ABB JSHD4-4-AH-A 2TLA019995R3100 is a three-position safety enabling switch with integrated LEDs, a front pushbutton, cable gland, 10 screw connections and anti-tamper electronics for controlled industrial machine operation.
The ABB JSHD4-4-AH-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 situations where personnel need controlled access to safeguarded machinery while selected machine functions remain available.
The JSHD4-4-AH-A combines a three-position enabling mechanism with integrated LED indication and a front pushbutton. The enabling function is intended to permit controlled machine movement while the actuator is deliberately held in its enabled position, with the associated safety system able to respond when the actuator is released or fully depressed.
This configuration uses the AH bottom section with a cable gland and PCB providing 10 screw connections for user-supplied cable installation. The JSHD4-4-AH-A additionally incorporates an anti-tamper PCB, providing a comprehensive configuration for industrial machine safety applications requiring an enabling device with additional protection against manipulation.
Three-position enabling devices are used where personnel require controlled access to potentially hazardous machine areas while selected machine movements remain available. The ABB JSHD4-4-AH-A provides dual enabling contact channels together with LED indication and a front pushbutton, allowing it to form part of an appropriately designed machine safety and operator-control system.
The modular ABB JSHD4 platform combines different top and bottom sections to meet varying machine-interface requirements. The JSHD4-4-AH-A combines the JSHD4-4 top section with the AH screw-terminal bottom section and anti-tamper electronics, providing machine builders and automation engineers with a versatile hard-wired enabling solution for commissioning and maintenance applications.
| Manufacturer | ABB |
|---|---|
| Product range | ABB Jokab Safety |
| Series | JSHD4 |
| Model | JSHD4-4-AH-A |
| Manufacturer part number | 2TLA019995R3100 |
| Product type | Safety control enabling device |
| Operating principle | Three-position enabling switch |
| Indicators | Integrated LEDs |
| Additional control | Front pushbutton |
| Bottom section | AH |
| Connection method | Cable gland and screw terminals |
| Terminal arrangement | PCB with 10 screw connections |
| Anti-tamper | Integrated anti-tamper PCB |
| Protection rating | IP65 |
| Performance Level | Up to PL e |
| Safety category | Category 4 according to ISO 13849-1 |
| Product net height | 167 mm |
| Product net width | 34 mm |
| Product net depth | 50 mm |
| Product net weight | approx. 0.318 kg |
| EAN | 7350024453652 |
The JSHD4-4-AH-A is a three-position enabling device designed for controlled machine operation during activities such as commissioning, programming, adjustment, troubleshooting and maintenance.
The ABB manufacturer part number is 2TLA019995R3100.
Yes. The JSHD4-4-AH-A includes an integrated front pushbutton together with LED indication and its three-position enabling mechanism.
The JSHD4-4-AH-A uses an AH bottom section with a cable gland and PCB providing 10 screw connections, allowing a suitable user-supplied cable to be hard-wired to the device.
Yes. The JSHD4-4-AH-A incorporates an anti-tamper PCB as part of its safety enabling-device configuration.
The JSHD4-4-AH-A is rated for safety applications up to Performance Level PL e and Category 4 according to ISO 13849-1 when correctly incorporated into the complete safety system.
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...