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1SBN050100R1000 ABB RC5-1/50 Surge Suppressor Module for Contactors
ABB RC5-1/50 is a compact RC surge suppressor for 24–50 V AC, 50/60 Hz conventional contactor coils, designed to limit switching overvoltages and high-frequency interference.
£14.57
Why Choose the ABB RC5-1/50 Surge Suppressor?
The ABB RC5-1/50, order code 1SBN050100R1000, is a compact RC surge suppressor for conventional contactor coils. It is designed to reduce the maximum overvoltage peak generated when an AC-operated contactor coil is switched off, helping protect connected control equipment.
Opening an inductive contactor coil can produce a transient voltage significantly higher than the normal control voltage. The RC5-1/50 uses a resistor-capacitor suppression network to damp this transient and limit high-frequency voltage oscillations, supporting reliable operation in industrial control systems.
With a rated control circuit voltage of 24–50 V AC at 50/60 Hz, the RC5-1/50 is suitable for compatible ABB conventional contactors operating within this voltage range. Its compact 30.25 × 10.5 × 32.4 mm dimensions allow it to be incorporated into space-conscious control-panel assemblies.
Key Advantages
- Designed to limit contactor coil switching overvoltages.
- 24–50 V AC operating range for compatible control circuits.
- RC suppression technology helps damp high-frequency voltage oscillations.
- Helps protect sensitive components connected to the control circuit.
- Compact construction supports space-efficient panel installations.
- Genuine ABB accessory for industrial contactor applications.
Key Features
- ABB RC5 series surge suppressor.
- RC-type suppression network.
- 24–50 V AC rated control circuit voltage.
- 50/60 Hz rated frequency.
- Designed for AC-operated conventional contactor coils.
- Reduces the maximum overvoltage peak during coil switch-off.
- Limits high-frequency components of the transient voltage.
- Compact contactor accessory weighing approximately 0.012 kg.
Reliable Surge Protection for Contactor Control Circuits
Contactor coils are inductive loads that can generate a substantial voltage transient when their energising circuit is interrupted. This transient may contribute to electrical interference and place additional stress on switching devices and electronic control equipment.
The ABB RC5-1/50 provides resistor-capacitor suppression for compatible AC contactor coils. By damping the switching transient close to its source, it helps improve control-circuit reliability and reduce high-frequency interference within industrial automation installations.
Typical Applications
- Industrial contactor control circuits.
- Motor starters and motor-control panels.
- Machine automation systems.
- PLC-controlled contactor assemblies.
- Manufacturing and process-control equipment.
- Electrical distribution and control cabinets.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Manufacturer | ABB | |
| Series | RC5 | |
| Model | RC5-1/50 | |
| Order code | 1SBN050100R1000 | |
| Product type | Contactor coil surge suppressor | |
| Suppression type | RC network | |
| Rated control circuit voltage | 24–50 V AC | |
| Frequency | 50 / 60 Hz | |
| Dimensions (W × H × D) | 30.25 × 10.5 × 32.4 mm | |
| Weight | 0.012 kg | |
| EAN | 3471522121240 |
Frequently Asked Questions
What is the ABB RC5-1/50 used for?
The RC5-1/50 is used to suppress the overvoltage transient generated when an AC-operated conventional contactor coil is switched off.
What control voltage is supported by this surge suppressor?
The ABB RC5-1/50 is rated for contactor control circuits operating at 24–50 V AC.
What suppression technology does the RC5-1/50 use?
It uses an RC resistor-capacitor network to reduce the overvoltage peak and damp high-frequency voltage oscillations.
Is the ABB RC5-1/50 intended for AC or DC coils?
This specific surge suppressor is designed for AC-operated contactor coils at a rated frequency of 50/60 Hz.
Why is contactor coil surge suppression important?
Surge suppression helps reduce electrical interference and limits the transient voltage stress placed on switching devices and other equipment connected to the control circuit.
Trusted ABB Control-Circuit Protection
ABB contactor accessories are widely used in industrial control panels and automation systems to support dependable switching, effective transient suppression and reliable control-circuit operation.
