Key Features To Look For In Definite Purpose Contactors

Definite purpose (DP) contactors are designed to support electrical switching activity. They show up in a lot of industries, especially HVAC. If you're planning to buy some, make sure these features are offered.

Encased in Protective Materials 

If there's one thing you don't want happening to definite purpose contactors, it's for them to be exposed to dirty environments. Things like dirt and dust can hinder their performance and also cause part damage. You thus want to make sure you get DP contactors that are completely encased in protective materials.

Then it won't matter where these contactors are set up to support electrical switching activity. You can trust they'll perform consistently and their integral parts won't damage prematurely. This type of design also is going to reduce the number of times you have to visually inspect your contactors since they're surrounded by durable materials.

Rigorous Electrical Testing

Since DP contactors have an important role with electrical systems like an HVAC unit, they need to be rated to work safely and effectively long-term. You can put more faith in these qualities if you buy DP contactors that have been through rigorous electrical testing.

The manufacturer should perform these tests as soon as their contactors come out of manufacturing and comply with the appropriate electrical testing standards. You can then trust these contractors are going to hold up according to their planned life expectancy and not subject you to safety issues over the years. 

Optimal Mounting Brackets

In order to set DP contactors in a safe and effective manner, you'll want to use mounting brackets. Then you can keep these devices from moving around and thus protected from their surrounding environment. Just make sure this mounting bracket is optimal so that you don't struggle to get these electrical devices set up.

Look for mounting brackets that accept fasteners that you use on a regular basis. Then you won't have to purchase more and add to the installation costs of getting contactors set up to support switching activity for power circuits. Also, look for mounting brackets that are made from durable materials so that you don't have to make a bunch of adjustments with them later.

If you need to set up definite purpose contactors for systems like an HVAC unit, then it's paramount to be picky about which ones you purchase. That's going to result in safe electrical operations and fewer adjustments that you ultimately have to deal with.