ABB OA2G11 Auxiliary Contact Block 1NO+1NC for OT16-125F Switch-Disconnectors

The ABB OA2G11 auxiliary contact block is a precision-engineered component designed specifically for seamless integration with the OT16-125F series of switch-disconnectors. This device provides essential feedback on the operational status of the main switch, featuring a 1NO (normally open) and 1NC (normally closed) configuration. By offering reliable signaling, it enhances the monitoring capabilities of industrial electrical systems, ensuring that operators have real-time information regarding the position of the switch-disconnector.

Advantages

This auxiliary contact block is built to the high standards associated with ABB electrical components, ensuring long-term durability and consistent performance in demanding industrial environments. Its compact design allows for easy installation within existing switchgear configurations without requiring significant additional space. The robust construction minimizes the risk of mechanical failure, providing a dependable solution for status indication and control circuit interlocking. By utilizing this contact block, users can improve the safety and efficiency of their electrical distribution systems through accurate and instantaneous status reporting.

Suitable for

• Industrial electrical distribution systems
• Control and monitoring circuits for switch-disconnectors
• Automation panels requiring status feedback
• Safety interlocking applications

When it may not be suitable

This component is specifically designed for the OT16-125F series of switch-disconnectors and is not compatible with other switch series or different manufacturers. It should not be used in applications exceeding its rated electrical or mechanical specifications.

Key specifications

• Configuration: 1NO (Normally Open) + 1NC (Normally Closed)
• Compatibility: OT16-125F series switch-disconnectors
• Function: Auxiliary signaling and status monitoring
• Design: Compact modular block

How to use

The ABB OA2G11 is designed for quick and secure mounting directly onto the compatible switch-disconnector. Before installation, ensure that the main power supply to the switchgear is disconnected to prevent accidental contact. Align the contact block with the designated mounting interface on the switch-disconnector and snap it into place according to the manufacturer's installation instructions. Once mounted, connect the control wires to the appropriate terminals, ensuring that all connections are tightened to the specified torque to prevent loose contacts.

What to consider before purchase

• Verify that your switch-disconnector model belongs to the OT16-125F series.
• Ensure the control circuit voltage and current requirements match the contact block ratings.
• Confirm that there is sufficient physical space within the enclosure for the additional block.

Usage recommendations: Always perform a functional test after installation to verify that the auxiliary contacts correctly reflect the position of the main switch before putting the system into full operation.