Abb thaux66d Auxiliary Contact Kit 2/3 Pole 400 600 Amp

Product Description

The ABB thaux66d is a double-pole double-throw (DPDT) auxiliary contact kit designed for use with 2-pole and 3-pole transfer switches and circuit breakers rated at 400 and 600 amps. Auxiliary contacts provide supplemental switching signals for control circuits, monitoring systems, and interlocking applications. The kit installs alongside the primary switching device to report open or closed status to downstream control panels or building automation systems. Electricians and industrial controls technicians are the primary installers of this type of accessory in both commercial and industrial electrical distribution systems.

This auxiliary contact kit is suited for industrial and commercial electrical installations where monitoring or interlock control of high-amperage switching equipment is required. It is appropriate for use in switchgear panels, motor control centers, and transfer switch assemblies operating at standard distribution voltages. The DPDT configuration provides both normally open and normally closed contacts in a single kit, supporting flexible control wiring schemes across a range of panel layouts.

Key Features

• DPDT contact configuration provides both normally open and normally closed outputs
• Compatible with 2-pole and 3-pole switching devices rated at 400 and 600 amps
• Designed for auxiliary signaling and interlocking in control circuit applications
• Accessory-category product designed to mount directly to the host switching device
• Environmental product declaration available (reference 1SQC920134D0201)

Compatibility

Designed as an OEM-style auxiliary contact accessory for 2-pole and 3-pole ABB industrial switching devices rated at 400 and 600 amps. Consult the host device documentation to confirm accessory fitment before ordering.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lockout/tagout the host switching device and all associated circuits before mounting or wiring auxiliary contacts. Verify that the contact kit is fully seated and mechanically secured to the host device before restoring power. Do not exceed the auxiliary contact circuit voltage and current ratings specified in the host device documentation.

Technical Specifications

• Contact Configuration: DPDT (Double-Pole Double-Throw)
• Compatible Pole Counts: 2-Pole and 3-Pole
• Compatible Amperage Ratings: 400 amps and 600 amps
• Product Category: Accessories
• GSA Compliance: No
• Environmental Product Declaration: 1SQC920134D0201

Standard Information

• Brand: ABB
• Manufacturer Part Number: thaux66d