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Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TNS Remote Indication
MPN: 83120123
Alt. SKU: STPT12-12K320V-2PM
This product is discontinued. Please view this replacement item.
Why Choose the Surge Protection Device Type 1+2 STPT12-12K320V-2PM?
Engineered for reliable protection, this Type 1+2 SPD safeguards single-phase + neutral (1Ph+N) systems up to 277V in TNS configurations. Delivering a robust 12.5kA Iimp (10/350) impulse current handling per pole, it effectively shields critical equipment from lightning strikes and transient overvoltages.
Featuring two pluggable modules and remote status indication, this 2-pole surge protector streamlines maintenance and monitoring. Its compact 2-module DIN rail design ensures straightforward integration into new or existing electrical panels, making it an essential choice for comprehensive system resilience.
Technical Specifications
- Item number: 83120123
- Catalogue No: STPT12-12K320V-2PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph+N, 277/-V, 2+0 TNS, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297851448
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277
- 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: 83120003
- Replacement Plug L-N: 83120003
- Product Width: 36 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.31 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.28 kg
Product Code: 83120123
Key Benefits
- High impulse current capacity of 12.5kA per pole for superior surge protection.
- Pluggable modules allow easy replacement and maintenance without panel disassembly.
- Remote status indication simplifies monitoring and ensures timely device replacement.
- Compact 2-module DIN rail design for easy integration into existing electrical panels.
- Suitable for single-phase + neutral TNS systems up to 277V.
Compatibility
This surge protection device is designed for use in single-phase plus neutral (1Ph+N) TNS electrical systems operating at nominal voltages up to 277V AC. It is compatible with electrical panels that support DIN rail mounting and require Class I+II surge protection. Replacement plugs with catalogue number 83120003 are compatible for both L-N and N-PE connections.
Applications
- Industrial and commercial electrical distribution boards.
- Protection of sensitive electronic equipment from transient overvoltages.
- Lightning protection in buildings with TNS earthing systems.
- Renewable energy installations requiring surge protection.
- Data centres and telecommunications infrastructure.
Frequently Asked Questions
What does Type 1+2 surge protection mean?
Type 1+2 surge protection devices combine the features of Type 1 (lightning current handling) and Type 2 (switching surge protection), providing comprehensive protection against both direct lightning strikes and switching surges.
Can this device be used in three-phase systems?
This particular model is designed for single-phase plus neutral (1Ph+N) systems. For three-phase systems, a different SPD model designed for that configuration should be used.
How does the remote status indication work?
The device includes a microswitch that changes state when the SPD requires replacement, enabling remote monitoring systems to receive status updates without manual inspection.
What is the maximum back-up fuse rating for this SPD?
The maximum back-up fuse rating for this device is 200 A [gG], ensuring proper coordination and protection of the SPD.
Common Search Terms
surge protection device, SPD Type 1+2, 12.5kA surge protector, DIN rail SPD, lightning protection, 277V surge protector, pluggable SPD, remote indication SPD, TNS system surge protection, power line SPD
| Manufacturer Part Number | 83120123 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851448 |
| Height | 76mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K320V-2PM |
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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