How to Size a Contactor for Capacitor Bank Switching: Complete Engineering Guide
Size AC-6b contactors for capacitor bank switching correctly: avoid weld failures with proven IEC 60947-4-1 sizing methods and kvar checks. Shop at Stoklink.
The Schneider Electric BLRCS030A036B44 is an EasyLogic power factor correction capacitor rated 3 kvar at 440 V, 50 Hz (3.6 kvar at 60 Hz). Built for standard operating conditions with network harmonic content up to 10 %, it corrects the reactive power drawn by stable, largely linear loads, cutting the current an installation pulls from the supply and avoiding low-power-factor penalties on the utility bill.
At 3 kvar and 440 V, the BLRCS030A036B44 fits a step within an automatic power factor correction bank sized for stable, largely linear loads. Move to the next EasyLogic step in the 440 V family as the compensated reactive load grows, or down a step for finer switching granularity. Because continuous overcurrent capacity is limited to 1.5 x In, keep this variant on networks where harmonic content stays at or below 10%; on busbars with higher distortion from variable-speed drives or rectifiers, the VarPlus Can HDuty range with its 1.8 x In rating is the right choice instead.
| Range | EasyLogic |
|---|---|
| Product or component type | Standard duty capacitor |
| Product name | EasyLogic PFC Capacitor |
| Network frequency | 50/60 Hz |
| Series name | EasyLogic PFC Capacitor |
| Network harmonic content | <= 10 % |
| Electrical parameters | 3 kvar 440 V 50 Hz, 3.6 kvar 440 V 60 Hz |
| Maximum permissible voltage | 1.1 x Un (8 hours over 24 hours) |
| continuous overcurrent capacity | 1.5 x In |
| Rated voltage | 440 V AC 50/60 Hz |
| Dielectric losses | < 0.2 W/kvar |
|---|---|
| Power losses | < 0.5 W/kVAr |
| Capacitance tolerance | - 5 % to 10 % |
| Voltage test | 2.15 x Un AC between terminals for 10 s, <= 660 V - 3 kV AC between terminal and container for 10 s, >= 660 V - 6 kV AC between terminal and container for 10 s |
| Inrush current | 200 x In |
| Maximum switching operation per year | 5000 |
| Service life in hours | 100000 h |
| Dielectric material | Metallized polypropylene film with Zn/Al alloy, |
| Impregnation material | Non-PCB soft PUR resin, Biodegradable |
| Type of installation | Indoor installation |
| Connections - terminals | Double Faston terminal |
| Mounting mode | Vertical |
| Diameter | 50 mm |
| Height | 245 mm |
| Net weight | 0.7 kg |
| Standards | IEC 60831-1, IEC 60831-2 |
|---|---|
| IP degree of protection | IP20 |
| Operating altitude | 2000 m |
| Temperature class | D |
| Ambient air temperature for operation | -25…55 °C |
| Relative humidity | 95 % |
| Part number | BLRCS030A036B44 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 11.000 cm |
| Package 1 Width | 12.000 cm |
| Package 1 Length | 28.500 cm |
| Package 1 Weight | 702.000 g |
| Unit Type of Package 2 | S04 |
| Number of Units in Package 2 | 15 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 40.000 cm |
| Package 2 Length | 60.000 cm |
| Package 2 Weight | 11.181 kg |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 60 |
| Package 3 Height | 75.000 cm |
| Package 3 Width | 60.000 cm |
| Package 3 Length | 80.000 cm |
| Package 3 Weight | 52.721 kg |
| Shipping weight | 0.7 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated operational voltage of BLRCS030A036B44 is 440 V AC.
The tariff (HS) code on file for BLRCS030A036B44 is 853210.
BLRCS030A036B44 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Size AC-6b contactors for capacitor bank switching correctly: avoid weld failures with proven IEC 60947-4-1 sizing methods and kvar checks. Shop at Stoklink.