Description
Download product brochure https://www.erico.com/part.asp?part=TDX300S277/480T
FEATURES
- Transient Discriminating (TD) Technology provides increased service life
- Modular design allows easy replacement of surge modules
- Built-in features include TD Technology, thermal protection, short circuit current cartridge fusing and a surge counter
- Status indication flag per mode, voltage presence LEDs, audible alarm and voltage-free contacts providing remote status monitoring
- 300 kA 8/20 μs maximum surge rating provides protection suitable for service entrance, main-distribution panels and highly exposed applications
SPECIFICATIONS
| Part Number | TDX300S277/480T |
| Nominal System Voltage (Un) | 277/480 V |
| Distribution System | 3Ph 4W+G {suitable for TT system) |
| Max Continuous Operating Voltage (Uc) | 320/550 VAC |
| Stand-off Voltage | 480/831 V |
| Frequency | 50 – 60 Hz |
| Short Circuit Current Rating (SCCR) | 200 kA |
| Nominal Discharge Current (In), IEC | 40 kA 8/20 μs |
| Nominal Discharge Current (In), UL | 20 kA 8/20 μs |
| Max Discharge Current (Imax), Per Phase | 300 kA 8/20 μs |
| Impulse Current (Iimp), Per Mode | 25 kA 10/350 μs |
| Voltage Protection Rating (VPR), L-N | 1,200 V @ 3 kA |
| Protection Modes | L-N N-PE |
| Status Indication | LED Mechanical flag Audible alarm |
| Surge Counter | Yes |
| Technology | TD technology with thermal disconnect Over-current replaceable cartridge fusing |
| Remote Contacts | Yes |
| Lead Length | 762 mm |
| Lead Size | 5.26 mm² |
| Ground Lead Length | 914 mm |
| Temperature | -40 to 80 °C |
| Enclosure Material | Metal |
| Enclosure Rating | IP 20 NEMA®-1 |
| Mounting | 3/4” straight nipple |
| Depth (D) | 83 mm |
| Height (H) | 260 mm |
| Width (W) | 257 mm |
| Unit Weight | 5.9 kg |
| Certification Details | UL® 1449 Edition 4 Type 1/2, 20 kA Mode |
| Complies With | 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 |
| Replacement Module | TDS150M277 SGD125M |
| Certifications | CE C-Tick UL |
| Standard Packaging Quantity | 1 pc |
| UPC | 78285670855 |
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