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Mersen Surge Protector Type 1+2 SPD 3 Pole 208 Volt 20KA TNC Remote Indication
MPN: 83120129
Alt. SKU: STPT12-12K150V-3PM
Special Price
£265.81
£221.51
Regular Price
£359.69
Why Choose the STPT12-12K150V-3PM Surge Protection Device?
The STPT12-12K150V-3PM is a robust Type 1+2 surge protection device designed for three-phase systems at -/208V in TNC (3+0) configurations. With a high surge current rating of 12.5kA Iimp (10/350), it offers effective defence against direct and indirect lightning events, ensuring consistent protection for critical electrical infrastructure.
This pluggable, three-pole module features clear remote indication for reliable status monitoring and rapid maintenance, minimising downtime. Engineered for ease of installation and long-term performance, it is an ideal choice for demanding commercial and industrial applications where system reliability is paramount.
Technical Specifications
- Item number: 83120129
- Catalogue No: STPT12-12K150V-3PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/208V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules, Remote indication
- EAN/UPC Code: 8435297851462
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120/208
- 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: 83120001
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.44 kg
- Sell Pack Width: 65 mm
- Sell Pack Length: 105 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.412 kg
Product Code: 83120129
Key Benefits
- High surge current rating of 12.5kA Iimp (10/350) for superior lightning protection
- Pluggable design allows for quick and easy replacement or maintenance
- Clear remote indication system ensures reliable status monitoring
- Compact size with DIN rail mounting for convenient installation
- Suitable for three-phase TNC (3+0) systems at 120/208V
- Robust construction with PA66 CT1 housing for durability
Compatibility
The STPT12-12K150V-3PM is compatible with three-phase electrical systems configured in TNC (3+0) arrangements operating at nominal voltages of 120/208V AC. It is designed to integrate seamlessly with standard DIN rail mounting systems and can be used alongside backup fuses rated up to 200 A [gG]. Replacement plugs such as model 83120001 are available for maintenance purposes.
Applications
- Commercial and industrial electrical installations requiring surge protection
- Protection of critical infrastructure against lightning and transient overvoltages
- Three-phase power distribution boards and switchgear
- Systems requiring remote monitoring of surge protection status
- Facilities with high exposure to lightning or transient surge events
Frequently Asked Questions
What type of systems is the STPT12-12K150V-3PM suitable for?
It is designed for three-phase TNC (3+0) systems operating at 120/208V AC, providing surge protection for these configurations.
How does the remote indication system work?
The device features a microswitch with a green (OK) indicator; if the indicator is not green, it signals that the module needs to be replaced.
Can this device be installed on a DIN rail?
Yes, the STPT12-12K150V-3PM is designed for DIN rail mounting for ease of installation.
What is the maximum backup fuse rating for this SPD?
The maximum backup fuse rating is 200 A [gG].
Common Search Terms
surge protection device, SPD, Type 1+2 SPD, three-phase surge protector, 12.5kA surge arrester, DIN rail SPD, remote indication surge protector, TNC system surge protection, industrial surge protector, lightning protection device
| Manufacturer Part Number | 83120129 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851462 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 208V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNC |
| Alternative Product SKU | STPT12-12K150V-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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