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7TCA085400R0361 ABB OVR SL15 15 V Data and Signal Surge Protection Device
ABB 7TCA085400R0361 OVR SL15 is a slim DIN-rail data and signal surge protection device for 15 V two-wire circuits with 16.7 V DC maximum working voltage, 45 MHz bandwidth and up to 10 kA surge-current capability per pair.
£120.30
Why Choose the ABB OVR SL15 Data and Signal Surge Protection Device?
The ABB OVR SL15, order code 7TCA085400R0361, is a compact data and signal line surge protection device (SPD) designed to protect sensitive electronic equipment connected to two-wire signal, control and communication circuits. Part of the ABB OVR SL Series, it provides full-mode transient protection in an ultra-slim DIN-rail-mounted format.
Designed for circuits with a nominal voltage of 15 V, the OVR SL15 has a maximum continuous working voltage (Uc) of 16.7 V DC or 11 V AC RMS. Its high bandwidth and low in-line resistance make it suitable for signal and data applications where effective surge suppression must be achieved without unnecessarily degrading normal communications.
The OVR SL15 provides a maximum surge-current capability of 5 kA per signal wire and 10 kA per pair for an 8/20 µs waveform, together with D1 lightning-current withstand capability of 1.25 kA per signal wire and 2.5 kA per pair using a 10/350 µs waveform. Its 7 mm-wide housing makes efficient use of valuable DIN-rail space in control and communications cabinets.
Key Advantages
- Purpose-designed surge protection for two-wire data and signal circuits.
- 15 V nominal voltage for low-voltage signalling applications.
- Maximum working voltage of 16.7 V DC / 11 V AC RMS.
- Handles up to 5 kA per signal wire and 10 kA per pair with an 8/20 µs surge waveform.
- Provides full-mode protection between signal conductors and earth.
- Fast transient response of less than 10 ns.
- High 45 MHz bandwidth supports high-frequency data and signal transmission.
- Ultra-slim 7 mm DIN-rail housing minimises panel space requirements.
Key Features
- ABB OVR SL15 data and signal SPD.
- Designed for two-wire signal lines.
- 15 V nominal voltage.
- 16.7 V DC maximum working voltage.
- 11 V AC RMS maximum working voltage.
- 750 mA signal current rating.
- 1.0 Ω in-line resistance per line.
- 45 MHz bandwidth in a 50 Ω system.
- 38.4 V C2 let-through voltage.
- 29.4 V C1 let-through voltage.
- 26.8 V B2 let-through voltage.
- Operating temperature range of -40 to +80 °C.
- DIN-rail mounting with earth connection through the DIN rail or dedicated earth terminal.
Reliable Surge Protection for Data and Signal Circuits
Long signal and communication cables can provide a path for transient overvoltages caused by lightning activity, electromagnetic coupling and electrical switching events. These transients can damage sensitive interfaces, controllers, instrumentation and communication equipment even when the main electrical power supply has separate surge protection.
The ABB OVR SL15 is installed in series with the protected two-wire circuit and provides protection between the conductors as well as between the conductors and earth. Its low resistance, high bandwidth and fast response make it suitable for protecting signal circuits while maintaining normal data transmission, and the screen terminal allows a cable screen to be conveniently connected to earth where required.
Typical Applications
- Two-wire data and signal circuits.
- Process control and industrial instrumentation.
- High-speed digital communication equipment.
- PLC and automation signal interfaces.
- Monitoring and measurement circuits.
- Systems incorporating long external signal cables.
- Sensitive electronic equipment requiring low-voltage signal-line surge protection.
Technical Specifications
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| Remote Signal | No | |
|---|---|---|
| Device Type | Surge protection device | |
| Impulse Current Iimp (kA) | 1.25 kA | |
| Series | OVR SL | |
| Order code | 7TCA085400R0361 | |
| Product type | Data and signal surge protection device | |
| Protected circuit | Two-wire signal line | |
| Nominal voltage | 15 V | |
| Maximum working voltage Uc (DC) | 16.7 V | |
| Maximum working voltage Uc (AC RMS) | 11 V | |
| Signal current rating | 750 mA | |
| In-line resistance per line | 1.0 Ω ±10% | |
| Bandwidth (-3 dB, 50 Ω system) | 45 MHz | |
| C2 let-through voltage Up | 38.4 V | |
| C1 let-through voltage Up | 29.4 V | |
| B2 let-through voltage Up | 26.8 V | |
| Maximum surge current (8/20 µs), per signal wire | 5 kA | |
| Maximum surge current (8/20 µs), per pair | 10 kA | |
| D1 impulse current (10/350 µs), per signal wire | 1.25 kA | |
| D1 impulse current (10/350 µs), per pair | 2.5 kA | |
| Response time | <10 ns | |
| Connection type | Screw terminal | |
| Maximum terminal torque | 0.8 Nm | |
| Maximum stranded conductor size | 4 mm² | |
| Earth connection | DIN rail or 4 mm² earth terminal | |
| Case material | Flame-retardant polymer, UL 94 V-0 | |
| Operating temperature | -40 to +80 °C | |
| Dimensions (L × W × H) | 106.5 × 7 × 104.6 mm | |
| Weight | approx. 0.08 kg | |
| Standard | BS EN / EN / IEC 61643-21 |
Frequently Asked Questions
What is the ABB OVR SL15 used for?
The ABB OVR SL15 is a data and signal surge protection device designed to protect two-wire low-voltage signal and communication circuits against damaging transient overvoltages.
What voltage is the ABB OVR SL15 designed for?
The OVR SL15 has a nominal voltage of 15 V and maximum working voltages of 16.7 V DC and 11 V AC RMS.
What surge current can the ABB OVR SL15 handle?
For an 8/20 µs waveform, the OVR SL15 can handle up to 5 kA per signal wire or 10 kA per pair. It also provides D1 10/350 µs capability of 1.25 kA per wire and 2.5 kA per pair.
What bandwidth does the OVR SL15 support?
The ABB OVR SL15 has a bandwidth of approximately 45 MHz in a 50 Ω system, making it suitable for signal and data circuits requiring high-frequency transmission.
How is the ABB OVR SL15 installed?
The OVR SL15 is designed for DIN-rail mounting and uses screw terminals for the signal conductors, with its earth connection provided through the DIN rail or a dedicated earth terminal.
Trusted ABB Data and Signal Protection
ABB OVR SL surge protection devices provide compact, high-speed protection for sensitive data, control and signal circuits, helping reduce the risk of equipment damage and system disruption caused by lightning-induced and switching transients.
