ABB 1SFA611610R1011 Double contact block

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1. Product Overview

The ABB 1SFA611610R1011 Double Contact Block is a double contact block / auxiliary contact module designed for panel-mounted control devices such as pushbuttons and selector switches. It provides additional auxiliary contacts for logic control and feedback in industrial automation systems. This modular contact block features 1 Normally Open (NO) + 1 Normally Closed (NC) contact arrangement and is ideal for expanding control logic and signaling functions.TME

2. Main Technical Specifications

This contact block corresponds to type MCB-11 and is part of ABB’s modular pilot device accessory range.assets.unilogcorp.com

3. Advantages and Features

1. Modular and Flexible
   Compact and modular design allows easy integration with panel operators to expand control functions.

2. Dual Contact Functionality
   Provides both normally open and normally closed contacts, enabling advanced control logic and feedback.

3. Reliable Contact Performance
   Built-in self-cleaning contacts help maintain reliable operation over time.

4. Long Mechanical Life
   Designed for heavy use with a high number of operation cycles.

5. Broad Voltage Compatibility
   Suitable for both AC and DC control circuits across industrial environments.TME

4. Typical Applications

• Auxiliary signal output for industrial control panels

• Status feedback for PLC / DCS systems

• Logic interlocks for control switches

• Signal extension on machinery and production lines

• Auxiliary contact expansion in control cabinets

5. Installation and Operation Notes

1. Verify Contact Type: Ensure the NO/NC configuration meets the control logic requirements.

2. Install with Power Off: Always de-energize circuits before installation to prevent electrical shock or equipment damage.

3. Panel Compatibility: Confirm the switch/selector panel hole is 22 mm compatible.

4. Environmental Suitability: Avoid installation in excessively dusty, humid, or corrosive environments.

5. Maintenance: Periodically inspect contacts and mounting to ensure long-term reliability.

The structure and details of the product：

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