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Mersen Surge Protector Type 1+2 SPD 3 Pole 400/690 Volt 20KA IT/TNC R.I
MPN: 83120135
Alt. SKU: STPT12-12K440V-3PM
Special Price
£254.77
£212.31
Regular Price
£339.70
Why Choose the Surge Protection Device Type 1+2, STPT12-12K440V-3PM?
This pluggable Surge Protection Device offers robust protection for low-voltage three-phase IT and TNC systems, with a high impulse withstand current of 12.5kA (10/350 μs) per pole. Designed for 3+0 configuration, it is ideal for installations operating at -/400V and -/690V, providing reliable defence against direct and indirect lightning strikes in demanding industrial environments.
Featuring remote indication for real-time status monitoring, quick module replacement, and compact three-module design, this device ensures continuous operational safety with minimal maintenance. Engineered for straightforward integration in critical infrastructures, it minimises downtime and safeguards valuable equipment.
Technical Specifications
- Item number: 83120135
- Catalogue No: STPT12-12K440V-3PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/400; -/690V, 3+0 IT; TNC, 1 Pole, Pluggable, 3 Modules, Remote indication
- EAN/UPC Code: 8435297849377
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 400/690
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L-PE(N)
- System Configuration: TNC
- Lightning Impulse Current (10/350) (LIMP): 12.5 kA
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 3-Pole
- Torque Rating: 3 Nm
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120004
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.558 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.498 kg
Product Code: 83120135
Key Benefits
- High impulse withstand current of 12.5kA per pole ensures superior protection against surges.
- Pluggable design allows for quick and easy module replacement, reducing downtime.
- Remote indication system provides real-time status monitoring for proactive maintenance.
- Compact three-module configuration saves space in electrical panels.
- Suitable for both IT and TNC system configurations, offering versatile application.
- Durable housing material (PA66 CT1) ensures long-lasting performance in industrial environments.
Compatibility
This Surge Protection Device is compatible with low-voltage three-phase IT and TNC electrical systems operating at nominal voltages of 400V and 690V. It is designed for DIN rail mounting and integrates seamlessly with existing power line surge protection setups requiring Class I+II SPD types.
Applications
- Industrial facilities requiring protection against lightning and surge events.
- Commercial buildings with critical electrical infrastructure.
- Renewable energy installations such as solar and wind power plants.
- Data centres and telecommunications equipment protection.
- Manufacturing plants with sensitive electronic control systems.
Frequently Asked Questions
What type of systems is this SPD suitable for?
It is suitable for low-voltage three-phase IT and TNC systems operating at -/400V and -/690V.
How does the remote indication feature work?
The device includes a microswitch that changes from green (OK) to non-green (replace) status, allowing remote monitoring of the SPD's condition.
Can the modules be replaced individually?
Yes, the pluggable design allows for quick replacement of individual modules without disturbing the entire system.
What is the maximum discharge current of this device?
The maximum discharge current (Imax) is 50 kA (8/20 μs waveform).
Common Search Terms
Surge protection device, SPD Type 1+2, pluggable surge protector, 3-phase surge protection, lightning protection device, DIN rail SPD, remote indication SPD, industrial surge protector, 12.5kA surge arrester, TNC system surge protection.
| Manufacturer Part Number | 83120135 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849377 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400/690V |
| Maximum Continuous Voltage | 440V |
| Nominal Discharge Current | 20Ka |
| System Type | IT/TNC |
| Alternative Product SKU | STPT12-12K440V-3PM |
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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