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Mersen Surge Protector Type 2 SPD 2 Pole 277 Volt 20KA TT Remote Indication
MPN: 83020119
Alt. SKU: STPT2-40K320V-2PGM
This product is discontinued. Please view this replacement item.
Why Choose the Surge Protection Device Type 2, 40kA Imax, 1Ph+N (STPT2-40K320V-2PGM)?
This pluggable, two-pole surge protection device safeguards single phase + neutral (1Ph+N) TT installations, delivering robust protection up to 40kA (8/20μs) and supporting 277V nominal systems. Its compact two-module DIN rail design is ideal for space-limited panels.
Engineered for reliability, it features remote indication for real-time status monitoring and fast maintenance. Suitable for industrial and commercial distribution boards, this SPD delivers high-performance, maintenance-friendly protection against transient overvoltages.
Technical Specifications
- Item number: 83020119
- Catalogue No: STPT2-40K320V-2PGM
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 1Ph+N, 277/-V, 1+1 TT, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297850762
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 40 kA
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- Following Current (Ifi): 100 A
- 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
- Installation Mounting: DIN rail
- Uc (L-N): 320 V
- Uc (N-PE): 277 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,5 kV
- VPR L-G: 1500 V
- VPR N-G: 700 V
- VPR L-N: 1200 V
- Replacement Plug N-PE: 83020000
- Replacement Plug L-N: 83020003
- Product Width: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.233 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.202 kg
Product Code: 83020119
Key Benefits
- High surge current capacity of 40kA (8/20μs) for robust protection
- Compact two-module DIN rail design saves panel space
- Remote indication for easy monitoring and maintenance
- Pluggable format allows quick replacement and installation
- Suitable for TT and TNS system configurations
- Reliable protection modes L-N and N-PE ensure comprehensive coverage
Compatibility
This SPD is compatible with single phase plus neutral (1Ph+N) TT and TNS electrical installations operating at nominal voltages up to 277V. It integrates seamlessly with industrial and commercial distribution boards using DIN rail mounting and supports backup fuses up to 125 A [gG]. Replacement plugs 83020000 (N-PE) and 83020003 (L-N) ensure easy maintenance.
Applications
- Industrial and commercial electrical distribution boards
- Single phase + neutral TT installations requiring surge protection
- Buildings with sensitive electronic equipment needing transient overvoltage protection
- Systems requiring remote indication of SPD status for maintenance
- Panels with limited space needing compact protection solutions
Frequently Asked Questions
What is the maximum surge current this device can handle?
The device can handle a maximum discharge current (Imax) of 40kA (8/20μs).
Can this SPD be used in TNS systems?
Yes, it is compatible with both TT and TNS system configurations.
Does this device provide remote indication?
Yes, it features a remote indication system with a green (OK) / not green (replace) microswitch.
What is the mounting type for this SPD?
The device is designed for DIN rail mounting.
What are the replacement plug codes for this SPD?
The replacement plug for N-PE is 83020000 and for L-N is 83020003.
Common Search Terms
surge protection device, SPD 40kA, type 2 surge protector, pluggable SPD, DIN rail surge protector, 1Ph+N SPD, TT system surge protection, remote indication SPD, transient overvoltage protection, industrial surge protection
| Manufacturer Part Number | 83020119 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850762 |
| Height | 70mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TT |
| Alternative Product SKU | STPT2-40K320V-2PGM |

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.

