We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TT
MPN: 83120116
Alt. SKU: STPT12-12K320V-2PG
This product is discontinued. Please view this replacement item.
Why Choose the Surge Protection Device Type 1+2 STPT12-12K320V-2PG?
Engineered for robust lightning and surge protection, this Type 1+2 SPD delivers a high impulse current rating of 12.5kA (Iimp 10/350 µs) and is optimised for single-phase TT systems (1Ph+N, 277V) with a 1+1 configuration. Its pluggable 2-pole, 2-module design ensures straightforward installation and rapid replacement, reducing downtime during maintenance.
Ideal for both industrial and commercial applications, the STPT12-12K320V-2PG safeguards sensitive equipment and extends system longevity by offering reliable, continuous protection against transient overvoltages. Its compact build enables flexible integration within existing distribution boards without compromising space or performance.
Technical Specifications
- Item number: 83120116
- Catalogue No: STPT12-12K320V-2PG
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph+N, 277/-V, 1+1 TT, 2 Poles, Pluggable, 2 Modules
- EAN/UPC Code: 8435297851370
- 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)
- 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: 83120116
Key Benefits
- High impulse current rating of 12.5kA for superior surge protection
- Pluggable 2-pole, 2-module design for easy installation and maintenance
- Compact size allows integration in tight spaces within distribution boards
- Visual indication system for quick status checks and timely replacements
- Suitable for single-phase TT and TNS systems ensuring versatile application
- Robust housing material (PA66 CT1) ensures durability and long service life
Compatibility
This surge protection device is compatible with single-phase TT and TNS electrical systems operating at nominal voltages of 277V. It is designed to be mounted on standard DIN rails and can be integrated into existing distribution boards requiring 2-pole protection with pluggable modules. Replacement plugs (N-PE and L-N) are available for easy servicing.
Applications
- Industrial power distribution boards
- Commercial building electrical installations
- Lightning and surge protection for sensitive electronic equipment
- Renewable energy systems requiring transient overvoltage protection
- Infrastructure and utilities with TT and TNS system configurations
Frequently Asked Questions
What type of electrical systems is this SPD suitable for?
The STPT12-12K320V-2PG is designed for single-phase TT and TNS systems operating at 277V nominal voltage.
How does the indication system work?
The device features a visual indication system that shows green when the SPD is functioning correctly and changes colour when replacement is needed.
Can I replace the modules individually?
Yes, the SPD uses pluggable modules with replacement plugs available for both N-PE and L-N connections, facilitating easy maintenance.
What is the maximum backup fuse rating for this device?
The maximum back-up fuse rating is 200 A [gG], ensuring adequate protection coordination.
Common Search Terms
Surge protection device, Type 1+2 SPD, lightning protection, pluggable surge protector, 12.5kA impulse current SPD, 2-pole SPD, DIN rail SPD, TT system surge protection, TNS system SPD, transient voltage suppressor.
| Manufacturer Part Number | 83120116 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851370 |
| 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 |
| System Type | TT |
| Alternative Product SKU | STPT12-12K320V-2PG |
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.
Related Products
Check items to add to the cart or
