Product Introduction

DTL-2-70 Conductor Copper-Aluminum Terminal

Suitable for conductor cross-sections of 70 mm², specifically designed for transition connections in 10 kV urban distribution backbone equipment, suitable for connecting feeder terminals in community distribution rooms and medium-sized prefabricated substations. Features a reinforced, thickened copper-aluminium composite body with ample current-carrying capacity; a universal copper-aluminium terminal block for medium-to-heavy-duty overhead lines.

Technical Parameters

Model	Main dimensions
	Φ	D	d	L	L1
DTL-2-16	13	Φ16	Φ6	90	42
DTL-2-25	13	Φ16	Φ7	90	42
DTL-2-35	13	Φ16	Φ8.5	90	42
DTL-2-50	13	Φ20	Φ9.6	90	43
DTL-2-70	13	Φ20	Φ11.5	90	43
DTL-2-95	13	Φ20	Φ13.5	90	43
DTL-2-120	13	Φ25	Φ15	115	60
DTL-2-150	13	Φ25	Φ16.6	115	60
DTL-2-185	13	Φ32	Φ18.5	122	60
DTL-2-240	13	Φ32	Φ21	122	60
DTL-2-300/300	13	Φ34	Φ23	125	62
DTL-2-300/300D	13	Φ34	Φ23	125	62
DTL-2-400/400	13	Φ38	Φ26	159	70
DTL-2-400/400D	19	Φ40	Φ26	159	70
DTL-2-500	19	Φ47	Φ29	167	75
DTL-2-630	21	Φ54	Φ34	200	80

Detailed technical parameters

DTL-2-70 Conductor Copper-Aluminum Terminal

Model DTL-2-70

Mounting hole diameter Φ=13mm, sleeve outer diameter D=Φ20mm, sleeve inner diameter d=Φ11.5mm, total length L=90mm, sleeve length L1=43mm

Product Features

Features of DTL-2-70 Conductor Copper-Aluminum Terminal

Material: The tin-plating layer utilises high-purity electrolytic tin raw material, resulting in a dense coating with strong adhesion that provides long-term protection against oxidation and blackening of the copper terminals.

Process: The surface is processed using a bright tin-plating production line, ensuring uniform coating thickness and eliminating process defects such as missed plating, pinholes or flaking.

Corrosion Protection: Following tin plating, a sealing and passivation process is applied to enhance resistance to acids, alkalis and industrial fumes, thereby extending the service life of outdoor equipment.

Standards: Strictly complies with national standards for power line fittings (GB/T 2314, GB/T 2315, DL/T 693), covering all mainstream aluminium stranded wire specifications. Utilising standardised hydraulic crimping methods, these terminals are widely used in rural grid upgrades, urban residential distribution systems, and low-voltage electrical installation projects in industrial facilities.