The TDX200 series of Transient Voltage Surge Suppressors is designed for critical protection applications. The 200 kA 8/20 μs of surge protection exceeds the IEEE C62.41.2 Scenario II single shot surge rating requirements for exposed service entrance locations- Exposure 3.
The NEMA-4 weather tight housign allows the TDX to be installed on indoor or outdoor service panels. The preconfigured connecting leads simplify installation. The unique narrow construction allows the SPD ti fit between adjacent panel boards and connect via a 90 degree elbow. A flush mounting kit is also available for installing the SPD in drywall applications. Listed as a Type 1 SPD to UL 1449 Edition 3, The TDX Series can be installed within a Type 1 or 2 location in accordance with NEC 2008.
200kA 8/20μs maximum surge rating provides protection suitable for service entrance, main-distribution panels and highly exposed applications.
Q: What is the recommended protection size (fuse) for the TDX200M277480TT?
A: Circuit breakers or HRC fuses are to be used as external protection, and existing protection may be used if it meets the following requirements. HRC fusing or D-curve breakers are less likely than C-curve breakers to suffer from nuisance tripping. This external fusing is primarily for protection against fault of the surge protection circuit wiring rather than failure of the surge diverter, so it is important to remember that the fuses/circuit breakers rating are limited by the connection wiring size as per standard wiring regulations. As TDX models are supplied with 5.26mm2 leads pre-fitted then 32A fusing would be typical.
|Nominal System Voltage (Un)||277/480 V|
|Distribution System||3Ph 4W+G|
|Max Continuous Operating Voltage (Uc)||320/550 VAC|
|Stand-off Voltage||480/831 VAC|
|Frequency||50 – 60 Hz|
|Short Circuit Current Rating (SCCR)||200 kA|
|Nominal Discharge Current (In)||80 kA 8/20 μs|
|Max Discharge Current (Imax), Per Phase||200 kA 8/20 μs|
|Impulse Current (Iimp), Per Mode||25 kA 10/350 μs|
50 kA 10/350 μs N-PE
|Voltage Protection Rating (VPR)||1,000.0 V @ 3 kA L-N|
1,800.0 V @ 20 kA L-N
|Technology||TD technology with thermal disconnect|
Over-current replaceable cartridge fusing
|Lead Length||762 mm|
|Lead Size||5.26 mm²|
|Ground Lead Length||914 mm|
|Temperature||-40 to 80 °C|
|Enclosure Rating||IP 65|
|Mounting||3/4” straight nipple|
|Depth (D)||78 mm|
|Height (H)||240 mm|
|Width (W)||130 mm|
|Unit Weight||2 kg|
|Certification Details||UL® 1449 Edition 4 Type 1/2, 20 kA Mode|
|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
IEC® 61643-1 Class I, Class II
|Standard Packaging Quantity||1 pc|