SYG SYS Device Clamp

SYG (Single-wire) / SYS (Double-wire) Series Device Clamps are brazed copper-aluminium transition compression connectors, designed for connecting aluminium overhead lines (LGJ/ACSR) to copper equipment terminals (transformers, switchgears, breakers) in substations and industrial power systems. The copper part is tin-plated for anti-corrosion; the aluminium barrel ensures lightweight and high conductivity. Available in 0°(A), 30°(B), 90°(C) angles for flexible installation.

Key Features

• ✅ Copper-Aluminium Brazed Transition: No bi-metal corrosion, low contact resistance

• ✅ Tin-Plated Copper Pad: Anti-oxidation, anti-corrosion, easy bolted connection

• ✅ High-Conductivity Aluminium Barrel: Lightweight, excellent electrical performance

• ✅ Compression Crimp Design: Fast installation, reliable grip, high mechanical strength

• ✅ Three Standard Angles: 0°(A), 30°(B), 90°(C) for different mounting needs

• ✅ Single/Double Wire Options: SYG (1-wire), SYS (2-wire) for diverse conductor combinations

• ✅ Wide Size Range: 35–630 mm² for aluminium/steel-reinforced conductors

Technical Specifications

• Material: Aluminium (tube) Tin-plated Copper (pad), brazed connection

• Voltage Rating: ≤ 35kV (Medium Voltage)

• Temperature Range: -40°C to 125°C

• Standard: GB/T 2314, DL/T 759, IEC 61238

• Conductor Type: LGJ/ACSR (steel-reinforced aluminium), solid/stranded aluminium

• Installation: Hydraulic crimp (aluminium tube); bolted (copper pad)

• Finish: Aluminium (natural), Copper (tin-plated)

Applications

• Transformer, circuit breaker, disconnect switch terminals

• Substation busbar & overhead line transition connections

• LV/MV switchgear, distribution panels, control cabinets

• Industrial power plants, renewable energy (solar/wind) systems

• High-current equipment connections in outdoor/harsh environments

Product Specifications（Shopify Specs ）

• Product Name: SYG/SYS Copper-Aluminium Transition Device Clamp

• Model: SYG-35/50/70/95/120/185/240/300/400/630 (A/B/C); SYS series

• Material: Aluminium Alloy Tin-plated Copper

• Conductor Range: 35–630 mm² (LGJ/ACSR/Aluminium Cables)

• Voltage Rating: ≤ 35kV

• Standard: GB/T 2314, DL/T 759

• Angle: 0°(A), 30°(B), 90°(C)

• Wire Type: Single (SYG) / Double (SYS)

• Application: Transformer, Switchgear, Substation, Power Distribution

Tags / Keywords

SYG device clamp, SYS double-wire clamp, copper aluminium transition terminal, compression type line clamp, transformer cable connector, substation equipment clamp, tin-plated copper terminal, LGJ ACSR connector, power line hardware, SYG series fitting

Collection / Category

• Main Category: Power Line Hardware

• Subcategory: Equipment Connectors & Terminals

• Optional: Copper-Aluminium Fittings, Substation Hardware