As low-voltage (LV) power distribution networks keep expanding globally, utility operators and EPC contractors demand cable tapping hardware that combines mechanical safety, stable electrical performance and simple field installation.
The ZOP-57 insulation piercing connector has become a preferred branch-connection option for insulated overhead conductors, removing the need for cable stripping and lowering human-error risks during site work.
Engineered for secure branch connections within low-voltage ABC (aerial bundled cable) systems, it is widely applied in street lighting, overhead power lines and solar plant installations. Produced from UV-resistant polymer, tin-coated aluminum contact plates and stainless-steel fasteners, and validated through rigorous in-house laboratory testing, it delivers dependable field performance.
The ZOP-57 is manufactured by Jera Line as a mechanical insulation piercing connector built for creating branch connections on insulated conductors in low-voltage overhead power networks, covering main cables of 25–185 mm² and tap cables of 25–95 mm², for networks up to 1 kV. It adopts torque-controlled shear-head technology: the shear-head nut breaks off automatically once the preset installation torque is reached.
This mechanism creates consistent contact pressure on the cable conductors without any stripping or compression equipment. Installers only need to tighten the shear-head bolt with a standard hex key until the nut breaks off, completing each tapping point quickly without special power tools.
The tin-coated aluminum contact teeth pierce the cable insulation automatically to build a stable bimetal connection with both copper and aluminium conductors. The connector body and seal are produced by UV-resistant two-component insert molding of fiberglass-reinforced composite polymer and elastomer, with stainless-steel washers, a stainless-steel bolt and a UV-resistant rubber end cap ensuring long-term waterproof and anti-ageing performance. This design streamlines field work and reduces installation mistakes caused by improper tightening force.
1) Fast and convenient installation — the shear-head nut is tightened with a hex key and breaks off automatically, giving the installer an unambiguous signal of correct torque
2) No cable stripping — the tin-coated aluminum teeth pierce the insulation automatically during tightening
3) Wide cable range — main line 25–185 mm² / tap line 25–95 mm², covering the common conductor sizes used in LV ABC trunk and branch networks
4) Bimetal compatibility — tin-covered aluminum contact plates work reliably with both copper and aluminium conductors
5) Full standard compliance — NF C 33-020 and EN 50483-4 type tests made by an independent third-party laboratory
6) Stainless-steel bolt and washer prevent rust and corrosion, with UV-resistant polymer body and rubber end cap for long-term outdoor service
7) Direct factory supply from China with competitive pricing
The torque-controlled insulation piercing connector ZOP-57 is designed for tapping insulated conductors during low-voltage line construction, covering main cables of 25–185 mm² and tap cables of 25–95 mm². It connects insulated conductors in overhead power lines, ensuring reliable and secure electrical connections. Main applications:
The ZOP-57 insulation piercing connector delivers safe, labour-saving and cost-effective tapping solutions for low-voltage power networks, making it a practical hardware choice for utility-grade projects.
Benefits of partnering with Jera Line include:
Founded in 2012, Yuyao Jera Line is a specialist manufacturer for overhead and underground MV-LV cable accessories. Most products are fully manufactured in-house at our Ningbo, China facility, removing intermediate traders and offering competitive ex-works pricing for global buyers. Standard models maintain stock for reliable shipment schedules
To each batch order for IPC connector ZOP-57 completes routine electrical and environmental tests inside our in-house laboratory, including dielectric voltage test in water and UV/temperature ageing tests, ensuring stable performance for long-term outdoor operation.
To meet market requirements, Jera Line offers OEM and ODM services, and provides maximum support within our capabilities for customized connector projects.
We welcome small trial orders for new customers to test product quality before large-volume project procurement.
Cooperating with Jera Line as your insulation piercing connector supplier means selecting verified quality, durable field-proven performance and a reliable long-term business partnership.
Every IPC connector ZOP-57 order is strictly tested in-house per request, ensuring stable electrical contact, consistent shear-torque accuracy and outstanding mechanical durability for long-term outdoor operation. With in-house quality inspection and optimized production processes, Jera Line eliminates hidden risks such as poor contact and premature ageing, delivering utility-grade reliability for all low-voltage cable tapping projects.
If you are interested in the 25-150/25-95 insulation piercing connector or other overhead line accessories, please feel free to get in touch with our sales team. We provide complete technical datasheets, free pre-order product samples, customized packaging solutions and formal project quotations to support your procurement and field verification.
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