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Mersen Surge Protector Type 1+2 SPD 3 Pole 480 Volt 20KA TNC Remote Indication
MPN: 83120133
Alt. SKU: STPT12-12K320V-3PM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K320V-3PM Surge Protection Device?
Engineered for high-performance protection, the STPT12-12K320V-3PM is a Type 1+2 surge protection device, rated at 12.5kA Iimp (10/350) for robust defence against direct and indirect lightning strikes. It is suitable for 3-phase, 480V power systems in TNC configurations, ensuring reliable continuity and system integrity.
The compact pluggable module design enables swift installation and maintenance, while integrated remote indication assures real-time status monitoring. Specified as 1 pole across 3 modules, it delivers effective protection for critical industrial and commercial equipment.
Technical Specifications
- Item number: 83120133
- Catalogue No: STPT12-12K320V-3PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/480V, 3+0 TNC, 1 Pole, Pluggable, 3 Modules, Remote indication
- EAN/UPC Code: 8435297851493
- 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)
- System Configuration: TNC
- 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: 3-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: 83120003
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.566 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.528 kg
Product Code: STPT12-12K320V-3PM
Key Benefits
- High surge current capacity with 12.5kA Iimp (10/350) rating for superior lightning protection.
- Type 1+2 classification ensures comprehensive protection against direct and indirect surges.
- Compact pluggable design allows for easy installation and quick replacement.
- Integrated remote indication provides real-time status monitoring to reduce downtime.
- Suitable for 3-phase 480V TNC systems, ensuring compatibility with common industrial power configurations.
- Durable PA66 CT1 housing material ensures long-lasting performance in harsh environments.
Compatibility
The STPT12-12K320V-3PM is compatible with 3-phase, 480V power systems configured in TNC (3+0) arrangements. It is designed to fit standard DIN rail installations and works seamlessly with backup fuses up to 200 A [gG]. Replacement plugs such as the 83120003 ensure continued protection without full device replacement.
Applications
- Industrial power distribution boards
- Commercial building electrical panels
- Critical infrastructure surge protection
- Renewable energy installations
- Data centres and telecommunications equipment
- Manufacturing facilities requiring reliable surge defence
Frequently Asked Questions
What does Type 1+2 surge protection mean?
Type 1+2 SPD devices provide protection against both direct lightning strikes (Type 1) and switching surges (Type 2), offering comprehensive surge defence for electrical installations.
Can this device be used on single-phase systems?
This particular model is designed for 3-phase systems; however, similar products are available for single-phase applications.
How does the remote indication system work?
The device includes a microswitch that changes state when the SPD requires replacement, enabling remote monitoring of its operational status.
What is the significance of the 12.5kA Iimp rating?
The 12.5kA Iimp (10/350 µs) rating indicates the maximum impulse current the SPD can safely handle from lightning strikes, ensuring robust protection.
Common Search Terms
surge protection device, SPD, Type 1+2 SPD, 12.5kA surge protector, 3-phase surge protector, 480V SPD, TNC system surge protection, DIN rail SPD, pluggable surge protector, remote indication SPD
| Manufacturer Part Number | 83120133 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851493 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 480V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNC |
| Alternative Product SKU | STPT12-12K320V-3PM |
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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