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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SD7412-2 |
| Manufacturer | Siemens |
| Product Type | Lightning Arrester |
| Brand | SENTRON |
| Standards/Regulations | IEC 61643-11: 2011, EN 61643-11: 2012 |
| SPD Classification | Type 1, Type 2 |
| Number of Ports | One |
| Mode of Protection | L-N, N-PE |
| Mounting Type | DIN rail: 35 mm |
| Colour | Light Grey RAL 7035 |
| Insulating Material | PA 6.6 / PBT |
| Housing Material | PBT |
| Pollution Degree | 2 |
| Overvoltage Category | III |
| Inflammability Class | UL 94 V-0 |
| Degree of Protection | IP20 (only when all terminal points are used) |
| Shock (Operation) | 30g (half sinus / 11 ms / 3x ±X, ±Y, ±Z) |
| Vibration (Operation) | 7.5g (10-500 Hz/2.5 h/XYZ) |
| Ambient Temperature (Operation) | -40 °C to 80 °C |
| Ambient Temperature (Storage) | -40 °C to 80 °C |
| Permissible Humidity (Operation) | 5% to 95% |
| Altitude | ≤ 2000 m (above mean sea level) |
| Width | 35.6 mm |
| Height | 89.8 mm |
| Depth | 77.5 mm |
| Weight | 328 g (Net), 356 g (Gross) |
| Nominal Voltage | 240 V AC (TN-S), 240 V AC (TT) |
| Nominal Frequency | 50 Hz (60 Hz) |
| Maximum Continuous Operating Voltage | 335 V AC (L-N), 264 V AC (N-PE) |
| Rated Load Current | 80 A |
| Residual Current | ≤ 5 µA |
| Standby Power Consumption | ≤ 270 mVA |
| Nominal Discharge Current | 12.5 kA (L-N), 50 kA (N-PE) |
| Maximum Discharge Current | 50 kA (L-N), 50 kA (N-PE) |
| Protection Level | 1.2 kV (N-L), 2 kV (L-PE), 0.6 kV (L-PE) |
| Impulse Discharge Current | 12.5 kA (1-phase, 8/20 µs) |
| Surge Withstand Capability | 1.7 kV (6 kV, 8/20 µs) |
| Residual Voltage | 1.2 kV (8/20 µs), 1.1 kV (10 kA, 8/20 µs), 0.5 kV (N-PE, 10 kA, 8/20 µs) |
| Stripped Length | 16 mm |
| Connectable Conductor Cross-Section | 1.5 ... 25 mm² (finely stranded), 1.5 ... 35 mm² (rigid) |
| AWG Number | 15 ... 2 |
| Design of Thread | M5 |
| Signal Design | Optical |
| TOV Behaviour | 415 V AC (L-N, 5 s), 1200 V (N-PE, 200 ms) |
| Short-Circuit Firmness | For 160gL: 25 kA rms |
| Type of Fusing | 160A80AGL/gG (with feed-through wiring) |
| Product Component | No remote-signaling contact |
| Size of Surge Arrester | 2 TE |
| Certificates/Approvals | Declaration of Conformity |
| Information and Download Center | Available on Siemens website |
| Industry Mall | Online ordering system available |
| Service & Support | Manuals, Certificates, Characteristics, FAQs available on Siemens website |
| Image Database | Product images, 2D dimension drawings, 3D models, device circuit diagrams available on Siemens website |
The Siemens 5SD7412-2 is a high-performance lightning arrester designed to provide robust protection for electrical systems against overvoltages caused by lightning strikes and switching operations. This Type 1 lightning arrester is suitable for use in 3-conductor networks (L, N, PE) and is engineered to safeguard installations and equipment in both residential and industrial environments.
With a nominal discharge current of 12.5 kA and a maximum discharge current of 50 kA, the 5SD7412-2 ensures reliable performance under extreme conditions. It operates at a nominal voltage of 240 V AC and can handle continuous operating voltages up to 335 V AC (L-N) and 264 V AC (N-PE). The device features a protection level of 1.2 kV between N and L, providing effective suppression of transient overvoltages.
The 5SD7412-2 is designed for easy installation on a standard 35 mm DIN rail, making it a versatile addition to any electrical distribution system. Its compact dimensions (35.6 mm width, 89.8 mm height, and 77.5 mm depth) and lightweight construction (328 g net weight) allow for seamless integration into existing setups.
Constructed from durable PA 6.6 and PBT materials, the 5SD7412-2 boasts a high degree of protection (IP20) and is rated for operation in a wide temperature range from -40 °C to 80 °C. It is compliant with IEC 61643-11 and EN 61643-11 standards, ensuring adherence to international safety and performance requirements.
Ideal for use in TT and TN-S distribution systems, the Siemens 5SD7412-2 lightning arrester is an essential component for protecting electrical infrastructure from the damaging effects of overvoltage events.
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Frequently Asked Questions
What type of device is this?
This is a Type 1 lightning arrester designed for overvoltage protection in low-voltage systems.
What is the maximum continuous operating voltage for this device?
The maximum continuous operating voltage is 335V AC for L-N and 264V AC for N-PE.
What is the rated discharge current for this lightning arrester?
The rated discharge current is 12.5 kA for L-N and 50 kA for N-PE.
What are the dimensions of this lightning arrester?
The dimensions are 35.6 mm in width, 89.8 mm in height, and 77.5 mm in depth.
What is the degree of protection provided by this device?
The device provides IP20 protection when all terminal points are used.
Can this device be mounted on a DIN rail?
Yes, it is designed for mounting on a 35 mm DIN rail.
What is the operating temperature range for this device?
The operating temperature range is from -40°C to 80°C.
What type of networks is this device suitable for?
It is suitable for 3-conductor networks (L, N, PE).
Does this device have a mechanical fault indication?
Yes, it features a mechanical fault indication.
What is the impulse discharge current rating for this device?
The impulse discharge current rating is 12.5 kA for 1-phase at (8/20) µs.
