TIME MARK监测器EX257B-415VAC/50HZ技术参数
SPECIFICATIONS | |
Nominal AC (phase to phase) | 415VAC |
Case Color | Yellow |
Adjustment range | 340-440VAC |
Frequency | 50Hz |
Power consumption | 3.3W |
Transient protection | 2500VAC for 10ms |
Repeat accuracy | ± 0.1% of set point (fixed conditions) |
Response time | 50ms drop out |
Dead band | Approximately 2% |
Output contacts | SPDT 10 amps at 240VAC resistive |
Expected relay life | Mechanical: 10 million operations |
Operating temp | -20° to +131° F |
Humidity tolerance | 0 - 97% w/o condensation |
Enclosure material | ABS plastic cover |
Mounting | 8-pin socket |
Weight | 5 ounces |
TIME MARK监测器257系列介绍
257型监测器持续监测三相电力线路的异常情况。正确调整后，即使存在再生电压，257 型监测器也能检测到带载电机上的缺相现象。
该装置包含一个固态电压和相位角检测电路，用于驱动一个机电继电器。当施加正确的电压和相位旋转时，内部继电器将通电。发生故障时，继电器将断电。故障排除后，监测器将自动复位（另有手动复位版本可供选择）。
257型断路器无需零线连接，可用于星形或三角形接法系统。其电压范围足够宽，可根据实际情况进行适当调整。断路器配备跳闸 (TRIP) 和正常 (NORM) 状态指示灯，方便用户进行调整和系统故障排除。
The Model 257 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 257 monitor will detect phase loss on a loaded motor even when regenerated voltage is present.
This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset (a manual reset version is also available).
The Model 257 does not require a neutral connection and can be used with Wye or Delta systems. Voltage ranges are sufficiently wide to allow for proper adjustment to existing conditions. Both TRIP and NORM condition indicators are provided to aid in adjustment and system trouble-shooting.
TIME MARK监测器257系列其他常用型号：
TIME MARK 257B
TIME MARK 257B-400HZ
TIME MARK 257BM
TIME MARK 257BM-400HZ
TIME MARK A257B
TIME MARK A257B-400HZ
TIME MARK A257BM
TIME MARK A257BM-400HZ
TIME MARK B257B
TIME MARK B257B-400HZ
TIME MARK B257BM
TIME MARK B257BM-400HZ
TIME MARK EX257B
TIME MARK EX257BM
TIME MARK EX257BM-415V/50HZ
TIME MARK EX257B-415VAC/50HZ
TIME MARK EX257B-415V/50HZ
TIME MARK 3-Phase Monitor NEW + ORIGINAL+ ONE YEAR WARRANTY
爱泽工业成立于2010年，定位于向制造工业提供高端制造技术和设备。代理经营世界优质的电气自动化、机械与传动、流体控制、仪器仪表、工具等产品。作为电气，液压以及气动解决方案的合作伙伴，我们利用我们的全球协作团队，为客户提供先进解决方案，市场知识以及相关增值服务来帮助优化客户的工作效率，提高可靠性和安全性，致力于成为工业产品和解决方案的优质渠道。
如果有任何关于TIME MARK监测器EX257B-415VAC/50HZ的疑问，请随时与我们沟通（021-31006702）。我们将尽全力解决您的问题。
If you have any question for TIME MARK products, please feel free to dial 0086-21-3100 6702/ send request email to sales@ize-industries.com / browse our website:www.ize-industries.com.
TIME MARK监测器257系列EX257B-415VAC/50HZ技术参数及介绍
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