BX7滑线变阻器/BX-7
BX7滑线变阻器产品介绍（中文）
BX7滑线变阻器是一种广泛应用于电气控制领域的可调电阻装置，适用于交流50Hz、电压380V以下及直流440V以下的电路环境。该产品采用优质康铜丝经氧化绝缘处理后紧密缠绕于陶瓷管上，通过金属支架固定，并配备导电电刷接触系统，用户可通过滑动电刷位置实现电阻值的连续调节。其典型应用场景包括电气机械设计阶段的电压/电流校正、实验室教学演示的电路参数调节，以及发电设备或直流电动机的励磁控制等。产品具有单管、双管等多种结构形式，阻值范围覆盖0.1Ω-29kΩ，额定电流最高可达50A，通过多管并联方式可扩展至200A负载能力。设计上注重散热性能与操作便利性，采用模块化结构支持串并联组合，满足不同电压、阻值的参数需求。安装时需注意保持环境通风，避免接触腐蚀性气体，定期维护电刷接触面可确保长期稳定运行。1915
BX7 Sliding Rheostat Product Introduction (English)
The BX7 sliding rheostat is a precision adjustable resistor designed for electrical control systems, compatible with both AC (50Hz/380V max) and DC (440V max) circuits. Its construction features oxidation-insulated constantan wire tightly wound on ceramic tubes, mounted on durable metal frames with movable conductive brushes for smooth resistance adjustment. This device serves versatile functions including voltage/current calibration during electrical machinery design, circuit parameter demonstration in laboratory education, and excitation control for generators or DC motors. Available in single-tube and double-tube configurations, it offers resistance ranges from 0.1Ω to 29kΩ with current ratings up to 50A (expandable to 200A via parallel connection). The product emphasizes heat dissipation efficiency and user-friendly operation, featuring modular designs for series/parallel combinations to accommodate diverse parameter requirements. Maintenance involves ensuring proper ventilation and periodic cleaning of brush contact surfaces to preserve optimal performance. 41721
产品技术特点
该变阻器采用传统绕线工艺，在连续工作状态下表现出良好的温度稳定性和阻值精度，误差控制在标称值的±10%以内。电阻管选用直径64mm的陶瓷材质，配合金属保护支架形成稳固结构，外形尺寸根据型号不同在265mm×90mm至520mm×180mm之间。特殊设计的接触系统允许电刷在康铜丝表面平滑移动，实现无级调节，同时产品提供M6安装孔和接地端子保障使用安全。对于教学科研用途，可通过限流接法或分压接法灵活改变电路特性，初始使用时建议将滑片置于电阻最大位置以确保设备安全。91928
Application Scenarios
In industrial settings, the BX7 series proves effective for load testing, discharge circuits, and aging equipment simulation. Educational institutions utilize its adjustable characteristics for demonstrating Ohm s Law principles and variable voltage/current relationships. The rheostat s customizable nature allows technical adaptation to non-standard specifications (below 400A) by providing current-voltage-resistance parameters. Typical installations include power generation facilities for motor speed regulation, where its parallel-configurable tubes (up to 8 units) deliver 50kW power handling capacity. The product s ceramic-core construction ensures stable performance under continuous operation, making it suitable for prolonged experimental sessions or industrial processes requiring gradual parameter adjustments. 21624
BX7滑线变阻器
的详细介绍BX7滑线变阻器/BX-7
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滑线变阻器（可订制特殊规格）
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序号
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型号
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名称
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示值范围
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额定电流
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出厂价￥
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3-68
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BX7
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滑线变阻器
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0～1k
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0.5A
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240
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3-69
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BX7
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滑线变阻器
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0～4k
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3A
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2710
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3-70
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BX8
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滑线变阻器
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0～5k
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0.3A
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410
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3-71
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BX8
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滑线变阻器
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0～2k
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0.8A
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500
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