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4RB13313FC508K
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4RB13313FC508K
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SIEMENS
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4RB13313FC508K - 33 kVAR Power Capacitor, High-Voltage Application - Siemens

Cat No. 4RB13313FC508K
Category Capacitors
Stock In Stock
Condition Brand New, Sealed Packaging
Product Type Capacitors
Please contact us for the exact delivery timeline

In Stock — 16 Qty

Quantity Expected Delivery
16 Units 25 Business Days

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Technical Specification

SIEMENS 4RB13313FC508K Capacitors Technical Specification

Capacitors
Duty Ultra Heavy Duty
Phase 3
Rated Voltage 525Vac
Rating Kvar 33
Type Cylinderical Type

Product Details

Siemens 4RB13313FC508K - 33 kVAR Power Capacitor, High-Voltage Application. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

SIEMENS 4RB13313FC508K dimensions and weight

Dimensions (L × W × H)
Length 32 cm
Width 15.2 cm
Height 15.1 cm
Weight
Net Weight 3.3 kg

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

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Product Overview

Siemens 4RB13313FC508K - 33 kVAR Power Capacitor, High-Voltage Application. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Frequently Asked Questions for 4RB13313FC508K

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.
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 provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.
The SIEMENS 4RB13313FC508K is an industrial 3-phase power factor correction capacitor rated at 33.1 kVAr at 525V AC, 50 Hz. Built in a SIECAP Ultra Heavy Duty (UHD) Cylindrical Aluminum Can with an M12 bottom threaded mounting stud, it draws a nominal rated current of approximately 36.4 A. Engineered specifically for the Indian electrical environment, it complies rigorously with Indian Standards IS 13340 / IS 13341 as well as international standards IS/IEC 60831-1 and IS/IEC 60831-2. It carries BIS certification and is designed for continuous duty in ambient temperatures up to 55°C (Temperature Class D), accommodating ambient temperature spikes common in Indian panel enclosures. Electrihub India supplies this genuine SIEMENS unit with full manufacturer test certificates.
In Indian low voltage power distribution, the nominal line-to-line grid voltage is 415V at 50 Hz. The SIEMENS 4RB13313FC508K is engineered for extreme harmonic and severe voltage conditions in Indian heavy industries (steel rolling mills, induction furnaces, automotive welding lines, and foundry plants). Its high 525V dielectric withstand rating is specifically tailored for 14% (134 Hz) detuned reactors where terminal voltage across the capacitor elevates to 482V AC on a 415V grid. At 415V nominal system voltage, it delivers ~20.67 kVAr [33.1 × (415/525)²] when un-choked. When paired with a 14% detuned reactor (to eliminate 3rd harmonics) or 7% detuned reactor under high background voltage distortion, it operates with complete thermal stability and zero risk of voltage puncture. This elevated voltage ceiling protects the capacitor against continuous grid overvoltages and harmonic voltage distortion, preventing nuisance tripping, dielectric breakdown, and loss of capacitance.
The SIEMENS 4RB13313FC508K utilizes self-healing metallized polypropylene (MPP) film with heavy zinc-alloy edge-thickened metallization and wavy-cut geometry to minimize dielectric stress and optimize current carrying capability. For fail-safe protection, it incorporates an integrated 3-phase tear-off overpressure disconnector mechanism that mechanically disconnects all internal winding elements simultaneously in the event of internal fault gas pressure buildup, preventing case explosion or rupture. Furthermore, as mandated by Indian standards, it includes pre-fitted ceramic discharge resistor modules that safely bleed down residual voltage from peak to less than 50V within 60 seconds of de-energization, ensuring complete operator safety during panel maintenance.
Integrating the SIEMENS 4RB13313FC508K into Automatic Power Factor Correction (APFC) panels enables Indian industrial and commercial facilities to achieve near-unity power factor (0.98 to 0.999), directly eliminating severe DISCOM low-power-factor surcharges and maximizing kVAh billing incentives enforced by state utilities (such as MSEDCL, TANGEDCO, UPPCL, BESCOM, and Torrent Power). For reliable switching, each 4RB13313FC508K step must be controlled via dedicated capacitor-duty contactors with pre-charging damping resistors (such as Siemens 3TS series or Schneider TeSys LC1D•K) or thyristor switching modules for high-speed dynamic loads. APFC panel builders should ensure minimum 30 mm phase-to-phase separation, vertical mounting orientation, and adequate louvers or exhaust fans to keep internal enclosure temperatures within allowable limits.
Electrihub India (electrihub.in) is India's leading specialized B2B electrical e-commerce platform for genuine switchgear, power quality, and automation products. When sourcing the SIEMENS 4RB13313FC508K through Electrihub India, buyers receive 100% brand-new, factory-sealed products directly traceable to authorized manufacturer channels, backed by full manufacturer warranty. Electrihub India provides GST-compliant tax invoices enabling full input tax credit (ITC) claims, competitive wholesale B2B pricing, in-house technical sizing assistance for APFC systems, and pan-India express doorstep delivery across all industrial hubs including Delhi-NCR, Mumbai-Pune, Chennai, Bengaluru, Ahmedabad, Hyderabad, and Kolkata.

Reviews & Ratings

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Shawn Anderson Sep 18, 2026

Finding genuine SIEMENS capacitors online can sometimes be tricky, but Electrihub delivered the exact 4RB13313FC508K as cataloged. The dielectrics and overpressure disconnector mechanism meet all current industrial standards. Highly dependable platform for genuine automation components.

Thomas Young Sep 18, 2026

Delivered on time and packaged with utmost care. The 4RB13313FC508K SIEMENS capacitor arrived without a single scratch or bent lug. Electrihub provided real-time tracking details, making panel assembly scheduling on our end much smoother.

Stephen Scott Sep 18, 2026

Used this 4RB13313FC508K capacitor in a custom power factor correction retrofit for a printing facility. The form factor matched the existing panel brackets perfectly, saving our field technicians hours of metalwork. Electrihub's accurate technical specifications on the website ensured we got the right physical size on the first try.

Ethan Meyer Sep 18, 2026

Great commercial experience. Local vendors had a multi-week backorder on this SIEMENS 4RB13313FC508K capacitor, but Electrihub had units ready to ship on their .com site. Prompt support, fair bulk pricing, and top-tier industrial components delivered right to our receiving dock.

Karthik Gaikwad Sep 18, 2026

Industrial power capacitors are heavy and can easily get dented or suffer terminal damage during transit. Electrihub India packaged this SIEMENS 4RB13313FC508K with heavy corner cushioning, robust corrugated layering, and clear fragile markings. It reached our factory without a single scratch or dent.

Ajay Malhotra Sep 18, 2026

Installed this SIEMENS 4RB13313FC508K capacitor in our textile unit's main distribution board. Sourced directly via Electrihub India to replace older degraded capacitors. Electrical losses are minimal, and our plant power factor immediately improved. Outstanding electrical performance from SIEMENS.

Related Categories

Power Monitoring & PF Correction Active Harmonic Filter APFC Capacitors Detuned Filter Reactor Digital Meters Digital Meters Accessories Thyristor Switch Module

Tags

# 4RB13313FC508K # 33 kVAR # Power Capacitor # High-Voltage Application # Siemens # Siemens 4RB13313FC508K # Electrihub
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