ABB JSHD4-2-AJ 2TLA019995R1000 is an IP65 three-position safety enabling switch with LEDs, front and top push buttons, cable gland and 16 screw connections for controlled industrial machine operation.
£488.71
The ABB JSHD4-2-AJ is an ergonomic three-position safety enabling switch designed to provide controlled machine operation when an authorised operator needs to work within a hazardous area. Identified by ABB order code 2TLA019995R1000, it forms part of the ABB Jokab Safety JSHD4 series of handheld enabling devices for industrial machinery and automation systems.
The JSHD4-2-AJ uses a three-position enabling mechanism so that machine movement can be permitted only while the operator intentionally holds the device in its enabled position. Releasing the switch or pressing it fully provides the safety switching response required by the control system, making the device particularly suitable for troubleshooting, test running, programming and other tasks where limited machine movement may be required.
This version combines the JSHD4-2 upper section with LEDs, a front push button and a top push button with the AJ bottom section featuring a cable gland and PCB with 16 screw connections. Its robust IP65-rated construction, ergonomic handheld format and safety performance of up to PL e make it well suited to demanding industrial machine-safety applications.
Three-position enabling devices are used where an operator must perform tasks near potentially hazardous machine movement while retaining direct control over whether movement is permitted. The ABB JSHD4-2-AJ is designed so that the safety system can enable controlled movement only while the enabling switch is deliberately maintained in its intended operating position.
The device is particularly useful during machine commissioning, fault finding, adjustment, programming and test running. Its additional front and top buttons can be incorporated into machine-control functions, while the integrated LEDs provide convenient visual status indication. The 16-terminal screw connection arrangement provides flexibility when integrating these functions into an industrial safety-control system.
| Manufacturer | ABB |
|---|---|
| Product family | ABB Jokab Safety JSHD4 |
| Model | JSHD4-2-AJ |
| Order code / SKU | 2TLA019995R1000 |
| Product type | Safety enabling switch / three-position enabling device |
| Number of enabling positions | 3 |
| Safety contacts | 2 change-over contacts |
| Additional controls | Front push button and top push button |
| Status indication | Integrated LEDs |
| Electrical connection | Cable gland with PCB and 16 screw connections |
| Switching element | Quick-break switch |
| Rated operating current | 0.02 A at 24 V DC, DC-12 |
| Performance level | Up to PL e according to EN ISO 13849-1 |
| Safety category | Category 4 according to ISO 13849-1 |
| Protection rating | IP65 |
| Net height | approx. 167 mm |
| Net width | approx. 34 mm |
| Net depth | approx. 50 mm |
| Net weight | approx. 0.314 kg |
| EAN | 7350024453447 |
The ABB JSHD4-2-AJ is a three-position safety enabling switch used to permit controlled machine movement when an authorised operator is working in or near a hazardous machine area, such as during troubleshooting, programming or test running.
The ABB order code and SKU for the JSHD4-2-AJ enabling switch is 2TLA019995R1000.
The JSHD4-2-AJ has a cable gland and PCB with 16 screw connections, allowing its enabling contacts, LEDs and auxiliary push buttons to be hard-wired into the machine safety and control system.
The device is suitable for safety functions with performance levels up to PL e and Category 4 according to EN ISO 13849-1 when correctly integrated into an appropriate safety-control architecture.
Yes. The JSHD4-2-AJ includes LED status indicators, a front push button and a top push button in addition to its three-position enabling function.
ABB Jokab Safety JSHD4 enabling devices are designed for industrial machine-safety applications where operators need ergonomic, dependable control during setup, troubleshooting, programming and controlled machine movement.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...