【案例CASE】：杭州|Legrand 罗格朗 单相安全变压器 044211,40VA
▊ 概要
高思（GAOSSI®）专业供应法国罗格朗（Legrand）品牌控制与信号变压器（control, signalling and safety isolation transformers open type single phase）0442系列044211（40VA, 230~400V ac输入,24V ac输出）等产品，应用在汽车、光伏、机床、冲床/压力机、车辆、钢铁、建筑、机械设备、电气设备、电子、通讯、医疗器械等行业。
—— ◇ ——
▣ BRIEF INTRODUCTION
- 单相安全变压器
- 044211
- 40VA, 230~400V ac输入,24V ac输出
▊ 属性
| 品名 NAME | 型号 TYPE | 系列 SERIES |
| 控制与信号变压器（control, signalling and safety isolation transformers open type single phase） | 044211 | 0442系列 |
| 品牌 BRAND | 系别 COUNTRY | 产地 ORIGIN |
| 罗格朗（Legrand） | 法国 | 法国 |
▊ 客户
杭州市某客户
▊ 实图
图1 LEGRAND罗格朗 单相安全变压器 044211出货实物图
一、客户背景
杭州某电子元器件制造有限公司专注于智能家居控制模块、汽车电子传感器的研发生产，在 SMT 生产线智能化升级项目中，需为 PCB 板检测仪器、贴片设备定位传感器、小型继电器及 PLC 辅助控制单元提供安全稳定的低压供电。车间存在新老生产线电压差异（老设备 230V 供电，新 SMT 设备适配 400V），电子加工过程中产生的 PCB 粉尘与静电易影响设备运行，且精密检测仪器对电磁干扰极为敏感，需一款轻负载适配、双重隔离、防尘抗干扰、紧凑集成的供电解决方案，保障产品加工精度与生产线连续运行。
Customer Background
A Hangzhou-based electronic component manufacturing Co., Ltd. specializes in the R&D and production of smart home control modules and automotive electronic sensors. In the intelligent upgrade project of its SMT production line, it required a safe and stable low-voltage power supply for PCB testing instruments, placement equipment positioning sensors, small relays, and PLC auxiliary control units. Due to voltage differences between new and old production lines in the workshop (230V for old equipment and 400V for new SMT equipment), PCB dust and static electricity generated during electronic processing are prone to affecting equipment operation, and precision testing instruments are extremely sensitive to electromagnetic interference. A power supply solution with light load adaptation, dual isolation, dustproof and anti-interference, and compact integration was needed to ensure product processing accuracy and continuous production line operation.
二、产品选型
客户选用 Legrand 罗格朗单相安全隔离变压器 044211，额定视在功率 40VA，精准匹配电子行业轻负载精密设备的供电需求；其 6 档宽范围初级电压（215V/230V/245V/385V/400V/415V）可灵活兼容新老生产线混合电压环境，次级稳定输出 24V 安全电压。产品核心亮点在于安全 + 隔离双重属性，能有效阻断电磁干扰与静电传导，避免精密元件损坏；采用 IEC 85 标准 B 级绝缘材料、IP2X 防尘防护及 IK04 抗冲击设计，可抵御 PCB 粉尘侵入与车间轻微碰撞；模块化超紧凑结构（94×78×113mm）+ 螺钉端子连接，完美适配 SMT 生产线小型控制柜的高密度集成需求，接线便捷且接触可靠，完全契合电子制造行业 “精密、安全、高效” 的核心诉求。
Product Selection
The customer selected the Legrand single-phase safety isolation transformer 044211 with a rated apparent power of 40VA, which accurately matches the power supply needs of light-load precision equipment in the electronic industry. Its 6-range wide primary voltage (215V/230V/245V/385V/400V/415V) can flexibly adapt to the mixed voltage environment of new and old production lines, and the secondary side stably outputs 24V safety voltage. The core highlight of the product is its dual attributes of safety and isolation, which can effectively block electromagnetic interference and static electricity conduction, avoiding damage to precision components. Adopting Class B insulation material compliant with IEC 85, IP2X dustproof protection, and IK04 impact resistance design, it can resist PCB dust intrusion and slight collisions in the workshop. The modular ultra-compact structure (94×78×113mm) combined with screwed terminal connection perfectly meets the high-density integration requirements of small control cabinets in SMT production lines, enabling convenient and reliable wiring, which fully aligns with the core demands of “precision, safety, and efficiency” in the electronic manufacturing industry.
