Single-Phase Shunt Reactors Selection Guide: Technical Criteria & Application Standards
Single-Phase Shunt Reactors selection guide: technical parameters, mounting and compliance standards, and Tibcon, Entes comparison.
A single-phase shunt reactor is a 230 V coil, also called a monophase shunt reactor, that is connected between phase and neutral and balances only the capacitive reactive power in the phase it is connected to. It is used to correct each phase according to its own capacitive load in facilities such as stores, offices and housing complexes, where LED lighting, single-phase UPS units and electronic devices are not evenly distributed across the phases. The category includes Tibcon monophase and Entes ENT.SRS1 series 230 V 50 Hz reactors; ratings such as 0.25 kVAr, 0.5 kVAr, 1.5 kVAr, 5 kVAr and 10 kVAr are offered. Choose the reactor power by the capacitive reactive power measured in the relevant phase, the power steps by the relay's step plan, the rated voltage and frequency by the grid, and the number of reactors by the free step outputs on the relay. For single-phase steps to be managed, the reactive power control relay in the panel must be of a type that measures the phases separately and can connect single-phase shunt reactors. A shunt reactor is not a harmonic filter reactor connected in series with a capacitor to protect the step from harmonic resonance; it is connected in parallel with the grid and balances capacitive power. The Single-Phase Shunt Reactors category on Welibaba includes 25 active models from leading manufacturers such as Tibcon, Entes.
Key Technical Parameters for Selecting Single-Phase Shunt Reactors
To specify the right Single-Phase Shunt Reactors model for your panel or installation, verify the following parameters against your engineering schedule:
| Parameter | Typical Catalog Values | Verification Note |
|---|---|---|
| Voltage | 230 V | Verify against project schedule and load calculation |
| Standards | EN 61558 2-20, EN 61558-1, EN 61558 2-20, EN 60289 ve EN60076-6 | Verify against project schedule and load calculation |
| Inductance | 10, 3 mH, 102 mH, 11 | Verify against project schedule and load calculation |
| Thermal Protection | 120C (NC kontak), Aşırı yükten koruyan termik koruma | Verify against project schedule and load calculation |
Installation, Compatibility, and Commissioning Checklist
- Electrical & Mechanical Matching: Confirm that rated voltage, current capacity, and mounting dimensions align with the upstream and downstream components in Shunt Reactors.
- Environmental & Enclosure Rating: Check IP protection class, housing material, and terminal capacity for dusty, humid, or high-vibration industrial environments.
- Related Product Groups: If your application calls for a different form factor or rating, compare sibling categories such as Three-Phase Shunt Reactors.
Frequently Asked Questions
What is the first parameter to check when selecting Single-Phase Shunt Reactors?
Start by confirming the circuit's rated electrical values and physical mounting dimensions, then use the technical attribute filters on the Single-Phase Shunt Reactors page to narrow down compatible series.
Which Single-Phase Shunt Reactors brands are available on Welibaba?
Welibaba currently stocks 25 active models in this category from manufacturers including Tibcon, Entes, complete with verified specifications and unit pricing.
How can I compare Single-Phase Shunt Reactors models by manufacturer part number?
You can search directly by manufacturer SKU/order code or use the category filter panel to compare equivalent models across brands side by side.