Low contact resistance electromechanical switch

An electromechanical switch comprising:

• a switch housing having a main body forming a chamber;
• fixed contacts coupled to the switch housing, each fixed contact having a mating end located in the chamber and a terminating end exterior of the switch housing, the fixed contact having a fixed mating surface at the mating end of the corresponding fixed contact, the fixed contacts being manufactured from a first metal material having a first material hardness;
• a movable contact in the chamber and movable between an open position and a closed position, the movable contact including movable mating surfaces configured to be coupled to the fixed mating surfaces at the mating ends of the fixed contacts in the closed position, the movable contact separated from the fixed contacts in the open position, the movable contact being manufactured from a second metal material different from the first metal material of the fixed contacts having a second material hardness different from the first material hardness;
• and
• an actuator in the chamber, the actuator including an armature operably coupled to the movable contact to move the movable contact during operation of the actuator.

An electromechanical switch comprising:

• a switch housing having a main body forming a chamber;
• fixed contacts coupled to the switch housing, each fixed contact having a mating end located in the chamber and a terminating end exterior of the switch housing, the fixed contact having a fixed mating surface at the mating end of the corresponding fixed contact, the fixed contacts being manufactured from a first metal material having a first material hardness;
• a movable contact in the chamber and movable between an open position and a closed position, the movable contact including movable mating surfaces configured to be coupled to the fixed mating surfaces at the mating ends of the fixed contacts in the closed position, the movable contact separated from the fixed contacts in the open position, the movable contact being manufactured from a second metal material different from the first metal material of the fixed contacts having a second material hardness different from the first material hardness;
• and
• an actuator in the chamber, the actuator including an armature operably coupled to the movable contact to move the movable contact during operation of the actuator;
• wherein at least one of the fixed mating surfaces and the movable mating surfaces includes textured surface features such that mating interfaces between the fixed contacts and the movable contact each have numerous points of contact.