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Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TT Remote Indication
MPN: 83120117
Alt. SKU: STPT12-12K320V-2PGM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K320V-2PGM Surge Protection Device?
Engineered for robust protection, the Type 1+2 STPT12-12K320V-2PGM surge protection device offers high discharge capability at 12.5kA Iimp (10/350) for single-phase TT systems at 277 V. Its 2-pole, pluggable design ensures rapid replacement and minimum downtime in critical electrical installations.
Remote indication enhances operational oversight, while its compact, two-module footprint saves valuable space in distribution boards. Ideal for safeguarding sensitive equipment against lightning and transient surges, this device ensures compliance and long-term reliability in industrial and commercial applications.
Technical Specifications
- Item number: 83120117
- Catalogue No: STPT12-12K320V-2PGM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph+N, 277/-V, 1+1 TT, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297851387
- 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-N / N-PE
- System Configuration: TT, TNS
- Lightning Impulse Current (10/350) (LIMP): 12.5 kA
- Following Current (Ifi): 100 A
- 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
- Installation Mounting: DIN rail
- Uc (L-N): 320 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,4 kV
- Replacement Plug N-PE: 83120006
- 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: 0.323 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.292 kg
Product Code: STPT12-12K320V-2PGM
Key Benefits
- High surge current capacity with 12.5kA Iimp (10/350) for superior protection against lightning strikes.
- Compact 2-module pluggable design enables quick and easy replacement, reducing downtime.
- Remote indication feature provides real-time status monitoring for enhanced operational control.
- Suitable for single-phase TT and TNS systems at 277 V, ensuring broad application compatibility.
- Compliance with IEC Class I+II standards guarantees reliable and safe surge protection.
Compatibility
This surge protection device is designed for use in single-phase TT and TNS electrical systems operating at 277 V. It is compatible with installations requiring DIN rail mounting and supports protection modes L-N and N-PE. The device is suitable for integration in industrial and commercial distribution boards where space-saving and quick maintenance are priorities.
Applications
- Industrial and commercial electrical distribution boards
- Lightning and transient surge protection for sensitive equipment
- Power supply systems in single-phase TT and TNS configurations
- Buildings requiring compliance with surge protection standards
- Facilities demanding remote monitoring of surge protection status
Frequently Asked Questions
What does the remote indication feature do?
The remote indication feature allows the device to signal its operational status remotely, enabling maintenance personnel to monitor the SPD condition without direct inspection.
Is this SPD suitable for three-phase systems?
No, this particular model is designed for single-phase TT and TNS systems at 277 V.
Can the pluggable modules be replaced individually?
Yes, the device includes replacement plugs for both N-PE (83120006) and L-N (83120003) poles, allowing for easy and cost-effective maintenance.
What is the maximum backup fuse rating for this device?
The maximum back-up fuse rating is 200 A [gG], ensuring appropriate protection coordination.
Common Search Terms
surge protection device, SPD 277V, Type 1+2 SPD, pluggable surge protector, TT system SPD, remote indication SPD, lightning surge protection, DIN rail SPD, industrial surge protector, commercial surge protector
| Manufacturer Part Number | 83120117 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851387 |
| 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 | TT |
| Alternative Product SKU | STPT12-12K320V-2PGM |
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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