Square D SD-9442 - 60A, 480V, Fusible Bus Plug

When your facility depends on stable, protected power distribution, the Square D SD-9442 Fusible Bus Plug is built to perform under demanding industrial and commercial conditions. This 60A, 480V unit is purpose-built to integrate with busway and panelboard systems, delivering reliable, plug-in protection where you need it most.

Key advantages

• 60A at 480V—orchestrates common industrial loads with a precise, reliable current and voltage rating designed for robust distribution networks.
• Fusible protection—built-in fusing enables rapid fault isolation, helping safeguard downstream equipment and supporting quicker maintenance windows.
• Designed for Square D busway and panelboard configurations—provides seamless compatibility for upgrades, retrofits, and replacements within existing electrical infrastructures.
• Facilitates maintenance and retrofit projects—a compatible, hard-to-find bus plug that keeps disruption to a minimum during servicing or system upgrades.

Typical use cases

• Industrial plants updating or expanding 480V distribution networks
• Commercial facilities refreshing electrical infrastructure to accommodate new equipment
• Retrofit projects where a compatible SD-9442 or equivalent bus plug is required to complete the installation
• Maintenance and repair scenarios that demand a reliable, ready-to-install fusible bus plug

Who benefits from this fusible bus plug

• Electrical maintenance teams and plant engineers responsible for reliable power distribution
• Electrical contractors performing upgrades or retrofits in existing facilities
• Facilities managers seeking dependable components with long-term availability for critical systems

Specifications at a glance

• Brand: Square D
• Model: SD-9442
• Type: Fusible Bus Plug
• Amperage: 60A
• Voltage Rating: 480V
• Application: Busway and panelboard power distribution systems
• Typical Use: Industrial plants, commercial facilities, process equipment, and retrofit projects

Practical guidance for deployment

Before installation, verify that the bus plug is compatible with your specific Square D busway and panelboard configuration and that the amperage, voltage, and fusible link type match your system requirements. Use this plug to minimize downtime during preventive maintenance, upgrades, or when upgrading to more capable distribution layouts. For best results, follow applicable safety and installation guidelines to ensure a secure, compliant setup.