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Mersen Surge Protector Type 2+3 SPD 3 Pole 400/480 Volt 10KA TNC
MPN: 83230122
Alt. SKU: STPT23-20K320V-3P
Special Price
£80.12
£66.77
Regular Price
£106.82
Why Choose the STPT23-20K320V-3P Surge Protection Device?
The STPT23-20K320V-3P is a robust Type 2+3 surge protection device designed for three-phase TNC systems with -/400V and -/480V configurations. Rated at 20kA Imax (8/20), it provides reliable protection against transient overvoltages, helping to safeguard critical equipment and maintain operational uptime.
Featuring three pluggable modules and a compact, three-pole design, this SPD ensures straightforward installation and maintenance. Engineered for high performance and durability, it is an ideal choice for demanding industrial and commercial power distribution applications.
Technical Specifications
- Item number: 83230122
- Catalogue No: STPT23-20K320V-3P
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 3Ph, -/400; -/480V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules
- EAN/UPC Code: 8435297850908
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 20 kA
- Protection Modes: L-PE(N)
- System Configuration: TNC
- Combined Discharge Voltage (1,2/50) (Uoc): 10 kV
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace)
- Number of Poles: 3-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 63 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83230002
- Product Width: 54 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.314 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.274 kg
Product Code: 83230122
Key Benefits
- High surge current capacity of 20kA Imax (8/20) for effective transient overvoltage protection.
- Compact three-pole design with pluggable modules for easy installation and maintenance.
- Suitable for three-phase TNC systems at -/400V and -/480V configurations.
- Visual indication system with green OK status for quick operational checks.
- Durable PA66 CT1 housing material ensures long-lasting performance.
- DIN rail mounting for secure and standardised installation.
Compatibility
This surge protection device is compatible with three-phase TNC electrical systems operating at nominal voltages of 277/480V AC. It is designed to integrate seamlessly within industrial and commercial power distribution networks requiring Type 2+3 SPD protection.
Applications
- Industrial power distribution boards and control panels.
- Commercial building electrical installations.
- Protection of sensitive electronic equipment from transient surges.
- Renewable energy systems requiring surge protection.
- Data centres and critical infrastructure facilities.
Frequently Asked Questions
What type of electrical systems is the STPT23-20K320V-3P designed for?
It is designed for three-phase TNC systems with nominal voltages of -/400V and -/480V AC.
How does the indication system work?
The device features a green indicator that shows when the SPD is operational. If the indicator is not green, the module should be replaced.
Can this SPD be installed on a DIN rail?
Yes, the STPT23-20K320V-3P is designed for DIN rail mounting for easy and secure installation.
What is the maximum discharge current rating?
The maximum discharge current (Imax) is 20 kA (8/20 µs waveform).
Common Search Terms
Surge protection device, SPD 20kA, Type 2+3 surge protector, three-phase SPD, TNC system surge protection, pluggable SPD modules, DIN rail surge protector, industrial surge protection, commercial power surge device.
| Manufacturer Part Number | 83230122 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850908 |
| Height | 70mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400/480V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 10Ka |
| System Type | TNC |
| Alternative Product SKU | STPT23-20K320V-3P |
Write Your Own Review
Protection system of coordinated stages: Type 1, 2 and 3 SPDs
The SPDs of a surge protection system must be able to withstand the discharged current and provide a Ures level (residua l voltage) lower than the Ue peak voltage that the equipment can withstand. Most of the times it is not possible to achieve this with just one SPD, especially because the intensity of the surge is not known, and because of the induction of overvoltages when conductors exceed 10m.
The optimal system of protection is the 3-STEP approach, in which successive stages are combined in the performance of high discharge capacity devices and devices with an optimal voltage protection level (low). This is addressed by the definition of "Types" or "Classes" of SPDs according to the type of transient pulses to which each protected zone in the installation is subject to.
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