# Phoenix Contact TB 4-L/LB I Essential 2-Level Terminal Block 4mm² 29A 500V Dark Gray

**URL:** https://aio.lv/en/product--phoenix-contact-3000905--12448347
**Data updated:** 2026-05-18 02:45 (EEST)
**Category:** Power Sockets
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** 3000905
**EAN:** 4046356755412
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-3000905--12448347

## 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 TB 4-L/LB I Essential is a professional 2-level terminal block designed for secure electrical connections. Featuring a 4mm² cross-section, it supports a rated current of 29A and a voltage of 500V. This dark gray terminal block is ideal for space-saving DIN rail mounting in industrial control cabinets and automation systems, ensuring reliable signal and power distribution.

## Long description

The Phoenix Contact TB 4-L/LB I Essential is a professional 2-level terminal block engineered for high-density electrical wiring in industrial environments. This component provides a robust solution for connecting conductors with a cross-section of 4mm², supporting a rated current of 29A and a voltage of 500V. Its compact design allows for efficient use of space within control cabinets, facilitating organized and reliable power and signal distribution on standard DIN rails.
Advantages
This terminal block offers significant space savings due to its double-level configuration, which effectively doubles the wiring density compared to single-level alternatives. The construction utilizes high-quality materials that ensure long-term mechanical stability and electrical integrity under demanding operating conditions. Its design simplifies the installation process, allowing for quick and secure conductor termination, which reduces assembly time in complex automation systems.
Suitable for
Industrial control cabinets
Automation and process control systems
Power distribution panels
Electrical infrastructure projects
This terminal block may not be suitable for applications requiring high-current connections exceeding 29A or for environments where the voltage levels surpass the 500V rating. It is also not intended for use in high-vibration environments without appropriate additional securing measures or in applications requiring specific hazardous area certifications not covered by the standard specifications.
Key specifications
Cross-section capacity: 4mm²
Rated current: 29A
Rated voltage: 500V
Mounting type: DIN rail
Color: Dark gray
Design: 2-level terminal block
To use the Phoenix Contact TB 4-L/LB I Essential, snap the terminal block onto a compatible DIN rail until it clicks securely into place. Strip the insulation from your conductors to the appropriate length and insert them into the terminal points. Ensure that the screws or clamping mechanisms are tightened to the manufacturer's recommended torque to guarantee a secure electrical connection and prevent loosening due to thermal expansion or vibration.
What to consider before purchase
Ensure the DIN rail type is compatible with the terminal block mounting footprint.
Verify that the conductor cross-section matches the 4mm² capacity.
Check that the total current and voltage requirements of your circuit do not exceed the rated limits.
Confirm that the dark gray color meets your organizational or labeling standards.
For optimal performance and safety, always use calibrated tools for tightening connections and ensure that the terminal block is installed in a clean, dry environment protected from excessive moisture and corrosive elements.

## FAQ

### How much does the Phoenix Contact TB 4-L/LB I Essential 2-Level Terminal Block cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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

## Image

https://aio.lv/img/cache/product/12448347/68751337_large.webp