ABB Jokab Safety JSHD4-2 Jokab Safety Handle Unit

ABB Jokab Safety JSHD4-2 Jokab Safety Handle Unit is the top part of the JSHD4 three‑position safety enabling switch, designed to pair with compatible bottom parts (AB, AD, AH, AJ, AK, or AL) to form a complete safety enabling device for machine control. The JSHD4-2 top part includes LEDs and front and top pushbuttons (top part code 2TLA020006R2200), and is rated IP65 for dust and water protection, suitable for demanding industrial environments. Made with a handle of polyamide and Noryl, it operates from −10 to +50 °C and provides per‑channel electrical limits of up to +30 VDC and 20 mA (minimum +10 VDC, 8 mA), with an extra button capable of up to 500 mA. The unit is built for rugged duty, offering about 1,000,000 mechanical cycles to the middle position, and B10d life ratings around 2,000,000 cycles to the middle and 968,000 cycles to the bottom position. It weighs approximately 0.2 kg without cable, and an anti‑tamper PCB variant is available (suffix -A) that detects if the handle is held in the middle position. Typical applications include safety enabling for automated machinery where a certified, modular top unit is paired with a bottom part to form a complete safety interlock, enabling controlled machine start only when the proper dual‑input conditions are met.