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51209 - Varlogic PF Controller RT8 step 440V - Schneider Electric

Cat No.	51209
Category	APFC
Stock	In Stock
Condition	Brand New, Sealed Packaging

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In Stock — 46 Qty

$291.87

Quantity	Expected Delivery
46 Units	25 Business Days

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Product Details

Schneider Electric 51209 - The Varlogic controllers permanently monitor the reactive power of the installation,This device also control the connection and disconnection of capacitor steps in order to obtain the targeted power factor,In case of overvoltage, low power factor or over compensation an alarm relay will activate,The user can parameter the power factor from 0.85 induct to 1,New control algorithm designed to reduce the number of switching operations and quickly attain the targeted power factor,This version include 8 step output contacts for a range of compensations,Output contacts are calibrated for 3 amps load at 250 V or 1 amp load at 400 V,The power supply allow voltage input from 320 to 460 V,The dimensions of the controller are 143 mm in width, 143 mm in height, 67 mm in depth for a product weight of 800 g,Cerified for Electromagnetic Compatibility with IEC 61326, IEC 61000-6-2 and IEC 61000-6-4,A 139 mm by 139 mm swithcboard cut-out will be necessary for the flush panel mounting. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

Schneider 51209 dimensions and weight

Dimensions (L × W × H)

Length 23 cm

Width 18.7 cm

Height 8.5 cm

Weight

Net Weight 1.05 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Frequently Asked Questions for 51209

The Schneider APFC Relay model 51209 is designed to automatically monitor and improve the power factor of electrical installations. It continuously measures reactive power demand and switches capacitor banks on or off to maintain an optimal power factor, helping reduce energy losses, avoid penalties, and improve system efficiency.

The APFC Relay 51209 uses an intelligent switching algorithm that evaluates kvar requirements, step sequencing, voltage levels, and harmonic conditions. It ensures balanced capacitor duty cycles, prevents step hunting, and protects capacitors from overloading or frequent switching.

Model 51209 includes multiple protection features such as over-voltage protection, under-voltage protection, excessive THD detection, capacitor overload detection, relay malfunction indication, and temperature protection to ensure stable APFC panel operation.

Yes, the model 51209 supports multi-step capacitor banks with configurable switching sequences, step size programming, and kvar calibration. It can control multiple capacitor stages depending on the APFC panel design.

Model 51209 requires proper CT connection, correct CT ratio configuration, phase alignment, auxiliary supply, and panel ventilation. Ensuring accurate wiring and CT polarity is essential for correct kvar measurement and switching performance.

The price of the Schneider APFC Relay 51209 varies based on availability, configuration, and market conditions. For the latest and best price, bulk order discounts, and GST-inclusive rates, you can check ElectriHub APFC relay section or contact our sales team.

You can download the Schneider APFC Relay 51209 technical datasheet from ElectriHub APFC Relay product page. The datasheet includes detailed specifications such as voltage rating, switching stages, features, protections, wiring diagrams, and installation guidelines.

Every Schneider 51209 APFC purchased from Electrihub is 100% genuine, brand new, and supplied in original sealed packaging ensuring top performance and reliability. We source all products from trusted Schneider supply channels, so you can buy with complete confidence.
Electrihub offers competitive pricing, fast delivery, and expert support to help you select the right APFC for your application. Whether for industrial automation, electrical panels, or control systems, you can rely on Electrihub for authentic Schneider products that deliver consistent quality and safety.

Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.

Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.

The price of Schneider 51209 APFC depends on specifications, availability, and market conditions. You can check the latest GST-inclusive price on Electrihub India, which provides genuine products, transparent billing, and PAN India delivery.

Reviews & Ratings

4.5

6 reviews

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Siddharth Saxena Apr 21, 2026

Standardized our recent distribution board installation with the 51209. Auxiliary contacts are robust and provide reliable feedback for our PLC logic. RAS Electrihub is a reliable vendor for high-end automation spares. An essential component for maintaining system uptime.

Rajesh Kumar Apr 21, 2026

After evaluating several options, the 51209 stood out for our industrial requirements. Thermal dissipation on this unit is excellent for compact panel boards. Very impressed with the technical range available at RAS Electrihub. Perfect balance of price and technical reliability.

Emily S Nov 5, 2025

This Schneider APFC relay manages our capacitor switching intelligently. Interface is user-friendly and correction is accurate every cycle.

Amanda L Nov 5, 2025

Dependable relay, improves energy efficiency.

Divya B Nov 5, 2025

Implemented the 51209 relay to optimize reactive power compensation. Auto tuning finds the best settings and logs all events. Integration with our SCADA was quick. Fault tolerance and robust design make it a favorite for plant automation teams.

Vikas M Nov 5, 2025

Perfect control for capacitor banks, very satisfied.

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51209 - Varlogic PF Controller RT8 step 440V - Schneider Electric

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