We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Mersen Surge Protector Type 2 SPD 3 Pole 400/690 Volt 20KA IT
MPN: 83020142
Alt. SKU: STPT2-40K440V-3P
This product is discontinued.
Please view this replacement item.
Why Choose the STPT2-40K440V-3P Surge Protection Device?
The STPT2-40K440V-3P Surge Protection Device offers robust protection against transient overvoltages in 3-phase IT and TNC network systems, with a maximum discharge current (Imax) of 40kA (8/20 μs). Engineered for versatility, it supports both 400V and 690V system voltages, ensuring reliable performance in demanding industrial and commercial installations.
This pluggable, 3-pole, 3+0 modular SPD is designed for easy replacement and maintenance, minimising downtime. Its compact, three-module construction allows for straightforward integration into new or existing distribution boards, providing consistent surge protection where continuity is critical.
Product Code: 83020142
Key Benefits
- High surge current capacity with a maximum discharge current of 40 kA (8/20 μs) for superior protection.
- Versatile voltage compatibility supporting 400V and 690V systems, suitable for various industrial applications.
- Pluggable and modular design enables quick and easy replacement, reducing system downtime.
- Compact 3-pole, 3+0 module format ensures easy integration into existing distribution boards.
- Visual indication system (green OK / not green replace) for straightforward status monitoring.
- Robust housing material (PA66 CT1) and DIN rail mounting for durable and secure installation.
Compatibility
The STPT2-40K440V-3P is compatible with 3-phase IT and TNC network systems operating at nominal voltages of 400V and 690V AC. It is designed to fit standard DIN rail mounting systems and can be integrated into distribution boards requiring Type 2 surge protection devices with a 3-pole configuration. The device supports systems with a maximum back-up fuse rating of 125 A [gG].
Applications
- Industrial power distribution boards requiring surge protection.
- Commercial buildings with 3-phase electrical installations.
- Protection of sensitive electrical and electronic equipment from transient overvoltages.
- Renewable energy systems with 3-phase configurations.
- Infrastructure projects demanding reliable surge protection in IT and TNC networks.
Technical Specifications
- Item number: 83020142
- Catalogue No: STPT2-40K440V-3P
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph, -/400; -/690V, 3+0 IT; TNC, 3 Poles, Pluggable, 3 Modules
- EAN/UPC Code: 8435297851721
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 400/690
- 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)
- System Configuration: TNC
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace)
- Number of Poles: 3-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 125 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- VPR L-G: 1500 V
- VPR L-L: 3000 V
- Replacement Plug L1: 77707655
- Product Width: 54 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.373 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.334 kg
Frequently Asked Questions
What types of electrical systems is this SPD suitable for?
The STPT2-40K440V-3P is suitable for 3-phase IT and TNC network systems operating at 400V and 690V AC.
How does the indication system work?
The device features a green indicator when operational (OK). If the indicator is not green, it signals that the SPD should be replaced.
Can this SPD be installed on a DIN rail?
Yes, the SPD is designed for DIN rail mounting, allowing easy installation in standard distribution boards.
What is the maximum back-up fuse rating for this device?
The maximum back-up fuse rating is 125 A [gG], ensuring compatibility with common industrial fusing standards.
Is the SPD RoHS compliant?
Yes, the STPT2-40K440V-3P complies with RoHS regulations.
Common Search Terms
surge protection device, SPD 3-phase, Type 2 SPD, 40kA surge protector, pluggable SPD, DIN rail SPD, 400V surge protector, 690V surge protection, industrial surge protection, TNC network SPD
| Manufacturer Part Number | 83020142 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851721 |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400/690V |
| Maximum Continuous Voltage | 440V |
| Nominal Discharge Current | 20Ka |
| System Type | IT |
| Alternative Product SKU | STPT2-40K440V-3P |
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.
Related Products
Check items to add to the cart or
