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Rail Transient Barrier



  • Efficient clamping circuit technology helps ensure the lowest possible residual let-through voltage
  • Offers over-voltage and self-resetting over-current protection
  • 20 kA 8/20 μs maximum surge rating helps ensure high level protection and long service life
  • Compact design fits into DIN distribution panel boards and motor control centers


Part Number RTB30S3
Nominal System Voltage (Un) 30 VDC
21 VAC
Max Continuous Operating Voltage (Uc) 33 VDC
23 VAC
Max Discharge Current (Imax) 20 kA 8/20 μs
Rated Load Current (IL) 1.5 A
Voltage Protection Rating (VPR) 40.0 V @ 3 kA L-L
Inductance 40 µH
Loop Resistance 0.8 Ω
Mounting 35 mm top hat DIN rail
Protection Modes Common
Connection, Solid #18 – #10
Connection, Stranded #18 – #10
Enclosure Material UL® 94V-0 Thermoplastic
Enclosure Rating IP 20
Temperature -40 to 176 °F
Depth (D) 2.68"
Height (H) 3.54"
Width (W) 0.71"
Unit Weight 0.24 lb
Complies With ANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C
Replacement Module RTB30S3M
Standard Packaging Quantity 1 pc
UPC 78285647057
EAN-13 8711893014136

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