Overview
The double cable gland is a specialized fitting designed to securely attach and seal two cables entering an electrical enclosure or device. It serves as a critical component in cable management systems, particularly in industrial settings where environmental factors like moisture, dust, or vibrations are concerns. Unlike single-entry glands, the double-cable variant allows for the simultaneous termination of two cables while maintaining a sealed barrier. This design is favored in applications requiring compact installations or redundant connections, such as control panels, machinery, and outdoor electrical systems.
Structure and Working Principle
A double cable gland typically consists of a threaded body, two compression seals (often made of rubber or thermoplastic), and locking nuts. The body material varies based on application requirements—brass for general use, stainless steel for corrosive environments, or nylon for cost-sensitive projects. The working principle involves threading the gland into a pre-drilled enclosure hole, inserting cables through the seals, and tightening the assembly to compress the seals around the cables. This creates a mechanical grip (strain relief) and an environmental seal. Some advanced models include additional features like EMC shielding or explosion-proof certifications for hazardous areas.
Key Features
Dual-entry capability is the standout feature, enabling efficient cable routing while conserving enclosure space. High-quality glands achieve IP68 or IP69K ratings, indicating full protection against dust and prolonged water immersion—critical for marine, food processing, or wastewater treatment applications. Corrosion-resistant materials extend service life in harsh environments. For example, 316 stainless steel glands resist saltwater exposure, while nylon glands avoid galvanic corrosion in mixed-metal installations. Many designs also offer 360° cable clamping to prevent rotation and maintain seal integrity under vibration or cable movement.
Application Areas
Industrial automation systems heavily utilize double cable glands in control panels for motors, sensors, and PLCs. They ensure reliable connections in manufacturing plants where cables face constant mechanical stress or exposure to coolants/oils. Renewable energy installations, such as solar farms or wind turbines, employ these glands to protect cabling from weather extremes. Other key sectors include oil and gas (explosion-proof variants), transportation (vibration resistance), and telecommunications (EMI shielding models). Their versatility also makes them suitable for commercial building management systems.
Maintenance and Precautions
Regular inspections should check for seal degradation, especially in UV-exposed or high-temperature environments. Silicone-based lubricants can prolong seal life but avoid petroleum-based products that may degrade rubber components. During installation, avoid over-tightening, which can deform cables or crack enclosure threads. Always verify the gland’s specified cable diameter range—using undersized cables compromises sealing, while oversized cables may damage the gland or conductors. In corrosive atmospheres, apply anti-seize compounds to threaded parts for easier maintenance.
B2B Procurement Guide
Bulk purchases typically offer 10–30% cost savings, with MOQs starting at 100–500 units depending on material and size. Leading manufacturers include Hubbell, Eaton, and Lapp Group, while OEM options are available from specialized Asian suppliers. Key specifications to confirm include: thread standard (Metric PG, NPT, or G), temperature range (-40°C to 100°C for standard models), and certifications (ATEX for hazardous areas, UL for North America). For custom requirements, some suppliers offer branding, non-standard sizes, or material blends. Sample testing is recommended to verify sealing performance with actual cables.
