Allen-Bradley 2711-NL1 PanelView 550 LED Backlight

Allen-Bradley 2711-NL1 PanelView 550 LED Backlight is a replacement backlight assembly for PanelView 550 HMIs, including models such as 2711-K5A8 and 2711-B5A8. It provides LED-based illumination to brighten the PV550 LCD and restore display clarity when the original backlight dims or fails. The NL1 is designed for PanelView 550 terminals (Series G and below) and is commonly sold as the dedicated backlight replacement for PV550, with typical lifetimes around 20,000 hours and a drive specification often listed as about 1 A at 5 V (roughly 5 W). Replacement should follow Rockwell’s PV550 backlight installation guidance to ensure proper seating and electrical connections.