三、应用效果
该变压器成功集成于 15 条 SMT 生产线的控制柜内，通过多电压档位快速适配新老设备供电规格，无需额外配置电压转换装置，使生产线升级周期缩短 30%。双重隔离设计有效隔绝了电网波动、静电干扰及设备间电磁耦合，使 PCB 板检测仪器的检测精度从 ±0.05mm 提升至 ±0.02mm，传感器信号传输响应速度提升 20%；IP2X 防护等级成功阻挡 PCB 粉尘进入设备内部，螺钉端子的防氧化与防松动设计保障了连续生产中的接线稳定性。设备运行至今零故障，24V 安全电压杜绝了静电触电风险，生产线因供电干扰导致的停机时间减少 45%，产品不良率下降 3%，显著提升了企业的精密制造能力与市场竞争力。
Application Performance
The transformer was successfully integrated into the control cabinets of 15 SMT production lines. Its multi-voltage range design quickly adapted to the power supply specifications of new and old equipment without the need for additional voltage conversion devices, shortening the production line upgrade cycle by 30%. The dual isolation design effectively isolated power grid fluctuations, static interference, and electromagnetic coupling between equipment, improving the detection accuracy of PCB testing instruments from ±0.05mm to ±0.02mm and increasing the sensor signal transmission response speed by 20%. The IP2X protection class successfully blocked PCB dust from entering the equipment, and the anti-oxidation and anti-loosening design of screwed terminals guaranteed wiring stability during continuous production. The equipment has achieved zero failures since operation, and the 24V safety voltage eliminated the risk of static electric shock. The downtime of the production line caused by power supply interference was reduced by 45%, and the product defect rate decreased by 3%, significantly enhancing the enterprise’s precision manufacturing capabilities and market competitiveness.
四、典型优势
– 40VA 额定视在功率，精准匹配电子行业轻负载精密设备需求
– 安全 + 隔离双重属性，阻断静电、电磁干扰，保护精密电子元件
– 6 档宽幅电压适配（215-415V），兼容新老生产线混合供电场景
– 94×78×113mm 超紧凑尺寸，适配 SMT 生产线小型控制柜集成
– B 级绝缘 + IP2X 防尘 + IK04 抗冲击，适配电子车间复杂工况
– 螺钉端子 + 清晰标记，安装维护便捷，降低生产停机风险
Key Advantages
– 40VA rated apparent power, accurately matching the needs of light-load precision equipment in the electronic industry
– Dual attributes of safety and isolation, blocking static electricity and electromagnetic interference, protecting precision electronic components
– 6-range wide voltage adaptability (215-415V), compatible with mixed power supply scenarios of new and old production lines
– Ultra-compact size of 94×78×113mm, suitable for integration in small control cabinets of SMT production lines
– Class B insulation + IP2X dustproof + IK04 impact resistance, adapting to complex working conditions of electronic workshops
– Screwed terminals + clear markings, convenient installation and maintenance, reducing production downtime risks
五、总结
Legrand 罗格朗 044211 单相安全隔离变压器在杭州某电子元器件制造企业 SMT 生产线的成功应用，精准解决了电子行业轻负载精密供电、混合电压适配、静电与电磁干扰防护等核心痛点。其双重安全隔离设计、轻负载精准匹配能力与紧凑集成特性，不仅保障了精密电子元件的加工精度与生产线稳定性，更助力企业高效完成智能化升级，为电子制造行业的高质量发展提供了可靠的供电支撑。
Conclusion
The successful application of the Legrand 044211 single-phase safety isolation transformer in the SMT production line of an electronic component manufacturing enterprise in Hangzhou has accurately solved the core pain points of the electronic industry, such as light-load precision power supply, mixed voltage adaptation, and protection against static electricity and electromagnetic interference. Its dual safety isolation design, light-load accurate matching capability, and compact integration characteristics not only ensure the processing accuracy of precision electronic components and production line stability but also help the enterprise efficiently complete intelligent upgrading, providing reliable power supply support for the high-quality development of the electronic manufacturing industry.
提示：了解更多系列型号，可咨询客服、参考产品目录或企业官网。
购买说明
• 了解更多上述系列型号产品的规格、特点、应用等详情，可咨询客服，或参考官方网站/产品目录。
• 以上展示的产品图片仅供说明用，具体型号可能有所差异。
• 上述系列型号产品的外观、包装、产地、附件说明等可能会因升级迭代等原因而有变更，请以实际报价或产品目录等为准。
• 关于上述系列型号的产品【价格、货期、付款、物流】等信息，请参考具体邮件或报价等。
权利声明
• 以上文章部分或全部图片、文字等信息转自于互联网、声明CC0协议第三方网站、官网或产品目录等。如有侵犯权利或不希望本网站使用，请联系我们，本网站将在第一时间移除。详情参见【著作权声明】。
• Disclaimer: The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All product names, trademarks, brands and logos used on this site are the property of their respective owners.
• この Web サイトに掲載されている製品の名前、商標、ブランド、およびロゴを特徴とする製品の描写、説明、または販売は、識別のみを目的としており、権利所有者との提携または承認を示すことを意図したものではありません。 このサイトで使用されているすべての製品名、商標、ブランド、およびロゴは、それぞれの所有者の財産です。
高思承诺
• 高思销售的商品提供正规增值税发票、商务文件、专业的售后服务。
正品行货
• 高思向您保证所售商品均为正品行货。
高效配送
• 高思销售的商品默认以顺丰或京东快递/物流发货，安全快速。（部分商品除外，详情参见具体报价或相关规定）
