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Mersen Surge Protector Type 1 SPD 1 Pole 277 Volt 50KA L-N
MPN: 83010104
Alt. SKU: STMT1-50K320V-1P
Special Price
£194.44
£162.03
Regular Price
£263.10
Why Choose the STMT1-50K320V-1P Surge Protection Device?
The STMT1-50K320V-1P is a robust Type 1 surge protection device engineered for single-phase 277V systems, protecting against direct lightning currents up to 50kA Iimp (10/350μs). Its monobloc, 1-pole design ensures reliable L-N protection, making it ideal for critical infrastructure and main incomer panels.
Compact across just 2 modules, this unit simplifies installation within tight enclosures while delivering consistent performance and compliance with international surge standards. Depend on the STMT1-50K320V-1P for reliable system longevity and optimal grid safety.
Product Code: STMT1-50K320V-1P
Key Benefits
- High surge current capacity of 50kA (10/350μs) for superior lightning protection.
- Compact 2-module monobloc design for easy installation in confined spaces.
- Reliable 1-pole L-N protection suitable for single-phase 277V systems.
- Complies with IEC Class I surge protection standards for assured performance.
- Durable construction with a torque rating of 3 Nm for secure mounting on DIN rails.
Compatibility
The STMT1-50K320V-1P is compatible with TNS, TNC, and TT system configurations (only L-N protection). It is designed for use in AC single-phase 277V electrical installations, making it suitable for main incomer panels and critical infrastructure requiring high-level surge protection.
Applications
- Main incomer panels in commercial and industrial buildings.
- Critical infrastructure requiring robust lightning and surge protection.
- Power distribution systems in single-phase 277V networks.
- Environments with limited space needing compact surge protection devices.
Technical Specifications
- Item number: 83010104
- Catalogue No: STMT1-50K320V-1P
- Description: Surge Protection Device Type 1, 50kA Iimp (10/350), 1Ph, 277V, L-N, 1 Pole, Monobloc, 2 Modules
- EAN/UPC Code: 8435297852339
- RoHS Compliant: Yes
- IEC SPD Type: Class I
- Format: Monobloc
- Nominal Operating Volt Rating (Un): 277
- AC or DC: AC
- Protection Modes: L - N / L-PE / N-PE
- System Configuration: TNS, TNC, TT (only L-N)
- Lightning Impulse Current (10/350) (LIMP): 50 kA
- Following Current (Ifi): 50 kA
- Short Circuit Withstand (ISCCR): 50 kA
- Number of Poles: 1-pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 500 A [gG]
- MOV Response Time: ≤50
- Installation Mounting: DIN rail
- Product Width: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.282 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.252 kg
Frequently Asked Questions
What type of systems is the STMT1-50K320V-1P suitable for?
It is designed for single-phase 277V AC systems, compatible with TNS, TNC, and TT configurations (L-N protection only).
How much surge current can this device handle?
The device can handle a lightning impulse current of up to 50kA (10/350μs waveform).
What is the installation method for this SPD?
The STMT1-50K320V-1P is mounted on a standard DIN rail for easy installation.
Is this surge protector RoHS compliant?
Yes, it meets RoHS compliance standards.
Common Search Terms
Surge Protection Device, SPD Type 1, 50kA surge protector, single-phase 277V SPD, monobloc SPD, lightning current protector, DIN rail surge protector, power line SPD, electrical surge protection, industrial surge protector.
| Manufacturer Part Number | 83010104 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297852339 |
| Height | 70mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 50Ka |
| System Type | L-N |
| Alternative Product SKU | STMT1-50K320V-1P |
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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