ABB JSHD4-2-AD-A 2TLA019995R0500 is an IP65 three-position enabling device with LED indication, front and top auxiliary push buttons, an 8-pole M12 connection and an anti-tamper PCB for controlled machine operation during maintenance, programming and commissioning.
The ABB JSHD4-2-AD-A 2TLA019995R0500 is an ergonomic three-position enabling device designed for safe machine intervention during troubleshooting, programming, test running, commissioning and maintenance. Part of the ABB Jokab Safety JSHD4 range, it allows controlled machine operation only while the operator deliberately holds the enabling actuator in its middle position.
The JSHD4-2-AD-A combines the three-position enabling function with integrated LED indication, a front push button and a top push button. Its AD bottom section provides an 8-pole M12 connection, while the -A designation identifies the version fitted with an anti-tamper PCB for enhanced protection against improper manipulation of the enabling function.
Designed for safety applications up to Category 4 and Performance Level e (PL e) when correctly integrated, the JSHD4-2-AD-A provides a durable handheld solution for machinery where operators need controlled access to hazardous areas. The enclosure offers IP65 protection, while the three-position actuator requires approximately 15 N to reach the enabled position and approximately 45 N to reach the fully depressed OFF position.
The ABB JSHD4-2-AD-A uses a three-position operating principle that enables controlled machine movement only while the operator intentionally holds the actuator in its middle position. If the operator releases the device or reacts to a hazardous situation by squeezing it completely, the enabling contacts return to their safe state and the associated safety system can stop hazardous machine functions.
In addition to the core enabling function, this version incorporates green and red status LEDs plus front and top auxiliary push buttons, allowing functions such as machine start, jog, reset or other control commands to be incorporated into the handheld device according to the machine design. The integrated anti-tamper PCB provides additional protection against attempts to defeat the three-position safety function, while the 8-pole M12 connector simplifies connection and replacement.
| Manufacturer | ABB |
|---|---|
| Product family | ABB Jokab Safety |
| Series | JSHD4 |
| Model | JSHD4-2-AD-A |
| Manufacturer part number | 2TLA019995R0500 |
| Product type | Three-position enabling device |
| Application | Machine enabling / hold-to-run safety control |
| Operating positions | Released / enabled / fully depressed |
| Three-position contact rating | Maximum 30 V DC, 20 mA per channel |
| Minimum three-position contact load | 10 V DC, 8 mA |
| Auxiliary push-button rating | Maximum 500 mA |
| Auxiliary controls | Front push button and top push button |
| Status indication | Green and red LEDs |
| Connection | M12, 8 poles |
| Anti-tamper protection | Integrated anti-tamper PCB |
| Operating force to enabled position | Approximately 15 N |
| Operating force to fully depressed OFF position | Approximately 45 N |
| Auxiliary push-button operating force | Approximately 2.5 N |
| Protection rating | IP65 |
| Operating temperature | -10 to +50 °C |
| Handle material | Polyamide / Noryl |
| Safety category | Up to Category 4 |
| Performance Level | Up to PL e |
| B10d, released to middle position | 2,000,000 operations |
| B10d, middle to bottom position | 968,000 operations |
| Product net width | 34 mm |
| Product net height | 117 mm |
| Product net depth | 50 mm |
| Product net weight | 0.315 kg |
| Country of origin | Sweden |
| EAN | 7350024453393 |
The ABB JSHD4-2-AD-A is a three-position enabling device designed for tasks such as troubleshooting, robot programming, commissioning, test running and maintenance where controlled machine operation is required while an operator is close to hazardous equipment.
The enabling function is inactive when the actuator is released, active while it is deliberately held in the middle position and inactive again if the operator fully depresses the actuator.
The AD version is fitted with an 8-pole M12 connector, providing a convenient detachable connection between the enabling device and the machine safety system.
Yes. The JSHD4-2 top section includes both a front push button and a top push button, allowing auxiliary machine-control functions to be incorporated into the handheld device.
Yes. The device includes green and red LEDs that can provide visual indication associated with the status of the three-position enabling function.
The -A designation identifies the version with an anti-tamper PCB, which is designed to provide additional protection against improper manipulation or defeating of the enabling function.
The JSHD4 enabling device has an IP65 protection rating, making it suitable for industrial environments where protection against dust and water jets is required.
When correctly integrated into an appropriately designed and validated machine safety system, the JSHD4 can support applications up to Category 4 and Performance Level e (PL e).
Approximately 15 N is required to reach the enabled middle position, while approximately 45 N is required to move the actuator into the fully depressed OFF position.
ABB Jokab Safety JSHD4 enabling devices provide ergonomic three-position safety control for troubleshooting, commissioning and programming, with the JSHD4-2-AD-A adding auxiliary push buttons, LED indication, an 8-pole M12 connector and anti-tamper protection for demanding machinery safety applications.
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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...