The CRITEC TDS-MOVTEC family of surge diverters offers economical and reliable protection from voltage transients in even the most strenuous applications.The small foot print provides integrators and OEMs with an effective use of real estate when installing within panels and equipment.

Transient Discriminating (TD) Technology, which meets the safety standards of UL1449 Edition 3, provides a superior life by eliminating the common temporary over-voltage failure mode of most SPDs. TD Technology is essential for any site where abnormal over-voltages can occur or where the possible catastrophic failure of traditional technologies can not be tolerated. Alarm contacts are provided which may be used to shut down the system or to activate an external warning if the internal surge material is below optimum condition.


  • Transient Discriminating (TD) Technology provides increased service life
  • Built-in features include TD Technology, thermal protection and short circuit current fusing
  • LED status indication and voltage-free contacts provide remote status monitoring
  • 100 kA 8/20 μs maximum surge rating provides protection suitable for smaller main-distribution panels and an extended operational life



Part Number TDSMT277
Article Number 700230
Nominal System Voltage (Un) 230 – 277 V
Nominal Discharge Current (In), Per Mode 80 kA 8/20 μs
Max Continuous Operating Voltage (Uc) 400 VAC
Stand-off Voltage 480 V
Frequency 50 – 60 Hz
Connection, Stranded 16 mm² Max
Impulse Current (Iimp) 20 kA 10/350 μs
Max Discharge Current (Imax), Per Mode 100 kA 8/20 μs
Voltage Protection Rating (VPR) 700.0 V @ 3 kA
980.0 V @ 20 kA
Aggregate Surge Rating 200 kA 8/20 μs
Back-Up Overcurrent Protection 100 A
Max Operating Current 25 mA
Protection Modes Single
Status Indication 5 segment LED bar graph per phase
Technology TD technology with thermal disconnect
Temperature -35 to 55 °C
Enclosure Material UL® 94V-0 Thermoplastic
Enclosure Rating IP 20
Depth (D) 140 mm
Height (H) 150 mm
Width (W) 45 mm
Unit Weight 0.6 kg
Certification Details UL® 1449 Edition 3 Recognized Component Type 2
Complies With ANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C
ANSI®/IEEE® C62.41.2-2002 Scenario II, Exposure 3, 100 kA 8/20 μs, 10 kA 10/350 μs
Certifications C-Tick
Standard Packaging Quantity 1 pc
UPC 78285644097
EAN-13 9321098000590

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