ABB JSHD4-2-AJ-A 2TLA019995R1100 is an ergonomic three-position safety enabling switch with LEDs, front and top push buttons, a cable gland, 16 screw connections and integrated anti-tamper electronics for controlled industrial machine operation.
£621.31
The ABB JSHD4-2-AJ-A 2TLA019995R1100 is an ergonomic three-position safety enabling switch designed for controlled operation of industrial machinery when an operator needs to work within or close to a hazardous area. Part of the established ABB Jokab Safety JSHD4 range, this complete handheld device combines a three-position enabling mechanism with LED indication, front and top auxiliary push buttons and integrated anti-tamper electronics.
Three-position enabling devices are commonly used during troubleshooting, test running, programming, commissioning and machine adjustment. The JSHD4 allows limited machine movement while the enabling actuator is deliberately maintained in its enabled position. Releasing the actuator or pressing it beyond the enabled position removes the enabling condition, allowing the associated safety control system to stop hazardous machine functions.
The JSHD4-2-AJ-A configuration features a cable gland and an internal PCB with 16 screw connections, providing comprehensive hard-wired access to the enabling contacts, LEDs and auxiliary controls. The integrated anti-tamper PCB is designed to detect attempts to defeat the intended three-position enabling function, making this version particularly suitable for demanding machinery safety applications.
Three-position enabling switches provide operators with a controlled means of permitting machine movement during tasks that require access inside a safeguarded area. The ABB JSHD4-2-AJ-A uses two enabling contact channels, with the enabled condition maintained only while the operator deliberately holds the actuator in the appropriate operating position.
The AJ configuration is particularly useful for hard-wired machinery because its internal PCB provides 16 screw connections for the enabling contacts, LEDs and auxiliary controls. Combined with the integrated anti-tamper circuitry, front and top push buttons and ergonomic handheld design, the JSHD4-2-AJ-A provides a comprehensive operator interface for machine setup and servicing applications.
| Manufacturer | ABB |
|---|---|
| Series | JSHD4 / ABB Jokab Safety |
| Model | JSHD4-2-AJ-A |
| Manufacturer part number | 2TLA019995R1100 |
| Product type | Safety control enabling device |
| Operating principle | Three-position enabling switch |
| Enabling channels | Dual channel |
| Additional controls | Front push button and top push button |
| Status indication | Integrated red and green LEDs |
| Cable entry | Cable gland |
| Electrical connection | PCB with 16 screw connections |
| Anti-tamper function | Integrated anti-tamper PCB |
| Performance Level | Up to PL e |
| Safety Category | Up to Category 4 |
| Product width | 34 mm |
| Product height | 167 mm |
| Product depth | 50 mm |
| Product net weight | 0.178 kg |
| EAN | 7350024453454 |
The JSHD4-2-AJ-A is a three-position safety enabling device designed to permit controlled machine movement during troubleshooting, test running, programming, commissioning and maintenance tasks.
The JSHD4-2-AJ-A has a cable gland and internal PCB with 16 screw connections, providing hard-wired access to its enabling, indication and auxiliary control functions.
The device includes red and green LEDs, a front push button and a top push button in addition to its three-position enabling function.
Yes. The JSHD4-2-AJ-A includes an integrated anti-tamper PCB designed to help detect attempts to defeat the intended enabling-device operation.
When correctly incorporated into a suitable safety architecture, the JSHD4 enabling function can support applications up to Performance Level e (PL e) and Safety Category 4.
ABB Jokab Safety JSHD4 enabling devices are designed for industrial applications where operators require controlled machine movement during setup, programming and servicing. The JSHD4-2-AJ-A combines three-position enabling control, auxiliary buttons, LED indication, 16 screw connections and anti-tamper functionality in an ergonomic handheld device.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...