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4RB11503EE508K
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4RB11503EE508K
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SIEMENS
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4RB11503EE508K - 15 kVAR Power Capacitor, 440V AC, 50 Hz, 3-Phase - Siemens

Cat No. 4RB11503EE508K
Category Capacitors
Stock In Stock
Condition Brand New, Sealed Packaging
Product Type Capacitors
Please contact us for the exact delivery timeline

In Stock — 19 Qty

Quantity Expected Delivery
19 Units 25 Business Days

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Technical Specification

SIEMENS 4RB11503EE508K Capacitors Technical Specification

Capacitors
Duty Super Heavy Duty
Phase 3
Rated Voltage 440Vac
Rating Kvar 15
Type Cylinderical Type

Product Details

Siemens 4RB11503EE508K - 15 kVAR Power Capacitor, 440V AC, 50 Hz, 3-Phase. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

SIEMENS 4RB11503EE508K dimensions and weight

Dimensions (L × W × H)
Length 30.8 cm
Width 9.9 cm
Height 9.9 cm
Weight
Net Weight 1.5 kg

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

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Product Overview

Siemens 4RB11503EE508K - 15 kVAR Power Capacitor, 440V AC, 50 Hz, 3-Phase. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Frequently Asked Questions for 4RB11503EE508K

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 4RB11503EE508K is an industrial 3-phase power factor correction capacitor rated at 15.0 kVAr at 440V AC, 50 Hz. Built in a SIECAP Super Heavy Duty (SHD) Cylindrical Aluminum Can with an M12 bottom threaded mounting stud, it draws a nominal rated current of approximately 19.68 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 4RB11503EE508K is designed for 415V, 50 Hz industrial power distribution networks across India requiring robust power factor correction in standard and moderately polluted commercial and industrial facilities. The 440V rating provides a reliable safety buffer against Indian grid voltage swells up to 440V. On the Indian standard nominal grid of 415V 50 Hz, it delivers an effective output of ~13.36 kVAr [15 × (415/440)²]. It can be operated as a standalone stage or paired with light 5.67% or 7% detuned reactors for loads with moderate harmonic distortion (THD-V < 5%). 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 4RB11503EE508K 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 4RB11503EE508K 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 4RB11503EE508K 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 4RB11503EE508K 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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Billy Price Sep 18, 2026

We verified the serial numbers and factory markings on the 4RB11503EE508K upon delivery. It is 100% genuine SIEMENS hardware. Electrihub.com made international procurement easy, providing commercial invoices, packing lists, and proper compliance certificates for our engineering files.

Felix Kelly Sep 18, 2026

International shipment of industrial switchgear can be challenging, but Electrihub handled this 4RB11503EE508K order seamlessly. The package arrived two days ahead of schedule, completely sealed with corner protectors. Terminals and discharge resistors were intact and ready for immediate mounting.

Tanmay Jadhav Sep 18, 2026

We ordered the 4RB11503EE508K capacitor from Electrihub India for our machine shop in an industrial area. It handles continuous fluctuating inductive loads without heating up. Our reactive power charges have vanished on the latest electricity bill. Very happy with the purchase from Electrihub.in.

Soumen Bhattacharya Sep 18, 2026

Ordered the 4RB11503EE508K capacitor via Electrihub India. Transit across states took barely three days, and live tracking was shared immediately upon dispatch. The package was sealed tight and completely weather-protected. Top-class logistics handling.

Subhash More Sep 18, 2026

Electrihub India has streamlined how we purchase factory electrical spares. Sourced this SIEMENS 4RB11503EE508K capacitor at very competitive rates compared to offline distributors. Transparent pricing, no hidden delivery surcharges, and swift dispatch.

Related Categories

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

Tags

# 4RB11503EE508K # 15 kVAR # Power Capacitor # 440V AC # 50 Hz # 3-Phase # Siemens # Siemens 4RB11503EE508K # Electrihub
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