# ALPAR piercing clamp Al-Cu 16-120/16-120 double-sided with break-off nut

**URL:** https://aio.lv/en/product--alpar-z2081z--12399046
**Data updated:** 2026-04-27 22:32 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** ALPAR
**Manufacturer code:** Z2081Z
**EAN:** 5900308544495
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alpar-z2081z--12399046

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

ALPAR piercing clamp for Al-Cu conductors, model Z2081Z, rated for cross-sections 16–120 mm² on both sides (16-120/16-120). Double-sided design enables secure electrical connection between aluminum and copper conductors. Features a break-off (shear) nut for reliable torque control during installation. Suitable for power distribution, overhead and service line splices where Al-to-Cu transition and dependable mechanical/electrical contact are required.

## Long description

ALPAR piercing clamp Al-Cu 16-120/16-120 double-sided with break-off nut is a mechanical connector designed to create a reliable electrical and mechanical joint between aluminum and copper conductors. The double-sided configuration accepts conductors with cross-sections from 16 mm² up to 120 mm² on both sides and incorporates a shear (break-off) nut to ensure consistent torque during installation. This clamp is intended for use in power distribution, overhead lines and service connections where a secure Al-to-Cu transition is required.
Advantages
The clamp provides a stable low-resistance electrical connection between aluminum and copper conductors without the need to strip insulation in many cases, reducing installation time. Its double-sided design enables symmetrical connections and straightforward conductor routing. The break-off nut limits applied torque to a preset value, improving installation consistency and reducing the risk of over-tightening that can damage conductors. Constructed from materials suitable for dissimilar metal connections, it helps limit galvanic corrosion when installed according to recommended practices.
Suitable for
Creating Al-to-Cu electrical transitions on overhead and service lines
Power distribution networks where conductor cross-sections range from 16 mm² to 120 mm²
Repair, splice or tap applications requiring a mechanical clamp with defined torque control
Field installations where rapid, repeatable connections are needed
When it may not be suitable
This piercing clamp is not intended for conductors outside the specified cross-section range (below 16 mm² or above 120 mm²) and should not be used where insulation or environmental sealing requirements demand a fully encapsulated connector. It is also not suitable where code or application requires welded, brazed, or permanently insulated joints instead of mechanical clamps.
Key specifications
Conductor compatibility: aluminum to copper
Acceptable conductor cross-section per side: 16–120 mm²
Design: double-sided piercing clamp
Torque control: break-off (shear) nut for preset tightening
Primary use: power distribution, overhead and service lines
How to use
Position the clamp so each conductor lies in its respective channel and align conductors for correct seating. Tighten the shear nut evenly until it breaks off at the specified torque, ensuring the clamp teeth pierce conductor surfaces and establish contact. Verify mechanical retention and electrical continuity after installation. Follow standard safety practices, de-energize circuits when required, and comply with local regulations and utility procedures.
What to consider before purchase
Confirm conductor materials and cross-sections fall within 16–120 mm² for both sides
Verify that a mechanical piercing clamp is acceptable for your application and local regulations
Ensure installation tools and clearance allow safe torque application and shear nut operation
Consider environmental exposure and whether additional sealing or protection is required
Usage recommendations
For reliable long-term performance, install on clean conductors, apply the recommended torque until the break-off nut shears, and inspect connections periodically for signs of corrosion or loosening. Use appropriate personal protective equipment and follow utility guidelines for Al-to-Cu joints.

## FAQ

### How much does the ALPAR piercing clamp Al-Cu 16-120/16-120 Z2081Z cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 16.07.2026 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 ALPAR 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 ALPAR 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/12399046/68681825_large.webp