# Phoenix Contact ST 4-HESI (5x20) Spring-Cage Fuse Terminal Block, 2-Conductor, Black

**URL:** https://aio.lv/en/product--phoenix-contact-3036369--3692274
**Data updated:** 2026-05-18 02:38 (EEST)
**Category:** Power Sockets
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** 3036369
**EAN:** 2050000261473
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-3036369--3692274

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Phoenix Contact ST 4-HESI (5x20) is a professional 2-conductor spring-cage fuse terminal block designed for 5x20 mm glass fuses. Featuring a robust black housing, it supports wire cross-sections from 0.08 to 6 mm². This terminal block ensures reliable electrical connections and circuit protection in industrial control cabinets and automation systems, providing efficient installation and maintenance.

## Long description

The Phoenix Contact ST 4-HESI (5x20) is a professional 2-conductor spring-cage fuse terminal block engineered for the secure integration of 5x20 mm glass cartridge fuses. Housed in a durable black casing, this terminal block is designed for mounting on standard NS 35 DIN rails, making it an essential component for industrial control cabinets and automation systems. It supports a wide range of wire cross-sections from 0.08 to 6 mm², ensuring versatility and reliable electrical connectivity in demanding environments.
Advantages
The terminal block features an extremely compact design that optimizes space within crowded control panels, allowing for higher component density. The integrated spring-cage connection technology facilitates rapid and vibration-resistant wiring, significantly reducing installation time. Furthermore, the inclusion of test connections on both sides of the safety lever allows for convenient and safe circuit diagnostics without the need to disconnect the wiring.
Suitable for
Industrial automation control panels
Protection of control circuits
Applications requiring 5x20 mm glass fuse integration
Systems where space-saving DIN rail mounting is required
When it may not be suitable
This terminal block is specifically designed for 5x20 mm glass fuses and is not compatible with other fuse sizes or types. It is intended for use in controlled industrial environments and may not be suitable for applications exposed to extreme outdoor elements without additional protective enclosures.
Key specifications
Connection type: Spring-cage
Fuse size: 5x20 mm
Conductor cross-section: 0.08 to 6 mm²
Mounting type: NS 35 DIN rail
Number of conductors: 2
Color: Black
How to use
To install, snap the terminal block onto a standard NS 35 DIN rail. Insert your wires into the spring-cage terminals by pressing the actuation point to open the clamp, then release to secure the connection. To install or replace a fuse, lift the safety lever, insert the 5x20 mm glass fuse into the holder, and close the lever firmly to complete the circuit.
What to consider before purchase
Verify that your fuse requirements match the 5x20 mm standard.
Ensure your wire gauge falls within the 0.08 to 6 mm² range.
Confirm that your mounting rail is compatible with the NS 35 standard.
Usage recommendations
Always ensure the power is disconnected before installing or replacing fuses to prevent electrical shock. Regularly inspect the safety lever and spring-cage connections during routine maintenance to ensure optimal performance and safety.

## Specifications

| Feature | Value |
|---|---|
| Current | 6.3 A |

### Features

| Feature | Value |
|---|---|
| Number of poles | 2 |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |

## FAQ

### How much does the Phoenix Contact ST 4-HESI (5x20) Fuse Terminal Block cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 109 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All PHOENIX-CONTACT products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized PHOENIX-CONTACT service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/3692274/58529736_large.webp