay will be switched on and off. For better functionality of your equipment, you should choose a timer which is recommended for your specific application. You should have the timer relay tested beforehand to confirm its compatibility. Where possible, reduce your switching rate because high frequency causes contact overheating.