SCHNEIDER PAS60 Central control module

Schneider Electric Pushbutton Contact Blocks Overview

Schneider Electric offers a variety of pushbutton contact blocks that are essential components of modular control and signaling units. They work in conjunction with pushbutton heads, pilot light heads, selector switch heads, etc., to control various functions in industrial automation and electrical control systems.

Product Detailed Description

• Function:

• Converts the operator's mechanical action on the pushbutton head into an electrical signal.

• Provides normally open (NO) and/or normally closed (NC) contacts to control the connection or disconnection of circuits.

• Can be installed individually or used in combination with multiple contact blocks to achieve more complex functions.

• Some models offer slow-break or fast-break contacts to suit different application requirements.

• Features:

• Modular design for easy assembly and installation.

• Multiple contact configurations (e.g., 1 NO, 1 NC, 2 NO, 2 NC, 1 NO + 1 NC).

• Reliable electrical performance and mechanical life.

• Spring clamp or screw terminal connections for easy wiring.

• Some series offer dustproof and waterproof protection.

• Complies with relevant standards such as IEC 60947-5-1.

Product Parameters

As Schneider Electric offers a wide variety of pushbutton contact blocks, the following are some general parameters. Always refer to the official datasheet for the specific model:

• Contact Type:

• Normally Open (NO)

• Normally Closed (NC)

• Number of Contacts:

• 1, 2, or more (can be combined)

• Rated Operational Current (Ie):

• E.g., 3 A, 6 A, 10 A (depending on voltage and load type)

• Rated Operational Voltage (Ue):

• E.g., 24 V AC/DC, 110 V AC, 230 V AC, 400 V AC

• Rated Insulation Voltage (Ui):

• E.g., 600 V

• Conventional Free Air Thermal Current (Ith):

• E.g., 10 A

• Connection Type:

• Screw terminals

• Spring clamp terminals

• Faston terminals

• Contact Material:

• Silver alloy or other suitable materials

• Mechanical Life:

• E.g., millions of operations

• Electrical Life:

• E.g., hundreds of thousands of operations (depending on the load)

• Degree of Protection (IP):

• E.g., IP20 (contact block itself), higher IP rating when combined with a pushbutton head

• Operating Temperature:

• E.g., -25 °C to +70 °C

Product Advantages

• Modularity and Flexibility:

• Easy to combine with other control and signaling units to meet different functional requirements.

• High Reliability:

• Tested and proven electrical and mechanical performance ensures long-term reliable operation.

• Easy Installation and Wiring:

• Multiple connection methods simplify the installation process.

• Wide Range of Applications:

• Suitable for various industrial and commercial applications.

• Compliance with International Standards:

• Ensures compatibility and safety worldwide.

Precautions

• Correct Selection:

• Choose the appropriate contact block based on circuit requirements (NO/NC, number of contacts, rated voltage and current).

• Correct Installation:

• Follow Schneider Electric's installation guidelines, ensuring the contact block is securely mounted on the pushbutton head or adapter.

• Correct Wiring:

• Ensure wiring is correct and reliable to avoid short circuits or open circuits.

• Environmental Conditions:

• Ensure the operating environment temperature is within the permissible range and avoid harsh environments such as humidity and corrosive gases.

• Regular Inspection:

• Regularly check if the contact block connections are loose or damaged.

Product Applications

• Industrial Automation:

• Start, stop, emergency stop buttons on control panels and consoles.

• Control circuits for machines and equipment.

• Signal indication and alarm circuits.

• Building Automation:

• Lighting control, access control systems.

• Power Distribution:

• Operation of switching devices.

• Other Electrical Control Systems:

• Various occasions requiring manual operation for circuit control.

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