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Mersen Surge Protector Type 2 SPD 3 Pole 400 Volt 20KA TNC
MPN: 83020134
Alt. SKU: STPT2-40K275V-3P
This product is discontinued.
Please view this replacement item.
Why Choose the STPT2-40K275V-3P Surge Protection Device?
The STPT2-40K275V-3P offers reliable Type 2 surge protection with a maximum discharge current of 40kA (8/20μs) for three-phase 400V TN-C systems. Its robust three-pole design provides assured overvoltage defence for critical industrial and commercial installations.
Featuring pluggable modules for quick replacement and minimal downtime, this surge protection device enables straightforward installation into three-module DIN-rail slots, ensuring ongoing system integrity and equipment safety.
Technical Specifications
- Item number: 83020134
- Catalogue No: STPT2-40K275V-3P
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph, -/400V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules
- EAN/UPC Code: 8435297850939
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230/400
- 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
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- VPR L-G: 900 V
- VPR L-L: 1800 V
- Replacement Plug N-PE: 77707664
- Replacement Plug L-N: 77707654
- Product Width: 54 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.345 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.301 kg
Product Code: STPT2-40K275V-3P
Key Benefits
- High surge current capacity of 40kA ensures robust protection against transient overvoltages.
- Pluggable design allows quick and easy module replacement, minimising system downtime.
- Three-pole configuration suitable for 3-phase 400V TN-C systems.
- Visual indication system provides clear status of device health for maintenance ease.
- Compact size with DIN rail mounting facilitates straightforward installation in control panels.
- Compliant with IEC and UL standards, guaranteeing reliable performance and safety.
Compatibility
The STPT2-40K275V-3P is compatible with three-phase 400V TN-C electrical systems and designed for installation on standard DIN rails. It supports connection with backup fuses up to 125 A [gG] and can be integrated seamlessly into industrial and commercial electrical distribution boards.
Applications
- Industrial power distribution panels
- Commercial building electrical systems
- Manufacturing facilities requiring surge protection
- Renewable energy installations with three-phase systems
- Data centres and critical infrastructure protection
Frequently Asked Questions
What type of surge protection does this device provide?
The STPT2-40K275V-3P provides Type 2 surge protection, suitable for protecting electrical installations from transient overvoltages caused by indirect lightning strikes and switching operations.
Can the modules be replaced without disconnecting the entire device?
Yes, the device features pluggable modules that allow for quick replacement without the need to disconnect the entire unit, reducing downtime.
Is this surge protector suitable for single-phase systems?
No, this model is designed specifically for three-phase 400V TN-C systems and is not suitable for single-phase applications.
What indication system does the device use to show its status?
It uses a green indicator to show normal operation. If the indicator is not green, it signals that the module needs to be replaced.
Common Search Terms
surge protection device, SPD Type 2, 3-phase surge protector, DIN rail SPD, pluggable surge protection, 40kA surge protector, industrial surge protection, commercial surge protector, TN-C system SPD
| Manufacturer Part Number | 83020134 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850939 |
| Height | 70mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| System Type | TNC |
| Alternative Product SKU | STPT2-40K275V-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.
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