ABB 2TAM913000R5811 eOVR T1-T2 3L 12.5-440s is a digital combined Type 1 and Type 2 three-line surge protective device with 12.5 kA impulse current per pole, 30 kA nominal discharge current and 80 kA maximum discharge current for 400/690 V AC electrical systems.
SKU:2TAM913000R5811MPN:2TAM913000R5811
Price
List Price£1,329.22ex VAT
Your Price (ex VAT)
£1,329.22
Manufacturer Lead TimeEstimated Delivery 15 weeks
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The ABB eOVR T1-T2 3L 12.5-440s, order code 2TAM913000R5811, is a digital combined Type 1 and Type 2 surge protective device (SPD) designed to protect three-phase low-voltage electrical installations against lightning currents and transient overvoltages. Part of ABB’s eOVR digital surge protection range, it combines high-energy lightning current handling with effective downstream surge voltage limitation.
Designed for three-line installations, the eOVR T1-T2 3L 12.5-440s provides an impulse current Iimp of 12.5 kA per pole using a 10/350 µs waveform. It also provides a nominal discharge current In of 30 kA and a maximum discharge current Imax of 80 kA using an 8/20 µs waveform, enabling a single device to provide coordinated Type 1 and Type 2 surge protection.
With a nominal system voltage of 400/690 V AC and a maximum continuous operating voltage Uc of 440 V AC, this eOVR model is suited to demanding three-phase distribution systems. Its digital functionality supports integration with ABB monitoring solutions, providing enhanced visibility of surge protection status within modern commercial and industrial electrical installations.
Key Advantages
Combined Type 1 and Type 2 surge protection in a single device.
12.5 kA impulse current Iimp per pole using a 10/350 µs waveform.
30 kA nominal discharge current In using an 8/20 µs waveform.
80 kA maximum discharge current Imax for high surge handling capability.
Designed for three-line 400/690 V AC systems.
Digital eOVR functionality supports connected surge protection monitoring.
Key Features
ABB eOVR digital surge protection series.
Combined Type 1 + Type 2 SPD.
Three protected lines.
12.5 kA Iimp per pole at 10/350 µs.
37.5 kA total impulse current at 10/350 µs.
30 kA nominal discharge current In at 8/20 µs.
80 kA maximum discharge current Imax at 8/20 µs.
400/690 V AC nominal system voltage.
440 V AC maximum continuous operating voltage Uc.
Designed for three-phase low-voltage distribution installations.
Combined Lightning Current and Surge Protection
Combined Type 1 and Type 2 SPDs are designed to handle the high-energy currents associated with lightning while also limiting transient overvoltages to protect downstream electrical and electronic equipment. This makes them particularly useful at the origin of installations where coordinated lightning current and surge protection is required within a single protective device.
The ABB eOVR T1-T2 3L 12.5-440s combines a 12.5 kA per-pole lightning impulse capability with an 80 kA maximum 8/20 µs discharge capability. Its three-line configuration and 440 V AC maximum continuous operating voltage make it suitable for compatible high-voltage three-phase low-voltage distribution networks.
Typical Applications
Main low-voltage electrical distribution boards.
Commercial building electrical installations.
Industrial three-phase distribution systems.
Installations requiring combined Type 1 and Type 2 surge protection.
Buildings equipped with external lightning protection systems.
Protection of sensitive electrical and electronic equipment.
Industrial automation and control installations.
Technical Specifications
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Impulse Current Iimp (kA)
12.5 kA
Series
eOVR Digital SPDs
Order code
2TAM913000R5811
Product type
Combined Type 1 and Type 2 surge protective device
SPD classification
Type 1 + Type 2 / Class I + II
Protected lines
3
Nominal system voltage Un
400/690 V AC
Maximum continuous operating voltage Uc
440 V AC
Impulse current Iimp (10/350 µs)
12.5 kA per pole
Total impulse current Iimp (10/350 µs)
37.5 kA
Nominal discharge current In (8/20 µs)
30 kA
Maximum discharge current Imax (8/20 µs)
80 kA
System compatibility
TNC, TNS and TT (L-N)
Supply frequency
45–65 Hz
Protection rating
IP20
Standard
IEC 61643-11 / EN 61643-11
Frequently Asked Questions
What is the ABB eOVR T1-T2 3L 12.5-440s used for?
The ABB eOVR T1-T2 3L 12.5-440s is a combined Type 1 and Type 2 surge protective device used to protect three-phase low-voltage electrical installations against lightning currents and transient overvoltages.
What is the impulse current rating of the ABB 2TAM913000R5811?
The device has an impulse current Iimp of 12.5 kA per pole using a 10/350 µs waveform, with a total impulse current of 37.5 kA.
What is the maximum discharge current of the ABB eOVR T1-T2 3L 12.5-440s?
The SPD has a maximum discharge current Imax of 80 kA using an 8/20 µs waveform and a nominal discharge current In of 30 kA.
What voltage system is the ABB 2TAM913000R5811 designed for?
The device is designed for a nominal system voltage of 400/690 V AC and has a maximum continuous operating voltage Uc of 440 V AC.
Is the ABB eOVR T1-T2 3L 12.5-440s a Type 1 or Type 2 SPD?
It is a combined Type 1 and Type 2 SPD, providing both lightning current protection and transient surge protection in a single device in accordance with IEC 61643-11 / EN 61643-11.
Trusted Surge Protection from ABB
ABB eOVR digital surge protective devices combine lightning current and transient overvoltage protection with digital functionality for modern commercial and industrial low-voltage electrical distribution systems.
Impulse Current Iimp (kA)
12.5 kA
Series
eOVR Digital SPDs
Order code
2TAM913000R5811
Product type
Combined Type 1 and Type 2 surge protective device
SPD classification
Type 1 + Type 2 / Class I + II
Protected lines
3
Nominal system voltage Un
400/690 V AC
Maximum continuous operating voltage Uc
440 V AC
Impulse current Iimp (10/350 µs)
12.5 kA per pole
Total impulse current Iimp (10/350 µs)
37.5 kA
Nominal discharge current In (8/20 µs)
30 kA
Maximum discharge current Imax (8/20 µs)
80 kA
System compatibility
TNC, TNS and TT (L-N)
Supply frequency
45–65 Hz
Protection rating
IP20
Standard
IEC 61643-11 / EN 61643-11
No documents available for this product.
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