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1SBN050010R1002 ABB RV5/250 Surge Suppressor Module for Contactors
ABB RV5/250 is a compact unpolarised varistor surge suppressor for 110–250 V AC/DC conventional contactor coils, designed to limit switching overvoltages and reduce high-frequency electrical interference.
£13.46
Why Choose the ABB RV5/250 Surge Suppressor?
The ABB RV5/250, order code 1SBN050010R1002, is a compact varistor surge suppressor designed to protect contactor control circuits from transient overvoltages. It reduces voltage peaks generated when an energised contactor coil is switched off, helping protect electronic devices, insulation and sensitive control components.
Switching an inductive contactor coil releases stored electromagnetic energy that can produce high-voltage surges and electrical interference. The RV5/250 limits the maximum overvoltage peak and attenuates high-frequency pre-damping oscillations, supporting dependable operation in industrial automation and motor-control systems.
Designed for conventional contactors with a rated control circuit voltage of 110–250 V AC/DC, the RV5/250 supports AC operation at 50/60 Hz as well as DC control circuits. Its unpolarised varistor design and clip-on mounting enable straightforward integration with compatible ABB contactors.
Key Advantages
- Compact varistor surge suppressor for contactor coils.
- 110–250 V AC/DC operating range supports AC and DC control circuits.
- Reduces voltage peaks produced when contactor coils are de-energised.
- Provides high energy absorption and effective transient damping.
- Unpolarised design simplifies connection in compatible circuits.
- Clip-on mounting does not change the overall dimensions of the host device.
Key Features
- ABB RV5 surge suppressor series.
- Varistor suppression technology.
- 110–250 V AC control-voltage range at 50/60 Hz.
- 110–250 V DC control-voltage range.
- Limits switching overvoltage peaks.
- Attenuates high-frequency pre-damping voltage oscillations.
- Clips onto the top or side of compatible contactors and contactor relays.
- Compact accessory for industrial control installations.
Reliable Suppression for Contactor Control Circuits
Contactor coils are inductive loads that store electromagnetic energy while energised. When the coil circuit opens, this energy can produce a steep transient voltage capable of disrupting electronic controls, accelerating insulation wear or damaging sensitive circuit components.
The ABB RV5/250 uses a varistor connected across the contactor coil to restrict the resulting voltage peak. Its high energy absorption, effective damping and compatibility with both AC and DC control supplies make it suitable for industrial automation, motor control and power-switching equipment.
Typical Applications
- Industrial contactor coil protection.
- Motor-control centres and starter panels.
- PLC-controlled contactor circuits.
- Industrial machinery and automation systems.
- Power distribution and load-switching panels.
- Control circuits containing surge-sensitive electronic equipment.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Manufacturer | ABB | |
| Series | RV5 | |
| Model | RV5/250 | |
| Order code | 1SBN050010R1002 | |
| Product type | Contactor coil surge suppressor | |
| Suppression component | Varistor | |
| Rated control circuit voltage | 110–250 V AC/DC | |
| AC control frequency | 50 / 60 Hz | |
| Polarity | Unpolarised | |
| Mounting type | Clip-on top or side mounting | |
| Operating temperature | −20 to +70 °C | |
| Dimensions (W × H × D) | 30.25 × 10.5 × 32.4 mm | |
| Weight | 0.015 kg | |
| EAN | 3471522121349 |
Frequently Asked Questions
What is the ABB RV5/250 used for?
The RV5/250 suppresses transient overvoltages generated when a conventional contactor coil is switched off, helping protect control-system components and reduce electrical interference.
What voltage range does the RV5/250 support?
The surge suppressor is designed for contactor control circuits rated from 110–250 V AC/DC.
Can the ABB RV5/250 be used with AC and DC coils?
Yes. The RV5/250 supports both 110–250 V AC at 50/60 Hz and 110–250 V DC contactor control circuits.
What suppression technology does the RV5/250 use?
The RV5/250 uses an unpolarised varistor to limit the maximum overvoltage peak and attenuate high-frequency oscillations produced during coil switching.
How is the ABB RV5/250 installed?
The suppressor clips onto the top or side of a compatible ABB contactor or contactor relay without changing the host device’s overall dimensions.
Trusted ABB Contactor Protection
ABB RV5 surge suppressors provide compact and dependable transient-voltage control for contactor coils, helping protect industrial automation equipment and improve control-system reliability.
