4E0021.01-090 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 4E0021.01-090 is part of the 4E0 PanelWare Accessories series and features 12 numeric keys along with 4 user-labeled keys. It has a short stroke key type, 4 yellow LEDs, and a current consumption of 1.5 mA at 24 VDC. This panel accessory measures 96 mm in both height and width with a depth of 35 mm.
Internal Product Review
The 4E0021.01-090 is a B&R Automation PanelWare accessory keypad featuring 12 numeric keys and a short-stroke key type. Four user-labeled keys and four LEDs support clear operator feedback and efficient machine interfacing. Current consumption of 1.5 mA at 24 VDC makes the module an efficient choice for control panel integration.
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Product Description:
The 4E0021.01-090 is a keypad insert designed by B & R Automation for the 4E0 PanelWare Accessories series. The module integrates into operator panels to give machine users a tactile set of numeric and function keys backed by indicator LEDs, supporting straightforward command entry in industrial automation cells. By adding dedicated hardware keys, the accessory reduces reliance on touchscreen navigation and permits quick, gloved-hand operation on packaging, material-handling, or assembly lines. The fixed-key format also suits repetitive numeric entry and simple menu navigation where direct physical input is preferred over nested on-screen controls. Because the keys can be identified by touch, the panel remains practical in fast-paced stations where operators must enter values without shifting attention away from the machine.
Mechanically, the keypad extends 35 mm behind the bezel, allowing shallow mounting in crowded enclosures. Its front face is 96 mm tall, matching standard cutouts used with other B & R panel components, so no adapter plates are required. Each pushbutton uses a short-stroke mechanism, giving rapid actuation with limited travel that helps shorten repeated input cycles. The shallow rear profile also leaves more clearance for wiring and neighboring modules inside the enclosure. Electrically, the board draws only 1.5 mA at 24 VDC, which keeps the load on the controller’s auxiliary supply very low. Integrated status indication uses a yellow LED color that remains easy to see under factory lighting while staying visually distinct from common red and green signal lamps.
The keypad supplies 4 discrete indicator LEDs, each consuming 3 mA when illuminated, so the full LED bank draws 12 mA. The key matrix includes 12 dedicated numeric keys for direct value entry and four additional keys that can be user-labeled to match machine-specific functions. These extra keys can be assigned to common actions such as acknowledgment, reset, or mode selection. The square outline is 96 mm wide, enabling a symmetrical fit beside other instruments on a DIN-standard panel row while keeping cable routing consistent with the series.
