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2TAM901100R4501 ABB eOVR T2 1N 40-350 Digital Type 2 Surge Protection Device
ABB 2TAM901100R4501 eOVR T2 1N 40-350 is a 230 V AC Type 2 digital surge protection device with 40 kA L-N maximum discharge current, 350 V maximum continuous operating voltage and Modbus RTU monitoring for TT and TN-S networks.
£491.87
Why Choose the ABB eOVR T2 1N 40-350 Digital Surge Protection Device?
The ABB eOVR T2 1N 40-350, order code 2TAM901100R4501, is an advanced Type 2 digital surge protection device (SPD) designed to protect low-voltage electrical installations and connected equipment against transient overvoltages. Part of ABB’s eOVR digital surge protection range, it combines high-performance surge protection with monitoring capabilities for modern energy-management systems.
Designed for 230 V AC TT and TN-S networks, the eOVR T2 1N 40-350 uses a 1+1 protection configuration for line-to-neutral and neutral-to-earth protection. It provides a nominal discharge current of 20 kA and a maximum discharge current of 40 kA on the L-N protection path, helping divert damaging transient currents before they reach sensitive downstream equipment.
Unlike a conventional SPD, the eOVR incorporates digital monitoring functionality and Modbus RTU connectivity. This enables information such as surge events, SPD lifetime, voltage conditions, ambient temperature and earth-connection status to be integrated with compatible ABB energy-management infrastructure, providing greater visibility of surge protection system health.
Key Advantages
- Advanced Type 2 digital surge protection for low-voltage installations.
- Designed for 230 V AC TT and TN-S networks.
- 40 kA maximum discharge current on the L-N protection path.
- 20 kA nominal discharge current for effective transient overvoltage protection.
- 350 V maximum continuous operating voltage.
- Digital monitoring with Modbus RTU communication.
- Monitors SPD condition and surge events to support predictive maintenance.
- Integrated thermal disconnector and end-of-life indication.
- Compact DIN-rail format for installation in electrical distribution boards.
Key Features
- ABB eOVR digital surge protection range.
- Type 2 / Class II surge protective device.
- 1+1 protection configuration.
- Two protected lines with L-N and N-PE protection modes.
- 230 V AC nominal system voltage.
- 350 V AC maximum continuous operating voltage (Uc).
- 20 kA L-N nominal discharge current (In, 8/20 µs).
- 40 kA L-N maximum discharge current (Imax, 8/20 µs).
- Voltage protection level of approximately 1.5 kV L-N at nominal discharge current.
- Integrated thermal disconnector and end-of-life indicator.
- Replaceable cartridge design for simplified maintenance.
- Digital monitoring and Modbus RTU communication.
Digital Surge Protection and Condition Monitoring
Transient overvoltages caused by lightning activity, switching operations and disturbances within electrical networks can damage electronic equipment or accelerate insulation degradation. The ABB eOVR T2 1N 40-350 diverts these transient currents towards earth while limiting the residual voltage presented to downstream equipment.
The eOVR range extends conventional surge protection with digital condition monitoring. Through its communication capabilities, the device can provide information including SPD lifetime, overvoltage and undervoltage conditions, ambient temperature, surge-event counts and earth-connection status. This information can be integrated into compatible ABB InSite energy-management infrastructure to support maintenance planning and improve visibility of electrical-system protection.
Typical Applications
- Residential electrical distribution boards.
- Commercial building electrical installations.
- Industrial low-voltage distribution systems.
- 230 V AC TT and TN-S electrical networks.
- Smart buildings and energy-management installations.
- Protection of sensitive electronic and automation equipment.
- Installations requiring remote SPD condition monitoring.
Technical Specifications
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| Remote Signal | No | |
|---|---|---|
| SPD Type | Type 2 | |
| Poles | 1-pole + N | |
| Earthing System | TN-S, TT | |
| Device Type | Surge protection device | |
| Series | eOVR Digital Surge Protection | |
| Order code | 2TAM901100R4501 | |
| Product type | Digital Type 2 surge protection device | |
| SPD classification | Type 2 / Class II | |
| Protection configuration | 1+1 | |
| Protection modes | L-N / N-PE | |
| Number of protected lines | 2 | |
| Network systems | TT / TN-S | |
| Nominal system voltage (Un) | 230 V AC | |
| Maximum continuous operating voltage (Uc) | 350 V AC | |
| Nominal discharge current In (L-N, 8/20 µs) | 20 kA | |
| Nominal discharge current In (N-PE, 8/20 µs) | 30 kA | |
| Maximum discharge current Imax (L-N, 8/20 µs) | 40 kA | |
| Maximum discharge current Imax (N-PE, 8/20 µs) | 80 kA | |
| Voltage protection level Up (L-N) | 1.5 kV | |
| Integrated thermal disconnector | Yes | |
| End-of-life indicator | Yes | |
| Communication | Modbus RTU | |
| Mounting | DIN rail | |
| Standard | IEC 61643-11 / EN 61643-11 |
Frequently Asked Questions
What is the ABB eOVR T2 1N 40-350 used for?
The ABB eOVR T2 1N 40-350 is a Type 2 digital surge protection device designed to protect 230 V AC low-voltage installations and connected equipment against transient overvoltages.
What is the maximum discharge current of the ABB eOVR T2 1N 40-350?
The SPD provides a maximum discharge current of 40 kA on the L-N protection path and 80 kA on the N-PE path, based on an 8/20 µs current waveform.
What is the maximum continuous operating voltage?
The ABB eOVR T2 1N 40-350 has a maximum continuous operating voltage (Uc) of 350 V AC.
Does the ABB eOVR T2 1N 40-350 provide digital monitoring?
Yes. The eOVR provides digital monitoring capabilities and Modbus RTU communication, enabling information about SPD condition and electrical parameters to be used by compatible monitoring and energy-management systems.
Which electrical networks can use the ABB eOVR T2 1N 40-350?
The device is designed for 230 V AC TT and TN-S networks and uses a 1+1 L-N / N-PE protection configuration.
Trusted ABB Digital Surge Protection
ABB eOVR digital surge protection devices combine transient overvoltage protection with connected condition monitoring, helping building and industrial electrical systems maintain visibility of SPD health, surge events and critical installation parameters.
