ABB JSHD4-3-AJ-A 2TLA019995R2300 is a three-position safety enabling switch with LED indication, a cable gland, 16 screw connections and an anti-tamper PCB for controlled industrial machine operation.
The ABB JSHD4-3-AJ-A is a professional three-position safety enabling switch designed for controlled machine operation during commissioning, programming, troubleshooting, adjustment and maintenance activities. As part of the ABB Jokab Safety JSHD4 series, it provides an ergonomic handheld safety interface for applications where personnel need controlled access to potentially hazardous machine areas.
The JSHD4-3-AJ-A uses a three-position enabling mechanism that permits machine operation while the actuator is deliberately maintained in its enabled middle position. Releasing the actuator or pressing it fully causes the enabling contacts to change state, allowing the associated safety control system to stop hazardous machine movement.
This JSHD4-3 configuration features integrated LED indication with no additional top or front pushbuttons. The AJ bottom section incorporates a cable gland and PCB with 16 screw connections, while the additional anti-tamper PCB provides hand-detection functionality designed to discourage intentional defeat of the enabling function.
Three-position enabling devices are used where personnel require controlled access to potentially hazardous machine areas while selected machine movements remain available. The ABB JSHD4-3-AJ-A allows the operator to deliberately maintain the required intermediate operating position, while releasing the actuator or pressing it fully changes the enabling contacts so the associated safety system can respond by stopping hazardous movement.
The modular ABB JSHD4 platform supports different top and bottom assemblies for varying machine interface requirements. The JSHD4-3-AJ-A combines LED indication with an AJ bottom section featuring a cable gland, PCB with 16 screw connections and dedicated anti-tamper electronics, providing a comprehensive hard-wired solution for machine builders and automation engineers requiring dependable operator enabling control.
| Manufacturer | ABB |
|---|---|
| Product range | ABB Jokab Safety |
| Series | JSHD4 |
| Model | JSHD4-3-AJ-A |
| Manufacturer part number | 2TLA019995R2300 |
| Product type | Safety control enabling device |
| Operating principle | Three-position enabling switch |
| Indicators | Integrated LEDs |
| Additional pushbuttons | None |
| Bottom section | AJ |
| Connection method | Cable gland and screw terminals |
| Terminal arrangement | PCB with 16 screw connections |
| Anti-tamper | Integrated anti-tamper PCB |
| Product net height | 167 mm |
| Product net width | 34 mm |
| Product net depth | 50 mm |
| Product net weight | approx. 0.334 kg |
| EAN | 7350024453577 |
| Country of origin | Sweden |
The JSHD4-3-AJ-A is a three-position enabling device used for controlled machine operation during activities such as commissioning, programming, adjustment, troubleshooting and maintenance.
The ABB manufacturer part number is 2TLA019995R2300.
The JSHD4-3-AJ-A uses an AJ bottom section with a cable gland and PCB providing 16 screw connections for hard-wired integration with the machine safety system.
Yes. The JSHD4-3-AJ-A incorporates an anti-tamper PCB providing hand-detection functionality designed to help prevent deliberate manipulation or defeat of the enabling function.
Yes. The JSHD4-3-AJ-A incorporates integrated LED indication as part of its JSHD4-3 top assembly.
No. The JSHD4-3-AJ-A has integrated LEDs but no additional top or front pushbuttons, providing a dedicated three-position enabling-device configuration.
ABB Jokab Safety JSHD4 enabling devices are designed for machine builders, automation engineers and maintenance professionals who require dependable operator-controlled safety functions during machine setup, programming, troubleshooting and servicing.
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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...