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Mersen Surge Protector Type 2 SPD 2 Pole 120 Volt 20KA TNS Remote Indication
MPN: 83020121
Alt. SKU: STPT2-40K150V-2PM
Special Price
£76.93
£64.11
Regular Price
£104.10
Why Choose the STPT2-40K150V-2PM Surge Protection Device?
The STPT2-40K150V-2PM offers reliable Type 2 surge protection for single-phase+neutral (1Ph+N), 2+0 TNS systems, with a maximum discharge current of 40kA (8/20 µs). Designed for 120/-V networks, it ensures robust protection of sensitive electrical installations from transient overvoltages typically caused by switching and indirect lightning strikes.
This compact, 2-pole, 2-module device features pluggable cartridges for swift maintenance and remote indication for real-time status monitoring. Engineered for straightforward DIN rail integration, it is ideal for industrial and commercial applications demanding dependable surge mitigation and operational continuity.
Technical Specifications
- Item number: 83020121
- Catalogue No: STPT2-40K150V-2PM
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 1Ph+N, 120/-V, 2+0 TNS, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297851042
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120
- AC or DC: AC
- Nominal Discharge Current (In) (8/20): 20 kA
- Max Discharge Current : Imax (8/20): 40 kA
- Protection Modes: L-PE / N-PE
- System Configuration: TNS
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 2-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 125 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- MCOV L-G: 320 V
- MCOV N-G: 277 V
- MCOV L-N: 320 V
- VPR L-G: 700 V
- VPR N-G: 700 V
- VPR L-N: 1200 V
- Replacement Plug L1: 83020001
- Product Width: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.23 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.2 kg
Product Code: 83020121
Key Benefits
- High surge current capacity with 40kA maximum discharge current for superior protection.
- Compact 2-module design for easy DIN rail installation and space-saving integration.
- Pluggable cartridges enable quick and safe maintenance without system downtime.
- Remote indication feature allows real-time monitoring of device status.
- Robust protection for sensitive single-phase + neutral electrical systems (1Ph+N).
- Complies with IEC Class II and UL Type 2 standards ensuring reliable performance.
Compatibility
The STPT2-40K150V-2PM is compatible with 2+0 TNS system configurations operating at 120/-V networks. It is designed for use in single-phase plus neutral (1Ph+N) AC systems and fits standard DIN rail mounting setups. Suitable for integration with backup fuses up to 125 A [gG].
Applications
- Industrial electrical panels requiring surge protection for sensitive equipment.
- Commercial buildings with 1Ph+N power distribution systems.
- Protection of control and automation systems from transient overvoltages.
- Electrical installations prone to indirect lightning strikes and switching surges.
- Facilities requiring remote monitoring of surge protection device status.
Frequently Asked Questions
What is the maximum surge current this device can handle?
The STPT2-40K150V-2PM can handle a maximum discharge current (Imax) of 40 kA (8/20 µs waveform).
Is this device suitable for three-phase systems?
No, this device is designed specifically for single-phase plus neutral (1Ph+N) systems with a 2+0 TNS configuration.
Can I monitor the status of the surge protection remotely?
Yes, the device includes a remote indication system with a microswitch for real-time status monitoring.
What mounting options are available for this SPD?
The device is designed for DIN rail mounting, allowing easy integration into standard electrical enclosures.
What is the recommended backup fuse rating?
The maximum recommended backup fuse for this device is 125 A [gG].
Common Search Terms
surge protection device, SPD 40kA, Type 2 surge protector, 1Ph+N SPD, DIN rail SPD, pluggable surge protector, remote indication SPD, 120V surge protection, TNS system SPD, industrial surge protector
| Manufacturer Part Number | 83020121 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851042 |
| Height | 70mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 120V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT2-40K150V-2PM |
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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