Phoenix Contact UK 5-HESILA 250 Fuse Terminal Block

Technical Overview

DIN rail fuse terminal block with 800V, 6.3A, LED indicator for 5x20mm G-type fuses. Screw connection for 0.2-4mm² wire. Dimensions: 8.2x72.5x56.5mm.

Key Features

Hinged disconnect lever with limit stop for easy fuse insertion and removal.
Equipped with an LED indicator for quick identification of blown fuses.
Features large-surface labeling/marking options for clear circuit identification.
Safety lever designed to lock securely in the end position.
Utilizes reliable screw connection for secure and robust wiring.
Versatile mounting on NS 35/7.5, NS 35/15, and NS 32 DIN rails.
Accepts standard G-type cartridge fuses (5x20, 5x25, 5x30 mm).
Black coloration for standard industrial panel aesthetics.

Technical Specification Matrix

Parameter	Value
Nominal Voltage (Fuse Terminal Block)	800 V
Rated Operating Voltage (LED Indicator)	250 V
Nominal Current	6.3 A
Conductor Cross Section (min)	0.2 mm²
Conductor Cross Section (max)	4 mm²
Wire Gauge (AWG)	26 - 10 AWG
Fuse Type	G (5x20, 5x25, 5x30 mm)
Number of Levels	1
Number of Connections	2
Connection Method	Screw Connection
Mounting Type	DIN Rail (NS 35/7.5, NS 35/15, NS 32)
Rated Impulse Voltage	8 kV
Degree of Pollution	3
Overvoltage Category	III
Insulating Material	PA
Flammability Rating (UL 94)	V0
Ambient Temperature (Operation)	-60 °C to 110 °C
LED Voltage Range	110 V AC/DC ... 250 V AC/DC
LED Current Range	0.5 mA ... 1 mA
Color	Black
Approvals	CSA, UL, cUL Recognized, cULus Recognized, DNV GL, EAC
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	7.25 x 0.82 x 5.65

Industrial Applications

1. Industrial Control Panel Protection

This fuse terminal block effectively protects critical control circuits within manufacturing equipment from overcurrents. Its 6.3A nominal current and fuse functionality safeguard sensitive components, while the DIN rail mounting ensures easy integration into existing panels. The integrated LED indicator rapidly identifies blown fuses, minimizing downtime in production lines.

Problem Solved

Prevents damage to expensive industrial control components from overcurrents and provides rapid visual fault indication to reduce machine downtime.

Overcurrent ProtectionDIN Rail Mounting6.3A800VLED IndicationControl Circuits

2. Building Automation System Power Distribution

The UK 5-HESILA 250 is ideal for providing reliable overcurrent protection to power supplies in building automation systems, including HVAC, lighting, and security. Its compact 8.2mm width allows for high-density wiring in crowded control cabinets, and the 250V LED indicator helps maintenance personnel quickly locate and replace faulty fuses without extensive troubleshooting or specialized tools.

Problem Solved

Secures power distribution for critical building infrastructure and simplifies maintenance by providing clear visual fault detection for fuse failures.

HVACLighting ControlSecurity SystemsCompact DesignLED Indicator250V

3. IT/Telecommunication Rack Power Safeguarding

This fuse terminal block can be deployed in Power Distribution Units (PDUs) within IT and telecommunication racks to safeguard individual power outlets or low-voltage circuits. The 800V nominal voltage provides robust protection for sensitive network equipment, and the secure screw connections ensure reliable contact, even in environments prone to vibration, thereby maintaining continuous operation.

Problem Solved

Protects sensitive IT and telecommunication equipment from electrical surges and overcurrents, ensuring stable power delivery and reducing service interruptions.

PDUIT InfrastructureTelecommunications800VScrew ConnectionVibration Resistance