Schneider Electric NEHB442ASB PowerLink AS Control Bus

Schneider Electric's NEHB442ASB PowerLink AS Control Bus is a 24 VDC control bus module designed for use with PowerLink AS panelboards installed in NEHB enclosures. This 42‑circuit control bus supports the PowerLink AS architecture by delivering 24 VDC power and control signals to remotely operated circuit breakers and associated PowerLink electronics within the NEHB panel, enabling centralized control and status reporting through the PowerLink controller network. When installed in a standard NEHB panel, the NEHB442ASB aligns with the interior‑rail mounting used by PowerLink AS, and corresponds to a 42‑control‑circuit configuration that typically requires 54 interior poles in the panel. The NEHB442ASB is part of Schneider Electric’s Square D PowerLink AS family, a dedicated control bus strip that interfaces with the panel’s control electronics while meeting common NEC/UL requirements for panelboard control components. This part number is appropriate for customers upgrading or replacing a legacy PowerLink AS installation where 24 VDC control and centralized control of remotely operated breakers is required, particularly in commercial or industrial lighting and power distribution applications that rely on centralized actuation and monitoring of multiple breakers from a PowerLink controller network.