Abb CR305X100E Auxiliary Contact Adder

Product Description

The ABB CR305X100E is an auxiliary contact adder designed to expand the switching capacity of compatible motor starters and contactors. This add-on block mounts directly to the base contactor and provides additional normally open or normally closed contact points for control circuit wiring. It is a compact, low-profile unit suited for motor control centers, panel boards, and industrial control enclosures. Electricians and control panel builders install this type of accessory when additional feedback, interlocking, or status signaling contacts are needed beyond what the base unit supplies. Weighing approximately 0.11 pounds, it fits in tight enclosures without consuming significant space.

This auxiliary contact adder is intended for use with ABB CR305-series motor starters in commercial and industrial applications. Typical installation scenarios include motor control centers, machine tool panels, and pump control systems where auxiliary contacts are required for PLC input signals, indicator lights, or interlock circuits. Its compact dimensions of 3.5 inches by 1.5 inches by 0.75 inches allow straightforward snap-on mounting alongside existing contactor assemblies.

Key Features

• Snap-on auxiliary contact block expands control circuit capacity on base contactors
• Compact form factor at 3.5 x 1.5 x 0.75 inches fits space-constrained enclosures
• Lightweight at 0.11 pounds for easy handling during panel assembly
• Designed for use in motor control center and industrial panel applications
• Provides additional contact points for interlocking, feedback, or status signaling

Compatibility

Designed as an OEM-style auxiliary contact adder for use with ABB CR305-series motor starters and contactors.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize and lock out the contactor and all associated circuits before attaching or removing the auxiliary contact block. Verify that the contact block is fully seated and mechanically secured to the base contactor before restoring power. Do not exceed the rated current and voltage of the auxiliary contacts as specified by the manufacturer.

Technical Specifications

• Weight: 0.11 pounds
• Length: 3.5 inches
• Width: 1.5 inches
• Height: 0.75 inches
• UPC: 78316635215

Standard Information

• Brand: ABB
• Manufacturer Part Number: CR305X100E