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2TAM921100R3401 ABB eOVR T2-T3 1N 20-275 Digital Type 2 + Type 3 Surge Protective Device
ABB 2TAM921100R3401 eOVR T2-T3 1N 20-275 digital combined Type 2 and Type 3 surge protective device for 230 V AC single-phase systems, with 20 kA Imax, 5 kA In, 275 V Uc and 1.4 kV Up.
£440.34
Why Choose the ABB eOVR T2-T3 1N 20-275 Surge Protective Device?
The ABB eOVR T2-T3 1N 20-275 (2TAM921100R3401) is a digital combined Type 2 and Type 3 surge protective device (SPD) designed for single-phase electrical installations with neutral. Its 1+1 protection configuration provides coordinated protection against transient overvoltages, making it particularly suitable for protecting downstream circuits and sensitive electrical and electronic equipment.
Designed for a nominal system voltage of 230 V AC, the eOVR T2-T3 1N 20-275 has a maximum continuous operating voltage Uc of 275 V. It provides a maximum discharge current Imax of 20 kA and nominal discharge current In of 5 kA using the 8/20 µs waveform, together with a voltage protection level Up of 1.4 kV.
As part of ABB’s digital eOVR range, the device adds connected monitoring to conventional surge protection. Communication via RTU Modbus allows device information to be integrated with compatible ABB energy-management infrastructure, supporting remote supervision, proactive maintenance and improved visibility of surge protection within the electrical installation.
Key Advantages
- Combined Type 2 + Type 3 surge protection in a single device.
- Designed for single-phase systems with neutral.
- 1+1 protection configuration for line and neutral arrangements.
- 20 kA maximum discharge current (Imax) using the 8/20 µs waveform.
- 5 kA nominal discharge current (In).
- 275 V maximum continuous operating voltage (Uc).
- 1.4 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
- Digital communication supports remote monitoring and proactive maintenance.
- Suitable for final distribution and sensitive-load protection applications.
Key Features
- ABB eOVR T2-T3 1N 20-275 digital SPD.
- ABB order code 2TAM921100R3401.
- Combined Type 2 and Type 3 surge protective device.
- 1+1 protection topology.
- 230 V AC nominal system voltage.
- 275 V maximum continuous operating voltage (Uc).
- 20 kA maximum discharge current (Imax, 8/20 µs).
- 5 kA nominal discharge current (In, 8/20 µs).
- 1.4 kV voltage protection level (Up).
- Digital monitoring capability.
- RTU Modbus communication for connected monitoring.
- Optical status indication.
- IP20 degree of protection.
- Designed for DIN-rail electrical distribution applications.
Reliable Type 2 and Type 3 Protection for Sensitive Loads
Combined Type 2 and Type 3 SPDs provide coordinated transient overvoltage protection within low-voltage installations. They are particularly useful downstream in the electrical distribution system, where reducing residual surge voltage helps protect sensitive electronic loads from indirect lightning effects and switching-generated transients.
The ABB eOVR T2-T3 1N 20-275 combines an Imax of 20 kA, In of 5 kA and Up of 1.4 kV with digital connectivity. This combination provides defined surge-protection performance while allowing compatible monitoring infrastructure to provide greater visibility of the protective device and support proactive electrical maintenance.
Typical Applications
- Single-phase 230 V AC electrical installations.
- Final distribution boards and downstream circuits.
- Protection of sensitive electrical and electronic loads.
- Commercial building electrical systems.
- Industrial control and automation installations.
- Connected electrical installations requiring digital SPD monitoring.
Technical Specifications
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| Remote Signal | No | |
|---|---|---|
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Poles | 1-pole + N | |
| Earthing System | TN-S, TT | |
| Series | eOVR | |
| Order code | 2TAM921100R3401 | |
| Product type | Digital combined Type 2 + Type 3 surge protective device | |
| Product group | Surge Protection Devices | |
| SPD classification | Type 2 + Type 3 | |
| Protection configuration | 1+1 | |
| Nominal system voltage (Un) | 230 V AC | |
| Maximum continuous operating voltage (Uc) | 275 V | |
| Maximum discharge current (Imax, 8/20 µs) | 20 kA | |
| Nominal discharge current (In, 8/20 µs) | 5 kA | |
| Voltage protection level (Up) | 1.4 kV | |
| Communication | RTU Modbus | |
| Status indication | Optical | |
| Degree of protection | IP20 | |
| Mounting | DIN rail | |
| Standard | IEC 61643-11 | |
| EAN | 6941593457144 |
Frequently Asked Questions
What is the ABB eOVR T2-T3 1N 20-275 used for?
The ABB eOVR T2-T3 1N 20-275 is a combined Type 2 and Type 3 surge protective device designed to protect single-phase electrical installations and sensitive downstream equipment against transient overvoltages.
What is the maximum discharge current of the ABB 2TAM921100R3401?
The device has a maximum discharge current Imax of 20 kA using an 8/20 µs waveform and a nominal discharge current In of 5 kA.
What voltage is the ABB eOVR T2-T3 1N 20-275 designed for?
It is designed for a nominal system voltage of 230 V AC and has a maximum continuous operating voltage Uc of 275 V.
What protection configuration does the ABB eOVR T2-T3 1N 20-275 use?
The device uses a 1+1 protection configuration, making it suitable for single-phase electrical systems incorporating a neutral conductor.
Does the ABB eOVR T2-T3 1N 20-275 support digital monitoring?
Yes. The ABB eOVR range provides digital connectivity through RTU Modbus, allowing compatible monitoring systems to access device information and support remote supervision and proactive maintenance.
Trusted Surge Protection from ABB
ABB eOVR digital surge protective devices combine transient overvoltage protection with connected monitoring, with the eOVR T2-T3 1N 20-275 providing Type 2 and Type 3 protection for 230 V AC single-phase systems and sensitive downstream loads.
