Phoenix Contact UK 5-HESI Fuse Terminal Block for 5x20/25/30 mm Fuses, Black

The Phoenix Contact UK 5-HESI is a professional-grade fuse terminal block engineered for the secure installation and protection of glass and ceramic tube fuses. Designed for industrial control cabinets and automation systems, this black terminal block supports fuse sizes of 5x20 mm, 5x25 mm, and 5x30 mm. It provides a reliable electrical connection through a robust screw connection method, ensuring circuit integrity in demanding environments. The unit is designed for standard DIN rail mounting, allowing for efficient space management and straightforward maintenance within complex electrical panels.

Advantages

This terminal block offers significant operational benefits, including a safety lever that locks securely in the end position to prevent accidental activation or disconnection. It features a large-surface area for clear labeling, which simplifies identification and maintenance tasks in dense wiring environments. Additionally, the design supports versions with integrated LED indicators, providing immediate visual feedback on the status of the fuse.

Suitable for

• Industrial control cabinets
• Automation and process control systems
• Electrical distribution panels
• Protection of sensitive electronic circuits

This terminal block may not be suitable for high-current applications exceeding 6.3 A or for environments requiring specialized fuse types outside the standard glass or ceramic dimensions. It is also not intended for direct outdoor exposure without a protective enclosure.

Key specifications

• Fuse compatibility: 5x20 mm, 5x25 mm, 5x30 mm
• Connection method: Screw connection
• Cross-section range: 0.2 mm² to 4 mm² (AWG 24 - 12)
• Nominal current: 6.3 A
• Nominal voltage: 800 V
• Width: 8.2 mm
• Mounting type: DIN rail (NS 35/7,5, NS 35/15, NS 32)

To use the Phoenix Contact UK 5-HESI, mount the block onto a compatible DIN rail until it clicks into place. Strip the insulation from your conductors and insert them into the screw terminals, tightening the screws to the specified torque to ensure a secure connection. Insert the appropriate glass or ceramic fuse into the holder and close the safety lever until it locks into the end position. Ensure the circuit is de-energized before performing any installation or fuse replacement.

What to consider before purchase

• Verify the current and voltage requirements of your circuit
• Ensure the DIN rail type in your cabinet is compatible
• Check if your application requires an LED status indicator version
• Confirm the physical space available for the 8.2 mm width

Always ensure that the fuse rating matches the requirements of the protected circuit to prevent damage. Regularly inspect the safety lever and terminal connections during routine maintenance to ensure continued reliability.