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Mersen Surge Protector Type 1+2 SPD 3 Pole 208 Volt 20KA TNC
MPN: 83120128
Alt. SKU: STPT12-12K150V-3P
Special Price
£237.34
£197.78
Regular Price
£321.14
Why Choose the STPT12-12K150V-3P Surge Protection Device?
Engineered for robust protection, the STPT12-12K150V-3P SPD delivers reliable surge defence for three-phase -/208V TNC systems, handling impulse currents up to 12.5kA (10/350 µs). Its 3+0 configuration with three pluggable modules ensures quick installation and straightforward maintenance.
Ideal for critical industrial and commercial applications, this Type 1+2 device effectively safeguards equipment from transient overvoltages, minimising downtime and prolonging service life of connected assets. Space-saving three-pole design integrates seamlessly into modern distribution boards.
Product Code: 83120128
Key Benefits
- High impulse current capacity of 12.5kA (10/350 µs) ensures superior surge protection.
- 3+0 pluggable module design allows for easy installation and maintenance.
- Compact three-pole configuration saves space in distribution boards.
- Visual indication system (Green OK / Not green replace) for quick status checks.
- Robust housing material (PA66 CT1) for enhanced durability.
- Suitable for TNC system configurations with -/208V nominal voltage.
Compatibility
This surge protection device is compatible with three-phase TNC electrical systems operating at 120/208V AC. It is designed to fit standard DIN rail mounting systems and is suitable for use with backup fuses up to 200 A [gG]. Replacement plugs for L1 are available under part number 83120001.
Applications
- Industrial power distribution boards requiring Type 1+2 surge protection.
- Commercial buildings with three-phase -/208V TNC electrical systems.
- Protection of sensitive electrical and electronic equipment from transient overvoltages.
- Facilities requiring compliance with IEC Class I+II surge protection standards.
- Environments where quick maintenance and module replacement are essential.
Technical Specifications
- Item number: 83120128
- Catalogue No: STPT12-12K150V-3P
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/208V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules
- EAN/UPC Code: 8435297851455
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120/208
- 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
- Max. Back-Up Fuse: 200 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120001
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.417 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.377 kg
Frequently Asked Questions
What type of electrical systems is the STPT12-12K150V-3P compatible with?
It is designed for three-phase -/208V TNC systems operating on AC power.
What is the maximum impulse current this device can handle?
The device can handle lightning impulse currents up to 12.5kA (10/350 µs waveform).
How is the status of the surge protection device indicated?
The device features a visual indication system showing green when operational and a non-green indication when replacement is required.
Can the modules be replaced individually?
Yes, the 3+0 pluggable module design allows for quick and easy replacement of individual modules.
Common Search Terms
surge protection device, SPD, Type 1+2 SPD, 3-phase surge protector, 12.5kA surge protector, pluggable SPD, TNC system surge protection, 208V surge protector, industrial surge protection, power line SPD
| Manufacturer Part Number | 83120128 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851455 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 208V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| System Type | TNC |
| Alternative Product SKU | STPT12-12K150V-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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