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Mersen Surge Protector Type 1+2 SPD 4 Pole 277/480 Volt 20KA TNS Remote Indication
MPN: 83120147
Alt. SKU: STPT12-12K320V-4PM
This product is discontinued. Please view this replacement item.
Why Choose the Surge Protection Device Type 1+2 STPT12-12K320V-4PM?
Engineered for robust protection, this pluggable SPD delivers a maximum impulse current of 12.5kA (10/350μs) per pole, safeguarding 3-phase plus neutral (3Ph+N) TN-S systems at 277/480V. Its 4-pole, 4-module design ensures seamless integration into modern industrial switchgear assemblies, enhancing operational reliability.
The device features remote indication for real-time status monitoring, allowing proactive maintenance and minimising downtime. With proven durability and easy replacement modules, the STPT12-12K320V-4PM offers a dependable solution for critical power distribution environments seeking premium surge protection.
Technical Specifications
- Item number: 83120147
- Catalogue No: STPT12-12K320V-4PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 277/480V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297851615
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- 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: 4-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: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.715 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.67 kg
Product Code: STPT12-12K320V-4PM
Key Benefits
- High impulse current capacity of 12.5kA per pole ensures superior surge protection.
- Pluggable 4-module design allows for easy installation and maintenance.
- Remote indication feature enables real-time monitoring and proactive maintenance.
- Robust construction with PA66 CT1 housing material for enhanced durability.
- Compatible with 3-phase plus neutral TN-S systems at 277/480V for versatile applications.
Compatibility
This surge protection device is designed for use with 3-phase plus neutral (3Ph+N) TN-S electrical systems operating at 277/480V AC. It is suitable for integration into industrial switchgear assemblies with DIN rail mounting and supports backup fuses up to 200 A [gG]. Replacement plugs for N-PE and L-N are available under part number 83120003, ensuring seamless component replacement.
Applications
- Industrial power distribution panels requiring Type 1+2 surge protection.
- Commercial and industrial facilities with 3-phase 4-wire TN-S systems.
- Critical infrastructure installations demanding reliable lightning impulse current handling.
- Switchgear assemblies needing pluggable and easy-to-maintain SPD modules.
- Environments requiring remote status indication for maintenance efficiency.
Frequently Asked Questions
What is the maximum impulse current this SPD can handle?
The STPT12-12K320V-4PM can handle a maximum lightning impulse current (10/350μs) of 12.5 kA per pole.
Can this device be used in TN-C or TT systems?
This device is specifically designed for TN-S systems and is not recommended for TN-C or TT configurations.
Does the device provide remote indication?
Yes, it features a remote indication system with a green (OK) or non-green (replace) microswitch for status monitoring.
What is the mounting method for this SPD?
The device is designed for DIN rail mounting, facilitating easy installation in standard industrial switchgear.
Are replacement modules available?
Yes, replacement plugs for both N-PE and L-N are available under part number 83120003.
Common Search Terms
Surge protection device, SPD Type 1+2, pluggable surge protector, 12.5kA surge arrester, 3-phase surge protection, TN-S system SPD, industrial surge protector, DIN rail SPD, remote indication SPD, power line SPD
| Manufacturer Part Number | 83120147 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851615 |
| Height | 76mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 277/480V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K320V-4PM |
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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