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Mersen Surge Protector Type 1+2 SPD 3 Pole 400 Volt 20KA TNC
MPN: 83120130
Alt. SKU: STPT12-12K275V-3P
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K275V-3P Surge Protection Device?
This Type 1+2 surge protection device delivers robust protection for three-phase TN-C systems, effectively safeguarding equipment against the damaging effects of lightning and transient overvoltages. Its 12.5kA Iimp (10/350) per pole capability ensures compliance with modern installation standards and reliable service in demanding industrial environments.
Featuring a pluggable, three-module design, this device offers rapid replacement and reduced downtime. Suitable for 3-pole installations at up to 400V, it is ideal for main distribution boards requiring efficient and space-saving protection.
Technical Specifications
- Item number: 83120130
- Catalogue No: STPT12-12K275V-3P
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/400V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules
- EAN/UPC Code: 8435297851479
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230/400
- 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)
- Number of Poles: 3-Pole
- Torque Rating: 3 Nm
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120002
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.537 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.496 kg
Product Code: 83120130
Key Benefits
- High surge current capacity of 12.5kA (10/350) per pole for superior protection.
- Pluggable three-module design allows for quick and easy replacement, minimising downtime.
- Suitable for three-phase TN-C systems up to 400V, ideal for main distribution boards.
- Visual green indication system ensures easy status monitoring and maintenance.
- Compact dimensions save space in electrical panels.
- Robust housing material (PA66 CT1) ensures durability and reliability in industrial environments.
Compatibility
This surge protection device is compatible with three-phase TN-C electrical systems operating at 230/400V AC. It is designed for DIN rail mounting and fits standard main distribution boards requiring Type 1+2 surge protection. Replacement plugs such as model 83120002 are available for maintenance and upgrades.
Applications
- Industrial and commercial main distribution boards.
- Protection of sensitive electrical and electronic equipment from lightning and transient overvoltages.
- Buildings with TN-C earthing systems requiring high-level surge protection.
- Renewable energy installations and power generation facilities.
- Infrastructure and utility electrical panels.
Frequently Asked Questions
What does the 12.5kA Iimp rating mean?
The 12.5kA Iimp rating refers to the maximum lightning impulse current the device can safely handle per pole, measured using a 10/350µs waveform. This ensures the SPD can withstand severe lightning surges.
Is this device suitable for single-phase systems?
No, this particular model is designed for three-phase TN-C systems and is not suitable for single-phase installations.
How does the indication system work?
The device features a green indicator which shows when the SPD is functioning correctly. If the indicator is not green, it signals that the module needs to be replaced.
Can I replace individual modules?
Yes, the pluggable design allows for individual module replacement, reducing downtime and maintenance costs.
Common Search Terms
Surge protection device, SPD Type 1+2, 3-phase surge protector, 12.5kA lightning arrester, pluggable SPD, DIN rail surge protection, TN-C system SPD, industrial surge protector, main distribution board SPD.
| Manufacturer Part Number | 83120130 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851479 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| System Type | TNC |
| Alternative Product SKU | STPT12-12K275V-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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