800T-J2A | Allen Bradley | 30mm 3-Position Selector Switch

Product Overview

The Allen Bradley 800T-J2A belongs to the rugged 800T series of 30.5 mm heavy-duty pilot devices. This 3-position selector switch manages complex manual sequence selections in industrial control panels. It features a maintained action, ensuring the switch stays in the selected position until an operator manually rotates the knob. We supply this unit as 100% Brand New original equipment, providing the mechanical durability required for oil-tight and dust-tight industrial environments.

Technical Specifications

The 800T-J2A utilizes a modular design to provide precise electrical state changes across three distinct physical positions.

Engineering Advantages

• Heavy-Duty Construction: The 800T-J2A features a die-cast zinc housing and a high-strength metal actuator. This "industrial-grade" build withstands physical impacts and constant use in manufacturing environments that would quickly degrade standard 22.5 mm plastic switches.

• Maintained Position Security: The maintained operator mechanism eliminates the risk of accidental spring-back. Once an operator selects a mode (such as Hand-Off-Auto), the switch physically locks into that detent, providing clear visual and tactile confirmation of the machine's operating state.

• Exceptional Environmental Sealing: The internal diaphragm and double-redundant seals prevent oil, coolants, and water from penetrating the contact block area. This design solves the common industrial pain point of switch failure due to fluid ingress in CNC machining or washdown areas.

• Flexible Contact Architecture: The modular 800T contact block system allows for easy field modifications. While this unit comes with a standard NO/NC configuration, the 30mm base accommodates additional contact blocks, allowing engineers to scale the control logic without changing the operator hardware.

FAQs

• Does the 800T-J2A require a special tool for panel mounting?

  The unit installs into a standard 30.5 mm hole. While a standard wrench works, we recommend using a 30.5 mm mounting tool (800T-N15) to achieve the specific torque required for a liquid-tight NEMA Type 4/13 seal against the panel surface.

• What is the significance of the "maintained" action?

  "Maintained" means the switch stays in whichever of the three positions you rotate it to. It does not return to a center or default position automatically. This is essential for applications like "Manual-Off-Automatic" where the system must remain in the selected mode until intentionally changed.

• Can I replace the contact block if the electrical terminals wear out?

  Yes. The 800T series utilizes a modular "stackable" contact block system. You can unclip the existing NO/NC block and snap on a replacement without removing the 30.5 mm operator from the panel door.

• Is the white insert on the black knob removable?

  The white insert provides high-contrast visibility for position marking. While factory-installed, the insert remains secure under vibration; however, the 800T series allows for different color knob caps if your facility requires color-coded operator logic.