Universal Transient Barrier, Dual Pair Single Power

The UTB series is designed to provide transient protection for equipment from surges induced onto balanced pair signal lines. They are well suited to the protection of industrial equipment such as PLCs and SCADA systems. Other uses include the protection of fire and security alarms, industrial monitoring and control equipment.

The UTB-DPS (dual pair – single power supply, single data pair) is specifically designed for applications where compact protection is required for one signal pair and one power supply, common in powered transducer applications. The UTB-DPS combines both these protection circuits in one compact package.


  • Compact design universal transient barrier provides protection of low-voltage circuits and transducers
  • Separate plug and base design allows hot-swappable module replacement
  • Multi-stage protection and fine over-voltage protection helps ensure lowest residual surge voltages reach sensitive equipment
  • Common-mode and differential-mode protection protects against both possible surge conditions
  • Designed for compact protection of signal and power supply in one compact housing


Part NumberUTB30DPS
Article Number702892
Nominal System Voltage (Un)24 – 48 VAC
12 – 60 VDC
Max Continuous Operating Voltage (Uc)48 VAC
60 VDC
Rated Load Current (IL)5 A
Frequency0 – 60 Hz
Loop Resistance0 Ω
Max Discharge Current (Imax), Per Mode15 kA 8/20 μs
Protection ModesCommon
TechnologyGas Discharge Tube (GDT)
Metal Oxide Varistor (MOV)
Silicon Avalanche Diode (SAD)
Voltage Protection Level (Up), L-L220 V @ 3 kA
Connection, Stranded1 – 4 mm²
Mounting35 mm top hat DIN rail
Temperature-20 to 65 °C
Enclosure MaterialUL® 94V-0 Thermoplastic
Enclosure RatingIP 20
Depth (D)85 mm
Height (H)90 mm
Width (W)12 mm
Unit Weight0.09 kg
Certification DetailsUL® 497B
Complies WithANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C
Replacement ModuleUTB30DPSM
Standard Packaging Quantity1 pc

The electrical specifications shown are specific to the power supply (PS) circuit of the product.