High-voltage Signal Isolators

 

Tue, 05/05/2015 Knick USA has introduced the P40000 “ProLine” universal high-voltage signal isolators. The Knick USA P40000 ProLine family is specially optimized for DC railway and light rail transit (LRT) applications. Series P40000 models are designed to accept voltages up to 3,600 V DC, in accordance with IEC/EN 50124-1 and IEC 62497-1. Electrical shock protection is achieved via protective separation of up to 1,800 V AC/DC, in accordance with IEC/EN 61140 and EN 61010-1. They are also UL 347 approved above 1,500 V and feature a mean time before failure of 96 years. Units have also successfully passed high shock and vibration testing in accordance with IEC61373. Knick USA ProLine signal isolators offer excellent signal transmission capabilities, including a >0.1% gain error; a cutoff frequency of >5 kHz with optional loss pass filtering; and >0.1 ms rise times. They also offer high immunity to transient noise (T-CMRR >115 dB) with virtually no influence from common mode voltages. Housings are highly durable, thanks to vacuum encapsulation and the incorporation of Knick USA’s own TransShield technology. This ensures the greatest possible product performance within the most compact modular housing footprint. For shunt-based current measurements, the Knick USA P41000 Series is particularly ideal. It can accept voltages from ±60 mV to ±100 V, converting them into impressed ±20 mA, ±10 V or 4-20 mA output signals. Alternatively, another series model, the P42000, can accept input voltages of up to 3, 600 V AC/DC and test voltages of up to 15 kV AC. Knick USA, www.knickusa.com