4-20mA Isolators


COM Express Type 2 & 3
COM Express Type 6
SFF Computers
Ethernet I/O Modules
Modbus I/O Modules
Profibus I/O Modules
HART I/O Modules
Network Repeaters
4-20mA Isolators
4-20mA Splitters
USB Isolators
Transmitters and Converters
Limit Alarms
Panel Meters
8B I/O Modules

Signal isolators receive a 4-20mA process current inputs and provide an isolated 4-20mA output signal. One multi-channel units, each channel operates independently and is isolated from the others to prevent interaction between channels. Galvanic isolation eliminates ground loops, reduces noise, and blocks transient signals.

Model Number


151T Transmitter, Loop-Powered Universal Input (TC, RTD, mV, ohms) • Thermocouple (J, K, T, E, R, S, B, C, N, U), RTD (Pt, Cu, Ni), -15 to 115mV DC, 4 to 20mA DC



Transmitter/Isolator, Current/Millivolt Input, Loop-Powered • Multi-range ±20mA or

±500mV input • 4-20mA ouput (sink/source)

650T 651T / 652T: Isolator, Single/Dual Channel • 4 to 20mA DC input • 4 to 20mA DC output • Output loop powered • Low cost isolator



671T / 672T / 674T: Isolator, Single/Dual/Quad Channel • 4 to 20mA DC input • 4 to 20mA DC output • Input loop powered
654T 654T DC Voltage Input Isolated Transmitter
655T 656T 655T 656 Thermocouple and MIllivolt Input Isolated Transmitters
657T 658T 657T 658T RTD Resistance Input Transmitter
250T-DC 250T-DC: Transmitter, Output Loop Power • DC voltage or current input • DC voltage or DC current output • Excellent accuracy and stability
270i 270i: Isolator, Input Loop Power • 4-20mA DC input • 4-20mA DC output • 1500V AC peak isolation DC prevents ground loops



340i: Isolator, DC-Powered • 4 to 20mA DC inoput • 4 to 20mA DC output • 10-36V DC power • 1500 AC peak isolation
TT236** Transmitter/Isolator, Current/Millivolt Input, DC-Powered • Multi-range ±20mA or ±500mV input • 4-20mA ouput (sink/source)
630T 631T / 632T: Isolator, Single/Dual Channel • 4 to 20mA DC input • 4 to 20mA DC output • 15-36V DC SELV, 90-250V AC power
TT336* Transmitter/Isolator, Current/ Millivolt Input, DC Power • Multi-range ±20mA or ±500mV

input • 4-20mA, ±20mA, 0-10V, or ±10V DC 

330i 330i: Isolator, DC-Powered • 4 to 20mA DC input • 4 to 20mA DC output • 10-36V DC power • Three-way isolation
430i 430i: Isolator, AC-Powered • 4 to 20mA DC input • 4 to 20mA DC output • 115V AC or 230V AC power • Three-way isolation




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新 北 市 汐 止 區 康 寧 街 169 巷 23 號 7 樓 之 一


 02-2695-6755, 02-2695-7011, 02-2695-7033


顏永富 分機:35 johnny@bentech-taiwan.com

上次更新日期: 2016年06月30日。