Related Manufacturers
- 主营：[]
- 主营：开口鼻、铜鼻子、连接块、铜端子、电缆对、端子排、电缆鼻、压接端子、纯铝端子、冲压端子、连接端子、电缆接头、接线台、接线头、配电箱、对接管、铜接线、接头管、接线柱、接线鼻、接线耳、连接管、铜铝鼻、过渡接头、电气连接
- 主营：带电作业穿刺线夹、铝合金间隔棒、耐张线夹、电缆固定夹、高压电缆抱箍、高压电缆固定夹、双孔螺栓型力矩端子、变电金具、线路金具、爪型平板线夹、管母线伸缩线夹、T型线夹、母线固定金具、管形母线T型线夹、防松型耐张线夹、四分裂阻尼间隔棒、防舞动相间间隔棒、间隔棒夹头、防震锤、带电作业引流线夹、JS型间隔棒、耐张楔形安全后备线夹、螺栓型挂钩引流线夹
- 主营：pvc线槽、塑料波纹管、热缩管、冷压端子、uk接线端子排、C45导轨、M8M12连接器、散热风扇、扎带、结束带
- 主营：电缆头、冷缩终端头、欧式插拔头
- 主营：集线器、连接器、控制器、电缆组件、分线盒、航空插头、法兰螺母、防爆插头、高温插座、屏蔽三通、预铸插头、金属插头、航空插座、接线螺钉、电源插头、铠装线束、追光测试、终端电阻、阀门连接线、监测传感器、带线接插件、铠装波纹管、延长转接头、无线接收器、蓝色连接线
- 主营：电力金具、铁附件、横担、铜接线端子、耐张线夹、抱箍、重锤片、绝缘子、调整板、连接金具、拉线抱箍、碗头挂板、二线墙担、角铁横担、直角挂板、球头挂环、拉线棒、悬垂线夹、光缆金具、导线金具、防震锤、楔形线夹、UT 线夹、联板、U型挂环
- 主营：防水接线盒、塑料防水盒、防水接头、电缆接头、防折弯接头、软管防水接头、六角金属堵塞件、钢钉线卡、塑料堵塞件、圆形金属堵塞件、尼龙扎带、膨胀管、电力拖链、pet-ct-m12
- 主营：铜铝线夹、铁附件、拉线棒、接线端子、电力抱箍、铝包带、防震锤、热镀锌、绝缘子、u型抱箍、u型挂环、镀锌横担、耐张线夹、悬垂线夹、装卸线夹、四线横担、六角螺母、五孔联板、扁铁抱箍、线鼻子、设备线夹、接续金具、连接金具、间隔棒、联板
- 主营：传感器、电磁阀、保护器、地磅、电动脚手架、装载机电子秤、机械抓手、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、研磨机、裁切机、平移门电机、超市防盗门、磨片磨头、滑移机、消防机器人、农业打药机、履带底盘、消防器材
- 主营：pvc线槽、C45导轨、塑料波纹管、接线端子排、冷压端子、UK端子排、ST端子排、PT端子排、m8m12连接器、热缩管、铜鼻子、重载连接器、扎带、编织网管、低烟无卤线槽、耐高温线槽
- 主营：电力金具、铁附件、绝缘子、接线端子、拉线棒、抱箍、线鼻子、铝包带、防振锤、热镀锌、U型挂环、悬垂线夹、耐张线夹设备线夹、镀锌横担、导线金具、装卸线夹、镀锌螺丝、螺母、U型抱箍、铜铝线夹、地脚螺栓、光伏支架、T型线夹、保护金具、接续金具
- 主营：配电箱、配电柜、模块化机柜、威图柜、控制箱、工业机柜、动力柜、电气柜、开关柜、金属箱、弱电箱、基业箱、塑料配电箱、户外防水配电箱、玻璃纤维箱、PTC空气加热器、加热器、温控器、机柜温控器、防水箱、空气加热器、接线盒、工业插头插座、防水盒、光伏汇流箱
- 主营：硅胶套、硅胶圈、硅胶餐盘、密封圈、硅胶手表、硅胶儿童碗、医用硅胶管、高透明硅胶管、医疗硅胶塞子、防水硅橡胶圈、双色硅胶耳帽、医用硅胶面罩、阻燃硅胶保护套、硅胶汽车连接器、硅胶防尘保护套
- 主营：卷筒电缆、扁电缆、水下零浮力电缆、拖链电缆、捕鱼灯电缆、防爆扁电缆、防冻电缆
- 主营：铜鼻子、预分支、配电箱、耐火电缆、电缆附件、电线电缆、电缆接线、分支电缆、乙烯电缆、护套电缆、阻燃电缆、控制电缆、电缆终端、bvr电线、布电线、软芯线、yjv带铠、化粪池、铜芯电线、矿用采掘、中天电线、阻燃电线、项目电线、架空固定、平方电线
- 主营：铜鼻子、铜管、冷缩终端、接线端子、热缩终端、铜铝、铜编织带、接地线、安德森插头、REMA连接器