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 1 Pole 230 Volt 20KA L-N Remote Indication
MPN: 83120103
Alt. SKU: STPT12-12K275V-1PM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K275V-1PM Surge Protection Device?
The STPT12-12K275V-1PM provides robust Type 1+2 surge protection with a high impulse current capacity of 12.5kA (10/350µs), ensuring reliable safeguarding of single-phase, 230V installations from transient overvoltages and direct lightning strikes. Its 1-pole, 1-module, pluggable design facilitates quick installation and easy maintenance in space-constrained consumer units or distribution boards.
Engineered with remote indication functionality, this device offers enhanced system monitoring for critical applications. It is ideal for professionals seeking dependable, compact surge protection to maintain operational continuity and protect sensitive equipment.
Technical Specifications
- Item number: 83120103
- Catalogue No: STPT12-12K275V-1PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph, 230V, L-N, 1 Pole, Pluggable, 1 Module, Remote indication
- EAN/UPC Code: 8435297849094
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L - N / L-PE / N-PE
- System Configuration: TNS, TNC, TT (only L-N)
- 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: 1-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 L1: 83120002
- Product Width: 18 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.205 kg
- Sell Pack Width: 24 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.182 kg
Product Code: 83120103
Key Benefits
- High impulse current capacity of 12.5kA (10/350µs) for superior surge protection.
- Compact 1-pole, 1-module pluggable design allows easy installation and maintenance.
- Remote indication system provides real-time status monitoring to ensure reliability.
- Suitable for single-phase, 230V systems with multiple protection modes (L-N, L-PE, N-PE).
- Robust construction with PA66 CT1 housing material ensures durability and safety.
Compatibility
The STPT12-12K275V-1PM is compatible with TNS, TNC, and TT system configurations (only L-N for TT). It is designed for use in single-phase 230V AC installations and fits standard DIN rail mounting systems, making it suitable for integration into most consumer units and distribution boards requiring Type 1+2 surge protection.
Applications
- Residential and commercial electrical distribution boards.
- Protection of sensitive electronic equipment from transient overvoltages.
- Industrial control panels requiring compact surge protection solutions.
- Systems exposed to frequent lightning activity or electrical disturbances.
- Consumer units with limited space needing pluggable surge protection devices.
Frequently Asked Questions
What does Type 1+2 surge protection mean?
Type 1+2 surge protection devices are designed to protect electrical installations from both direct lightning strikes (Type 1) and switching surges (Type 2), providing comprehensive protection for your system.
Can this SPD be used in three-phase systems?
No, the STPT12-12K275V-1PM is designed specifically for single-phase, 230V systems.
How does the remote indication feature work?
The device includes a microswitch that changes state when the SPD needs replacement, allowing remote monitoring of the device status without direct visual inspection.
What is the maximum back-up fuse rating for this device?
The maximum back-up fuse rating is 200 A [gG], ensuring adequate protection and coordination with the electrical installation.
Common Search Terms
surge protection device, SPD 230V, Type 1+2 SPD, pluggable surge protector, single-phase surge protection, lightning protection device, DIN rail SPD, remote indication surge protector
| Manufacturer Part Number | 83120103 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849094 |
| Height | 76mm |
| Width | 18mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 230V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | L-N |
| Alternative Product SKU | STPT12-12K275V-1PM |

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.

