Square D 9999D20 Auxiliary Contact Module 2NO 600V 10A

The Square D 9999D20 is an external auxiliary contact module designed for use with Series B versions of the 8910DPA definite purpose contactors, 8911DPS definite purpose starters, and 8965 reversing hoist contactors. This module provides two normally open (2NO) contacts to expand control circuit capabilities.

Key Features:

• Two normally open (2NO) contact configuration
• NEMA B600 contact rating with maximum voltage of 600VAC
• 10A contact current rating for 50-90A contactors
• Side-mount design attaches directly to compatible contactors
• UL component recognized and CSA certified
• Quick-connect terminals enable easy straight-through wiring
• Compact, space-saving design
• Suitable for HVACR, pump controls, and industrial applications

This auxiliary contact module snaps onto either side of the main contactor, allowing for multiple modules to be added as needed for complex control circuits. The contacts operate mechanically with the main contactor, providing reliable switching for pilot lights, control relays, and signaling devices.