Hartland Controls CON-AUX300-1 Single SPDT Auxiliary Contact Block for 3 Pole Contactors

The Hartland Controls CON-AUX300-1 is a single-pole double-throw (SPDT) auxiliary contact block designed for use with 3-pole contactors. This auxiliary switch provides additional normally open (NO) and normally closed (NC) contacts that operate in conjunction with the main contactor, allowing for enhanced control circuit functionality.

Key Features:

• SPDT configuration provides both normally open and normally closed contacts
• Compatible with Hartland Controls 3-pole contactors
• Side-mounted design for easy installation
• Ideal for signaling, interlocking, and control circuit applications
• Allows expansion of contactor control capabilities without replacing the main unit

This auxiliary contact block is commonly used in industrial control panels, motor control centers, and HVAC systems where additional switching contacts are needed for indicating circuits, safety interlocks, or sequencing operations. The auxiliary contacts switch mechanically with the main contactor, ensuring synchronized operation.