Altech Corp S2 Contact Block, NC, Panel Mount, Silver, 22 mm, 10 A/600 V, 22mm Series

Product Specifications

Product Overview

The component you’ve described is a Normally Closed (NC) auxiliary contact block designed to be mounted on a contactor or starter. It acts as a signaling device, providing a electrical feedback signal about the state of the main device (e.g., whether a motor is running or stopped).

Detailed Specification Breakdown

• Manufacturer: Altech Corp

• Product Line: S2 (22mm Series)

• Type: Contact Block (Auxiliary Contact Attachment)

• Contact Configuration: NC – Normally Closed

  • This means the electrical circuit through the contact block is closed when the main device (e.g., contactor) is in its resting (de-energized) state.

  • When the main device is activated (energized), the contact block is mechanically pushed, causing the NC contacts to open the circuit.

• Mounting: Panel Mount

  • *Note: This is a slight point of clarification. Contact blocks are primarily designed to mount directly onto the side of a compatible contactor or relay (like TeSys D, or other 22mm footprint devices). “Panel Mount” might refer to the overall series being suitable for panel-mounted devices, or it could be a generic term in the data source. Its primary function is to be an accessory to a main component.*

• Color: Silver (typically refers to the finish of the actuator or housing)

• Width: 22 mm (This is a standard width, allowing multiple contact blocks to be stacked side-by-side on a contactor.)

• Electrical Rating: 10 A / 600 V

  • This is a robust rating, indicating it can handle significant current and voltage, suitable for controlling auxiliary circuits in industrial applications.

• Series: 22mm Series

Function and How It Works

1. Attachment: The S2 contact block physically snaps onto the side of a compatible Altech contactor or relay.

2. Actuation: The contactor has a small moving actuator. When the contactor coil is energized, the main contacts close to power a load (like a motor), and this actuator also moves.

3. State Change: The moving actuator on the contactor pushes a plunger on the contact block. For an NC block, this push forces the internal contacts to open.

4. Circuit Control: This change of state (from closed to open) is used in a control circuit. Common uses include:

   • Interlocking: Preventing another machine from starting if this one is running.

   • Indicator Lamps: Turning off a “Standby” or “Ready” light when the machine is active.

   • Logic Input for PLC: Sending a signal to a Programmable Logic Controller that the contactor has indeed pulled in.

Key Features and Benefits

• Modular Design: Can be easily added to or removed from a contactor without rewiring the main power circuit.

• High Visibility Color: The silver finish makes it easy to identify on a panel.

• Standard Footprint: The 22mm width ensures compatibility with a wide range of industry-standard contactors.

• Robust Rating: The 10A/600V rating makes it suitable for a variety of industrial control applications without needing an intermediate relay.

Typical Applications

This NC contact block is used across various industries for control and monitoring, including:

• Industrial Motor Control Centers (MCCs)

• HVAC Systems

• Pump Control Panels

• Conveyor Systems

• Machine Tools and Automation

Important Note: Finding the Exact Part

To purchase or find the exact technical datasheet, you will need the specific catalog number or part number. The description you provided is a set of features. A full part number would look something like S2XXXXX (where the X’s are specific digits/letters denoting the contact configuration and other options).

To find the correct part:

1. Go to the Altech Corporation website or a distributor like Allied Electronics, Digi-Key, or Newark.

2. Navigate to their “Contact Blocks” or “Control Relays & Accessories” section.

3. Use the filters to select:

   • Series: 22mm or S2

   • Contact Type: Normally Closed (NC)

   • Rating: 10A, 600V