ABB jshd4-5-aj Enabling Switch

Why Choose the ABB JSHD4-5-AJ Enabling Switch?

The ABB JSHD4-5-AJ is an ergonomic three-position safety enabling switch designed for controlled machine operation when an authorised operator needs to work within or close to a hazardous machine area. Identified by ABB order code 2TLA019995R4200, it forms part of the ABB Jokab Safety JSHD4 series of handheld enabling devices for industrial machinery, robotics and automation systems.

The JSHD4-5-AJ combines a three-position enabling mechanism with integrated red and green LED indicators and an auxiliary top button. Its three-position operating principle allows the connected safety system to permit machine movement while the operator intentionally maintains the enabling control in its enabled position. Releasing or fully depressing the actuator changes the safety contact state, making the device particularly suitable for commissioning, troubleshooting, programming, adjustment and test-running operations.

This configuration combines the JSHD4-5 top section with the AJ bottom section featuring a cable gland and PCB with 16 screw connections. The full terminal arrangement provides flexible hard-wired integration of the enabling contacts, LEDs and auxiliary top-button functions into machine safety systems. With safety performance up to PL e and Category 4, the JSHD4-5-AJ is designed for demanding industrial safety applications.

Key Advantages

• Ergonomic three-position enabling switch for industrial machine safety.
• Designed for controlled machine movement during commissioning, troubleshooting and programming.
• Integrated red and green LED indicators provide clear visual status feedback.
• Integrated top auxiliary push button provides additional operator-control functionality.
• 16 screw connections provide full and flexible hard-wired integration into safety and control circuits.
• Cable gland connection allows the installer to select a suitable application-specific cable.
• Safety performance of up to PL e.
• Category 4 safety capability according to ISO 13849-1.

Key Features

• ABB Jokab Safety JSHD4 series.
• Three-position handheld enabling device.
• Integrated red and green LED indicators.
• Integrated top auxiliary push button.
• AJ bottom section with cable gland.
• PCB with 16 screw connections.
• Two enabling channels with change-over contact connections.
• Dedicated connections for LED and auxiliary control functions.
• Suitable for integration with safety relays, safety PLCs and industrial machine controls.
• Designed for deliberate operator-controlled enabling during machine setup and hazardous-area access.

Flexible Hard-Wired Control for Machine Safety

Three-position enabling devices such as the ABB JSHD4-5-AJ are designed for situations where machine commissioning, maintenance, troubleshooting or programming requires an operator to remain close to potentially hazardous movement. The enabling principle allows the associated safety system to permit movement only while the operator deliberately maintains the handheld control in its intended enabled position.

The JSHD4-5-AJ provides extensive connection flexibility through its AJ bottom section and PCB with 16 screw terminals. Separate connections support the two enabling channels, red and green LED indicators and auxiliary top-button functions, allowing machine builders and automation engineers to incorporate the device into customised hard-wired safety architectures.

Typical Applications

• Industrial machinery troubleshooting and fault finding.
• Machine commissioning and test running.
• Robot cells and automated manufacturing equipment.
• Machine programming and setup operations.
• Packaging and processing machinery.
• Assembly and production equipment.
• Safety PLC and safety relay controlled systems.
• OEM machinery requiring flexible hard-wired three-position enabling control.