Phoenix Contact UK 5-HESI Fuse Modular Terminal Block

Technical Overview

1-position fuse terminal block for 5x20/25/30mm G-type fuses. Rated 800V/6.3A, operates from -60°C to 110°C. Features screw connection and DIN rail mount.

Key Features

1-position fuse terminal block.
Accommodates G-type cartridge fuses (5x20 mm, 5x25 mm, 5x30 mm).
Screw connection method for reliable wiring.
DIN rail mountable (NS 32, NS 35/7.5, NS 35/15).
Black polyamide (PA) housing.
Provides overcurrent and short-circuit protection.
Large-surface labeling capability for clear identification.
Safety lever locked in end position.
UL recognized component and CSA certified.
Operating temperature range from -60 °C to 110 °C.

Technical Specification Matrix

Parameter	Value
Product Type	Fuse Terminal Block
Number of Positions	1
Nominal Voltage	800 V
Nominal Voltage (as Fuse Terminal Block)	500 V
Nominal Current	6.3 A
Rated Surge Voltage	8 kV
Connection Method	Screw Connection
Wire Cross Section Solid (Min)	0.2 mm²
Wire Cross Section Solid (Max)	4 mm²
Wire Gauge AWG (Min)	24 AWG
Wire Gauge AWG (Max)	12 AWG
Fuse Type	G (Glass / Ceramics)
Fuse Sizes Supported	5 x 20 mm, 5 x 25 mm, 5 x 30 mm
Mounting Type	DIN Rail (NS 32, NS 35/7.5, NS 35/15)
Color	Black
Housing Material	Polyamide (PA)
Flammability Rating	UL 94 V-2
Operating Temperature Range	-60 °C to 110 °C
Stripping Length	8 mm
Tightening Torque	0.6 ... 0.8 Nm
Pollution Degree	3
Overvoltage Category	III
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	7.25 x 0.82 x 5.65

Industrial Applications

1. Overcurrent Protection for Industrial Control Panels

This fuse terminal block is ideal for protecting critical control circuits within industrial automation cabinets. Its DIN rail mounting and screw connection ensure secure and organized wiring. The hinged disconnect lever allows for quick and safe fuse replacement during maintenance, minimizing downtime.

Problem Solved

Prevents damage to sensitive control components from overcurrents and short circuits, while enabling efficient fault isolation and fuse replacement without disrupting the entire system.

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2. HVAC Equipment Circuit Protection

In HVAC systems, various motors, sensors, and control boards require reliable protection. This terminal block, with its 6.3A rating and capability to operate in temperatures from -60°C to 110°C, provides robust circuit protection for components installed in environments with temperature fluctuations, ensuring system longevity.

Problem Solved

Protects HVAC system electronics and motors from electrical faults, enhancing system reliability and preventing costly equipment failures, especially in varied temperature conditions.

HVACmotor protectionsensor protectioncircuit protection-60°C to 110°C6.3Atemperature resilience

3. Fuse Integration in Machine Safety Circuits

For safety-critical machine applications, individual circuit protection is paramount. This fuse terminal block can be integrated into safety circuits to protect individual components like emergency stop buttons, safety relays, or interlock switches from overcurrents, adhering to safety standards and preventing hazards. Its 800V rating allows it to be used in various industrial voltage schemes.

Problem Solved

Provides localized overcurrent protection within machine safety circuits, ensuring the integrity and reliable operation of safety components, and contributing to overall machine safety.

Machine safetysafety circuitemergency stopsafety relayinterlock switchovercurrent800Vindustrial safety