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Mersen Surge Protector Type 1+2 SPD 2 Pole 120 Volt 20KA TNS Remote Indication
MPN: 83120119
Alt. SKU: STPT12-12K150V-2PM
Why Choose the STPT12-12K150V-2PM Surge Protection Device?
This Type 1+2 surge protection device offers robust defence against transient overvoltages in single-phase TN-S systems, with a 12.5kA Iimp (10/350) discharge current rating ensuring reliable protection for sensitive equipment.
Featuring a compact two-module, two-pole, pluggable design with remote indication capabilities, it enables straightforward installation, easy maintenance, and remote status monitoring—minimising downtime and simplifying asset protection.
Product Code: 83120119
Key Benefits
- High discharge current capacity of 12.5kA (10/350) for effective surge protection.
- Compact two-module, two-pole pluggable design for easy installation and maintenance.
- Remote indication system with green/red microswitch for quick status monitoring.
- Suitable for single-phase TN-S systems, ensuring compatibility with common electrical configurations.
- Robust housing material (PA66 CT1) for durability and long service life.
- DIN rail mounting simplifies integration into existing electrical panels.
Compatibility
This surge protection device is compatible with single-phase TN-S systems operating at 120V nominal voltage. It supports protection modes L-PE and N-PE and is designed to be installed on DIN rails, making it suitable for a wide range of industrial and commercial electrical distribution boards.
Applications
- Protection of sensitive electrical and electronic equipment from transient overvoltages.
- Industrial and commercial electrical distribution panels.
- Buildings with TN-S earthing systems requiring surge protection.
- Systems requiring remote monitoring of surge protection device status.
- Use in environments where compliance with IEC Class I+II surge protection is required.
Technical Specifications
- Item number: 83120119
- Catalogue No: STPT12-12K150V-2PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph+N, 120/-V, 2+0 TNS, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297851417
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120
- 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) Microswitch
- Number of Poles: 2-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: 36 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.28 kg
- Sell Pack Width: 43 mm
- Sell Pack Length: 105 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.26 kg
Frequently Asked Questions
What type of electrical systems is this surge protection device suitable for?
It is designed for single-phase TN-S systems operating at 120V nominal voltage.
Does the device provide remote indication of its status?
Yes, it includes a green (OK) / not green (replace) microswitch for remote status monitoring.
What is the maximum discharge current this device can handle?
The device can handle a maximum discharge current (Imax 8/20) of 50 kA.
How is the device installed?
The device is mounted on a standard DIN rail for easy installation.
Is this product RoHS compliant?
Yes, the product is RoHS compliant.
Common Search Terms
Surge protection device, SPD Type 1+2, 12.5kA surge protector, TN-S system SPD, pluggable surge protector, DIN rail SPD, remote indication SPD, 2-pole surge protector, electrical transient protection, power line surge protection.
| Manufacturer Part Number | 83120119 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851417 |
| Height | 76mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 120V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K150V-2PM |

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.

