PHOENIX CONTACT ST4-HESI (6,3×32) 3036409

Phoenix Contact Fuse Terminal Block for DIN Rail Mounting

Description

The Phoenix Contact ST4-HESI is a high-quality fuse modular terminal block designed for protecting circuits within industrial control panels. It accommodates G / 6,3 x 32 fuses and features the ST spring-cage connection technology for fast and reliable wiring. This component is ideal for applications requiring dependable overcurrent protection in a space-saving format.

Specifications

• Manufacturer: Phoenix Contact
• Model: ST4-HESI (6,3×32)
• Part Number: 3036409
• Nominal Voltage (IEC): 400 V
• Max. Load Current (IEC): 6.3 A
• Connection Method: Spring-cage connection
• Conductor Cross Section: 0.08 mm2 to 6 mm2
• AWG Range: 28 to 10
• Fuse Type: G / 6.3 x 32 mm
• Mounting Type: NS 35/7,5, NS 35/15 DIN rail

Label Info

• 400V 4mm2
• 300V 10A (UL)
• US 24-10 AWG

Application

This terminal block is commonly used in automation technology, machine building, and process control systems to provide individual circuit protection. The lever design allows for easy and safe fuse replacement.

Country of Origin

Made in Germany.

CO2 Impact

Opting for this pre-owned component avoids approximately 0.64 kg of CO2 emissions compared to manufacturing a new one, contributing to a more sustainable industrial practice.

Availability

In stock. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the maximum current rating for the ST4-HESI terminal block?

The block itself is rated for 10A (UL/CSA), but the maximum load current is limited to 6.3A (IEC) due to the fuse type it is designed for. The actual circuit protection level is determined by the specific 6.3x32mm fuse installed.

Can this terminal block be used for both AC and DC applications?

Yes, the ST4-HESI is suitable for both AC and DC circuits. However, the maximum voltage and interrupting capacity will depend on the specifications of the fuse being used, which can differ between AC and DC ratings.

What is the benefit of the spring-cage connection (ST series) over a traditional screw connection?

The spring-cage connection provides a fast, tool-free installation. It also ensures a consistent and reliable connection that is highly resistant to vibration and thermal cycling, which can cause screw terminals to loosen over time.

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Last Update: Friday, March 13, 2026