What is the difference between Square D contactors Classes: 8502, 8903L, 8903S and 8910?
Issue: What is the difference between Square D contactors Classes: 8502, 8903L, 8903S and 8910?
Product Line: NEMA Contactors
Products sold and used in the United States
Cause: Selecting contactors based on application
The 8502, 8903 and 8910 are all designed for different purposes and are designed to different standards: 8502 are made for starting and stopping motors and are designed to NEMA standards. 8903L and 8903S are designed for lighting loads. 8903L is a lighter duty lighting contactor, available up to 12 pole which can have normally closed contacts. 8903S is a heavy duty lighting contactor available up to 800A and up to 5 poles with normally open contacts only. 8910 are Definite Purpose Contactors made for less frequent starting and stopping and are designed to ARI (Air Conditioning & Refrigeration Institute)standards.