Eaton | TAP321H | Fusible Bus Plug | 30A | 3-Pole | 240V

Eaton TAP321H Fusible Bus Plug is a purpose-built protection accessory for electrical distribution systems, engineered for maintenance, retrofit, and replacement when you need exact specifications matched to your panel. This 30A, 3-pole, 240V fusible bus plug delivers reliable fault isolation and a clean, quick swap-in solution to keep your power running smoothly.

Key specifications

• Amperage: 30A
• Poles: 3-Pole
• Voltage: 240V
• Part Number: TAP321H
• Applications: maintenance, retrofit, and replacement where matching specs are required

Why this fusible bus plug stands out

This TAP321H unit is designed to integrate seamlessly with Eaton’s protection strategy, ensuring consistent protection across all three phases in a 240V system. Its 30A rating targets circuits that demand precise overcurrent protection, while the 3-pole configuration guarantees synchronized switching and isolation—reducing the risk of phase imbalance and unnecessary trips during service or upgrades. The result is faster maintenance windows, safer fault handling, and dependable performance when you’re upgrading or restoring protection in your panel.

Who should consider the TAP321H

Ideal for facilities performing regular equipment maintenance, retrofitting older panels to current protection standards, or replacing worn fusible bus plugs with an exact spec match. If you’re restoring a system to its original protection topology or aligning with Eaton’s protective components, TAP321H is the go-to part number for compatibility and reliability.

Important ordering and compatibility notes

Before purchasing, confirm fit and ratings to ensure a proper match with your equipment. The TAP321H part number is the best reference for compatibility—use it to verify that the plug aligns with your panel’s design, amperage, voltage, and pole configuration. If you’re replacing a similar unit, compare the existing part number, current rating, voltage, and pole count to TAP321H to guarantee a seamless installation and continued protection.