Capacitor Banks

RSP Supply carries a full line of capacitor banks designed to improve power factor, stabilize voltage, and increase overall efficiency in industrial and utility power systems. These systems are vital in managing reactive power and optimizing energy use across electrical networks. Capacitor banks are made up of multiple capacitor units that can be connected manually or automatically to match changing load conditions. In industrial and utility environments, they are used for low- and medium-voltage applications, typically installed in substations or at key points within facility power systems. By compensating for reactive power and stabilizing voltage levels, capacitor banks enhance system performance, reduce transmission losses, and improve energy efficiency.

These assemblies are engineered to handle continuous operation under demanding conditions. Their modular design allows for scalable configurations and easy maintenance. In properly designed systems, capacitor banks contribute to smoother electrical operation, reduced strain on transformers, and lower overall utility costs, making them essential to maintaining balanced, stable, and efficient electrical distribution.

Found 1298 items
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Found 1298 items
Manufacturer
Eaton (849)
MTE (145)
Phoenix Contact (4)
TCI (300)
Component
Capacitor (95)
Capacitor Bank (909)
Capacitor Cell (36)
Capacitor Panel (54)
Filter (185)
Nest Assembly Capacitor (13)
Replacement Capacitor (4)
Power Supply Voltage Output
24 VDC (1)
48 VDC (1)
Power Supply Watts
960 Watt (1)
Series
Autovar (123)
Autovar 300 (68)
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PF Guard (300)
T800 (4)
Unipak (217)
Univar XV (169)
Phase
Single Phase (4)
Three Phase (807)
Power Supply Voltage Input
440VAC (1)
Rated Current
1.80 Amp (2)
2.4 Amp (4)
2.40 Amp (2)
3 Amp (2)
3.6 Amp (1)
3.60 Amp (1)
4.8 Amp (2)
4.9 Amp (2)
5 Amp (2)
6 Amp (4)
Power Supply Mounting
Din Rail Mount (1)
Reactive Power
1 Kvar (2)
1.5 Kvar (3)
1.8 Kvar (2)
2 Kvar (3)
2 X 25 Kvar (1)
2 X 50 Kvar (12)
2.5 Kvar (4)
3 Kvar (6)
4 Kvar (5)
5 Kvar (8)
Line
QUINT (1)
Power Supply Housing
Enclosed (1)
Voltage Rating
120 VAC (4)
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415 VAC (2)
415 Volt (8)
450 VAC (1)
480 VAC (631)
480 Volt (13)
500 VAC (2)
530 VAC (2)
Power Supply Number of Outputs
Single Output (1)
Enclosure
Double-Door (5)
NEMA 1 (539)
NEMA 3R (499)
NEMA 12 (169)
Single-Door (25)
UL Type 1 (150)
UL Type 12 (150)
Frame Size
A1 (34)
A2 (28)
B1 (61)
C1 (41)
C2 (20)
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J (67)
KK (21)
KK + KK (3)
Input Protection
Circuit Breaker (83)
Fused Disconnect Switch (84)
Fused Input (48)
Terminal Block (84)
kVAR Steps
50 Kvar Steps (96)
50/25 Kvar Steps (96)
80 Kvar Steps (18)
80/40 Kvar Steps (18)
100 Kvar Steps (36)
100/50 Kvar Steps (36)
Material
12 Gauge Steel (68)
12 Gauge Steel W/ Baked-On Enamel (105)
14 Gauge Steel W/ Baked-On Enamel (169)
14 Gauge Steel W/ Powder Coat Finish (217)
Mounting
Floor (397)
Wall (67)
Number of Steps
3 Steps (24)
4 Steps (48)
5 Steps (84)
6 Steps (102)
7 Steps (42)
Power Supply Amperage Output
20 Amp (1)
Power Supply Amperage Output Range
16-20 Amp (1)
Power Supply Voltage Input Range
22.5 VDC - 30 VDC (2)
24 VDC (1)
320 VAC - 575 VAC (1)
Normally In Stock
Phoenix Contact 2320827 Power Supply QUINT-PS/3AC/48DC/20
Free U.S Ground shipping
$1282.86
$1069.05
Normally In Stock
Eaton 2043PMURF Unipak Capacitor Bank - 20 kVAR
Free U.S Ground shipping
$983.45
$819.54
Normally In Stock
Eaton 1543PCRMB - capacitor cell, 480 VAC, 15 kVAR, 18 Amp, Three Phase
Free U.S Ground shipping
$266.33
$221.94
Normally In Stock
Eaton 1543PMURF Unipak Capacitor Bank - 15 kVAR
Free U.S Ground shipping
$944.47
$787.06
Normally In Stock
Eaton 823PMURN Unipak Capacitor Bank - 8 kVAR
Free U.S Ground shipping
$719.09
$599.24
Normally In Stock
MTE CAP-315HIC-1 Capacitor CAP. 150uF 480VAC 65A
Free U.S Ground shipping
$818.92
$682.43
Normally In Stock
MTE CAP-348TP-1 Capacitor CAP-348TP-1 480V 38A
Free U.S Ground shipping
$1131.17
$942.64
Normally In Stock
Eaton 7563HURF Unipak Capacitor Bank - 75 kVAR
Free U.S Ground shipping
$4742.80
$3952.33
Normally In Stock
Eaton 75432HMURFY Unipak Filter - 75 kVAR
$18965.15
$15804.29
Normally In Stock
Eaton 4563HURF Unipak Capacitor Bank - 45 kVAR
$2330.27
$1941.89

FAQs

Q: What are capacitor banks used for?
Capacitor banks are used to improve power factor, stabilize voltage, and reduce reactive power demand in electrical systems, enhancing energy efficiency and reducing power losses.

Q: Where are capacitor banks typically installed?
They are commonly installed in substations, power distribution panels, or industrial facilities at points in the system where voltage support or reactive power compensation is needed.

Q: What is the difference between fixed and automatic capacitor banks?
Fixed capacitor banks remain connected continuously, while automatic capacitor banks engage or disengage in response to load variations, maintaining optimal system performance under changing conditions.

Q: How do capacitor banks improve power factor?
Capacitor banks offset the lagging reactive power caused by inductive loads, such as motors and transformers, thereby improving the power factor and reducing demand charges from utilities.

Q: What voltage levels can capacitor banks support?
Capacitor banks are available for low-, medium-, and high-voltage systems, making them suitable for use in industrial facilities, commercial operations, and utility-scale power networks.

Why Buy Capacitors from RSP Supply

RSP Supply offers high-quality capacitor banks from trusted manufacturers, engineered for efficiency, reliability, and long service life. Our knowledgeable team provides fast support, competitive pricing, and same-day shipping on most products to keep your power systems running at peak performance.