# Heat-Shrink Solder Seal Butt Connectors Onnline TTS-60 for 4.0–6.0 mm² wires

**URL:** https://aio.lv/en/product--onnline-tts-60--11939242
**Data updated:** 2026-03-10 11:40 (EET)
**Category:** Electronics Accessories
**Manufacturer:** Onnline
**Manufacturer code:** TTS-60
**EAN:** 8595055703225
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Onnline TTS-60 are heat-shrink butt connectors with internal adhesive and a solder ring, designed for electrical splices of 4.0–6.0 mm² conductors. The tubing provides insulation and moisture protection after shrinkage; the solder ring ensures a reliable electrical joint. Suitable for automotive, marine, and general wiring repairs and installations.

## Long description

Onnline TTS-60 heat-shrink solder seal butt connectors are designed for creating sealed, mechanically and electrically reliable splices for 4.0–6.0 mm² conductors. Each connector combines a pre-placed solder ring with a heat-activated adhesive-lined polyolefin tube that shrinks to form insulation and moisture protection. The construction is intended to streamline repairs and installations where a compact, protected connection is required.
Advantages
The integrated solder ring provides a consistent, low-resistance electrical joint while the heat-shrink tubing with internal adhesive seals against moisture and contaminants. These connectors reduce the need for separate crimping and sealing steps, offering a single-step heat application to complete the splice. Their size and design make them suitable for confined spaces and for applications where a durable, vibration-resistant joint is needed.
Suitable for
 Automotive wiring repairs and harness splices
 Marine and outdoor electrical connections requiring moisture protection
 General electrical installations and maintenance for 4.0–6.0 mm² conductors
 Repairing cables in machinery and equipment exposed to vibration
Key specifications
 Compatible conductor cross-section: 4.0–6.0 mm²
 Connector type: butt splice with solder ring
 Insulation material: heat-shrink polyolefin tubing with internal adhesive
 Sealing: adhesive-lined tubing provides moisture and contaminant protection after shrinkage
 Joint formation: solder ring ensures metallurgical connection when heated
How to use
Strip the wire ends to the recommended length, insert each conductor into the connector so the conductor cores meet over the solder ring, and apply heat evenly around the connector using a heat gun or torch. Heat until the solder ring flows and the tubing visibly shrinks and the internal adhesive flows to form a continuous seal. Allow the joint to cool undisturbed before applying mechanical load or electrical power.
Usage recommendations
Use a regulated heat source and maintain even heating to avoid overheating insulation or nearby components. For best results, clean conductor strands before insertion and verify the conductor cross-section is within the 4.0–6.0 mm² range. When working in marine or high-humidity environments, ensure full adhesive flow to achieve proper moisture sealing.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 Onnline 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 Onnline 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

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