ABB JSHD4-3-AD-A 2TLA019995R1500 is an ergonomic three-position safety enabling switch with dual-channel enabling contacts, integrated LED indication, an M12-8 male connection and anti-tamper functionality for controlled industrial machine operation.
The ABB JSHD4-3-AD-A 2TLA019995R1500 is an ergonomic three-position safety enabling switch designed for controlled machine operation during troubleshooting, programming, commissioning and maintenance activities. Part of the ABB Jokab Safety JSHD4 range, this complete handheld enabling device combines the three-position safety function with integrated LED indication and anti-tamper functionality.
The JSHD4 three-position operating principle allows machinery to be enabled while the operator deliberately maintains the actuator in its centre enabled position. Releasing the actuator or pressing it fully removes the enabling condition, allowing the associated machine safety system to stop hazardous movement. This makes the device particularly useful where authorised personnel need controlled access to machinery during setup or servicing.
The JSHD4-3-AD-A combines the JSHD4-3 upper section, featuring LED indication without additional push buttons, with the AD lower section featuring an 8-pole M12 male connector. This version also incorporates an anti-tamper PCB, providing additional monitoring of the enabling device while retaining a compact, quick-connect design.
Three-position enabling devices are designed for situations where authorised personnel need to operate or move machinery while normal safeguarding arrangements cannot provide the required access. The ABB JSHD4-3-AD-A provides a deliberate enabling function so that machine operation can remain permitted only while the operator actively maintains the enabling actuator in its intended position.
The combination of dual-channel enabling contacts, LED indication and anti-tamper functionality provides a robust interface for safety-related machinery control. Its M12-8 male connector also simplifies installation and replacement, making this JSHD4 configuration well suited to machinery where convenient plug-and-play connection is desirable.
| Manufacturer | ABB |
|---|---|
| Series | JSHD4 / ABB Jokab Safety |
| Model | JSHD4-3-AD-A |
| Manufacturer part number | 2TLA019995R1500 |
| Product type | Safety control enabling device |
| Operating principle | Three-position enabling switch |
| Enabling channels | Dual channel |
| Channel 1 contacts | COM1, NO1 and NC1 |
| Channel 2 contacts | COM2, NO2 and NC2 |
| Status indication | Integrated red and green LEDs |
| Auxiliary push buttons | None |
| Connection | M12-8 male connector |
| 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 | 117 mm |
| Product depth | 50 mm |
| Product net weight | 0.315 kg |
| EAN | 7350024453492 |
The JSHD4-3-AD-A is a three-position safety enabling device designed for controlled machine operation during activities such as troubleshooting, programming, setup, commissioning and maintenance.
The JSHD4-3-AD-A uses an 8-pole M12 male connector, providing a compact and convenient connection to the associated machine safety and control system.
No. The JSHD4-3 upper section provides LED indication without additional push buttons, making this configuration suitable where a straightforward enabling interface is preferred.
Yes. The JSHD4-3-AD-A incorporates an anti-tamper PCB as part of this enabling-device configuration.
When correctly incorporated into a suitable machine 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 provide machine builders, automation engineers and maintenance professionals with controlled machine-operation solutions for setup and servicing. The JSHD4-3-AD-A combines three-position enabling control, dual-channel contacts, LED indication, an M12-8 connection 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...