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Mersen Surge Protector Type 1+2 SPD 4 Pole 120/208 Volt 20KA TNS
MPN: 83120142
Alt. SKU: STPT12-12K150V-4P
Special Price
£313.19
£260.99
Regular Price
£423.78
Why Choose the Surge Protection Device Type 1+2, 12.5kA Iimp (STPT12-12K150V-4P)?
This high-performance surge protection device offers robust safeguarding for 3-phase+neutral, 120/208V, 4+0 TNS systems, handling impulse currents up to 12.5kA (10/350 μs) per pole. Its pluggable, 4-pole modular design enables straightforward installation, rapid replacement, and maximum operational reliability in demanding industrial environments.
Engineered for critical infrastructure, the unit ensures full compliance with IEC standards for Type 1+2 protection, providing effective defence against direct lightning strikes and transient overvoltages. Ideal for panel builders and facility managers seeking superior protection, flexibility, and long-term durability.
Product Code: 83120142
Key Benefits
- High impulse current capacity of 12.5kA per pole for superior surge protection.
- Pluggable 4-pole modular design allows easy installation and quick replacement.
- Complies with IEC Type 1+2 standards ensuring reliable defence against lightning and transient overvoltages.
- Visual indication system with green (OK) / not green (replace) status for maintenance ease.
- Suitable for 3-phase+neutral 120/208V TNS systems, ideal for industrial and commercial applications.
- Robust housing material (PA66 CT1) and DIN rail mounting for durable and secure installation.
Compatibility
This surge protection device is compatible with 3-phase plus neutral (3Ph+N) electrical systems operating at 120/208V, specifically designed for TNS system configurations. It supports installation on DIN rails and is suitable for use with back-up fuses up to 200 A [gG]. Replacement plugs (N-PE and L-N) are available under part number 83120001, ensuring seamless maintenance and part replacement.
Applications
- Industrial electrical panels requiring Type 1+2 surge protection.
- Commercial buildings with 3-phase+neutral TNS power distribution systems.
- Critical infrastructure installations needing reliable lightning and surge defence.
- Panel builders and facility managers seeking modular and pluggable SPD solutions.
- Electrical systems exposed to frequent transient overvoltages and lightning surges.
Technical Specifications
- Item number: 83120142
- Catalogue No: STPT12-12K150V-4P
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 120/208V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297851578
- 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-PE
- System Configuration: TNS
- 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: 4-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 N-PE: 83120001
- Replacement Plug L-N: 83120001
- Product Width: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.661 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.63 kg
Frequently Asked Questions
What types of electrical systems is this SPD suitable for?
This device is designed for 3-phase plus neutral (3Ph+N) TNS systems operating at 120/208V AC.
How does the indication system work?
The SPD features a visual indication system where green means the device is functioning correctly, and a non-green indicator signals that replacement is necessary.
Can I replace individual modules of this SPD?
Yes, the pluggable modular design allows for easy replacement of individual modules using replacement plugs (part number 83120001).
What is the maximum back-up fuse rating for this device?
The maximum back-up fuse rating is 200 A [gG].
Common Search Terms
surge protection device, SPD Type 1+2, 12.5kA surge protector, 3-phase surge protector, pluggable SPD, 120/208V surge protection, industrial surge device, TNS system SPD, lightning protection device, modular surge protection
| Manufacturer Part Number | 83120142 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851578 |
| Height | 76mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 120/208V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K150V-4P |
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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