CHINT Side Mount Auxiliary Contact 1NO+1NC (NS2-80B)

• The CHINT AUX-NS2-80B-AU11 is a side-mounting auxiliary contact block designed explicitly for the NS2-80B series button-operated manual motor starters.
• It features one Normally Open (1NO) and one Normally Closed (1NC) contact set that mirrors the operational state of the main starter contacts.
• This accessory is essential for integrating the NS2-80B starter into broader control systems, enabling remote status indication, electrical interlocking, and other automated functions.

Features

• Contact Configuration: 1NO + 1NC

• Mounting Type: Side Mount (Left side of starter)

• Compatibility: Specifically designed for NS2-80B series motor starters

• Secure Snap-On Installation

• Provides Electrically Isolated Contacts

Benefits

• Remote Status Feedback: Allows external control systems (PLCs, indicator lights) to determine if the NS2-80B starter is engaged (ON) or disengaged (OFF/Tripped).

• Control System Interlocking: Enables safety features or operational sequences by linking the starter's status to other devices or circuits.

• Facilitates Automation: Allows the button-operated NS2-80B starter to provide feedback necessary for automated control environments.

• Flexible Signaling: Offers both NO and NC contact states to accommodate diverse control circuit designs.

Technical Specifications

• Model: AUX-NS2-80B-AU11 (Functionally equivalent to NS2-AU11 type, specifically designated for NS2-80B)

• Contact Configuration: 1 Normally Open + 1 Normally Closed

• Rated Insulation Voltage (Ui): 690V

• Conventional Thermal Current (Ith): 6A

• Rated Impulse Withstand Voltage (Uimp): 4kV (Based on standard NS2-AU11 specs)

• Rated Operational Current (Ie) & Voltage (Ue) (Based on standard NS2-AU11 specs):

  • AC-15:

    • 3.3A @ 230/240V

    • 2.2A @ 380/415V

    • 1.5A @ 440V

    • 1A @ 500V

    • 0.6A @ 690V

  • DC-13:

    • 0.5A @ 220V

    • 1.3A @ 110V

    • 3A @ 60V

    • 5A @ 48V

    • 6A @ 24V

• Terminal Markings (Typical for AU11 type): (73)43-44(74) for NO, (61)31-32(62) for NC

• Standards: Conforms to auxiliary contact requirements within IEC/EN 60947 standards.

Ideal Use

• Installations using NS2-80B starters where external feedback of the starter's status is required.

• Control panels needing electrical interlocks between the NS2-80B starter and other components.

• Adding visual run/stop/trip status indicators for motors controlled by NS2-80B starters.

• Connecting NS2-80B starters to PLC input modules or relay logic circuits.

Tips

• Installation: Ensure the NS2-80B starter is completely de-energized before installation. Align the auxiliary block with the mounting slots on the left side of the starter and push firmly until it securely clicks into place (Refer to Figure 3 in NS2-80B User Instruction for assembly method).

• Wiring: Use appropriate wire sizes for control circuits and connect to the relevant terminals (e.g., 43-44 for NO, 31-32 for NC). Ensure secure screw connections.

• Compatibility: This model AUX-NS2-80B-AU11 is specifically designated for the NS2-80B starters.

• Testing: After installation, manually operate the NS2-80B starter's buttons (if safe) and use a continuity tester or multimeter to verify that the NO contact closes and the NC contact opens when the starter is ON, and vice-versa when OFF.