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Mersen Surge Protector Type 2 SPD 4 Pole 277/480 Volt 20KA TNS Remote Indication
MPN: 83020155
Alt. SKU: STPT2-40K320V-4PM
This product is discontinued. Please view this replacement item.
Why Choose the STPT2-40K320V-4PM Surge Protection Device?
Engineered for robust industrial and commercial applications, this Type 2 Surge Protection Device offers 40kA Imax (8/20μs) per pole, providing reliable protection for 3-phase+N, 277/480V TN-S systems. Its 4-pole, pluggable design ensures straightforward installation and maintenance, while the 4-module footprint is ideal for space-critical panels.
Remote indication facilitates proactive system monitoring and swift fault detection, reducing downtime risk. Built to stringent quality standards, the STPT2-40K320V-4PM is an essential choice to safeguard critical electrical infrastructure from transient overvoltages.
Technical Specifications
- Item number: 83020155
- Catalogue No: STPT2-40K320V-4PM
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph+N, 277/480V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297851257
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- 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: 4-Pole
- Torque Rating: 3 Nm
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- VPR L-G: 1000 V
- VPR L-L: 2000 V
- VPR N-G: 1000 V
- VPR L-N: 2000 V
- Replacement Plug N-PE: 77707671
- Replacement Plug L-N: 77707671
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.014 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.418 kg
Product Code: STPT2-40K320V-4PM
Key Benefits
- High surge current capacity of 40kA Imax per pole for superior protection.
- Pluggable 4-pole design enables easy installation and maintenance.
- Remote indication system for real-time status monitoring.
- Compact 4-module footprint saves panel space.
- Complies with IEC Class II and UL Type 2 standards ensuring reliability.
- Suitable for 3-phase + neutral TN-S systems at 277/480V.
Compatibility
This surge protection device is compatible with TN-S electrical distribution systems operating at 277/480V AC. It is designed for use in industrial and commercial electrical panels with DIN rail mounting and supports 3-phase plus neutral configurations. Replacement plugs 77707671 are available for N-PE and L-N connections.
Applications
- Industrial electrical distribution boards
- Commercial building power panels
- Critical infrastructure surge protection
- Renewable energy system protection
- Data centres and server rooms
- Manufacturing facilities
Frequently Asked Questions
What is the maximum surge current this device can handle?
The STPT2-40K320V-4PM can handle a maximum surge current (Imax) of 40kA per pole (8/20μs waveform).
Can this SPD be used in single-phase systems?
This device is specifically designed for 3-phase plus neutral TN-S systems at 277/480V. It is not suitable for single-phase systems.
Does the device provide remote indication?
Yes, it includes a remote indication system with a green (OK) / not green (replace) microswitch for easy monitoring.
What is the mounting method for this SPD?
The device is designed for DIN rail mounting, facilitating easy installation in standard electrical panels.
Common Search Terms
Type 2 SPD, 40kA surge protector, 277/480V surge protection device, 4-pole pluggable SPD, DIN rail surge protector, industrial surge protection, TN-S system SPD, remote indication SPD
| Manufacturer Part Number | 83020155 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851257 |
| Height | 70mm |
| 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 | STPT2-40K320V-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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