JOHNSON CONTROLS压力开关P74系列技术参数
Specifications | |
Type number | P74DA:DPST,Contacts close on differential pressure increase |
Ambient | Minimum:32°F(0℃) |
Conduit opening | 7/8 in. (22 mm)diameter hole for 1/2”conduit |
Contact unit | P74A,P74B,P74C,P74D,P74G,P74H:Large copper backed silver contacts and Beryllium copper conductor leaves |
Differential | See table |
Finish | Grey baked |
Material | Case:.062 in. (1.6 mm)cold rolled steel |
Maximum pressure | See table |
Mounting bracket | Universal mounting bracket,Part No.271-51,supplied as standard |
Range | See table |
Shipping weight | Individual pack:2.4 Ib(1.1kg) |
JOHNSON CONTROLS压力开关P74系列介绍
P74系列可调差压开关
适合用于油和/或非腐蚀性制冷剂
两个传感元件之间的压力差会启动开关。
出厂设定在18 psi（124 kPa）时从COM切换到1，且在12 psi（83 kPa）时关闭开关，从COM切换到1
不可在现场调整
要完全监控一个电机驱动的两个制冷压缩机的润滑，需将此控制器连接到具有时间延迟的P28润滑油控制器。
P74 Series Adjustable differential pressure switch
Suitable for use with oil and/or non-corrosive refrigerants
A difference in pressure between the two sensing elements actuates the switch.
Factory-set to open the switch from COM to 1 at a differential pressure of 18 psi (124 kPa) and close the switch from COM to 1 at a differential pressure of 12 psi (83 kPa)
Not field-adjustable
To completely monitor the lubrication on two refrigeration compressors that one motor drives, connect this control to a P28 Lube Oil Control with time delay.
JOHNSON CONTROLS压力开关P74系列其他常用型号：
JOHNSON CONTROLS P74DA-9300
JOHNSON CONTROLS P74DA-9600
JOHNSON CONTROLS P74DA-15
JOHNSON CONTROLS P74DA-10
JOHNSON CONTROLS P74DA-15C
JOHNSON CONTROLS P74DA-19C
JOHNSON CONTROLS P74DA-8
JOHNSON CONTROLS CONTROLS 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JOHNSON CONTROLS压力开关P74DA-9300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 JOHNSON CONTROLS products, please feel free to dial 0086-21-3100 6702/ send request email to [email protected] / browse our website:www.ize-industries.com.
JOHNSON CONTROLS压力开关P74系列P74DA-9300技术参数介绍
沪公网安备31011002006738号