JavaScript is disabled in your browser which limits the functionality of the website. Please enable it to view page content and work with all website features

Condensatori per Avviamento Motori

Motor start capacitors: purpose and typical uses

Motor start capacitors (and, where required, run capacitors) are mainly used with single-phase induction motors to create the phase shift needed for starting torque and stable operation. Common applications include pumps, compressors, fans, small power tools and light machinery.

Types: start vs run

Start capacitors: designed to provide high starting torque; in many circuits they are connected only during start-up (via relay or centrifugal switch).
Run capacitors: intended for continuous operation while the motor is running, with specific thermal and reliability requirements.

How to select the right capacitor

Selection should be based on the motor nameplate, wiring diagram and application conditions. For replacements, always match the ratings printed on the original component.

Capacitance (µF): must match the required value. Tolerance and stability affect performance.
Rated voltage (VAC): choose a suitable rating (e.g. 400–450 VAC or per specification). Do not replace with a lower voltage rating.
Duty type: start (intermittent) or run (continuous). Do not interchange unless explicitly allowed by the manufacturer.
Frequency: typically 50/60 Hz. Check compatibility for non-standard conditions (e.g. inverter-fed systems).
Terminals and mounting: faston tabs, leads, terminal type; mechanical size (diameter/length) and installation constraints.
Temperature and service life: select according to ambient temperature, enclosure ventilation and operating cycle.

Installation and troubleshooting notes

Before servicing, disconnect power and confirm zero voltage; a capacitor can remain charged.
Use parts with equivalent or higher ratings than required by the motor/circuit.
If failures repeat, check mains voltage, temperature, starting relay/switch and motor condition.

FAQ

Can I increase the µF value to improve starting?
No. An incorrect capacitance may increase current and heating, potentially damaging the motor or the capacitor. Follow the specified value.

Can I use a start capacitor as a run capacitor?
Generally no. Duty cycle is different (intermittent vs continuous). Use the type required by the circuit and motor manufacturer.

What does the VAC rating mean?
It is the maximum permissible operating voltage. A higher VAC rating may be acceptable (if size/terminals fit), but a lower rating is not.

Motor Starting Capacitor 1,5uF 450VAC IN.CO.

Motor Starting Capacitor 1,5uF 450VAC IN.CO.

SKU: 1231.5UF450AC

In Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€3.07

/ €4.38

VAT excluded

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

SKU: 1232.5UF450AC-INCO

In Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€3.32

/ €4.74

VAT excluded

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

SKU: 1232.5UF450AC-DUCA

Out of Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€3.19

/ €4.56

VAT excluded

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

SKU: 1234UF450AC

In Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€3.74

/ €5.34

VAT excluded

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

Electrolytic Capacitor 1uF 350V 85 ° C Samwha 6,5x12 mm

SKU: 1236.3UF450AC

In Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€4.62

/ €6.60

VAT excluded

Motor Starting Capacitor 20uF 450VAC 40x70mm with M8 fixing screw

Motor Starting Capacitor 20uF 450VAC 40x70mm with M8 fixing screw

SKU: 12320UF450

In Stock

Samwha 1uF 350 Volt DC. Dimension 6,5x12 mm pitch 2,5 mm.

€3.24

/ €3.56

VAT excluded

1.5uF 450VAC CBB61 Polypropylene Capacitor for Motor Start

1.5uF 450VAC CBB61 Polypropylene Capacitor for Motor Start

SKU: 1231.5UF450BOX

In Stock

Motor starting capacitor with fixing slot and terminal with 1.5uF and 450VAC wires.

€2.21

/ €2.45

VAT excluded

Motor Starting Capacitor 30uF 450VAC 40x95 mm with fixing tang

Motor Starting Capacitor 30uF 450VAC 40x95 mm with fixing tang

SKU: 12330UF450AC-INCO

In Stock

Motor capacitor 30uF 450VAC with faston connections.

Product code: CBB60 30UF, RF04B17545X, 2000000557557

€7.27

/ €8.55

VAT excluded

Capacitor for Engine Start 12uF 475VAC Ducati 4.16.10.17.14

Capacitor for Engine Start 12uF 475VAC Ducati 4.16.10.17.14

SKU: 12312UF475AC-DU

In Stock

Ducati capacitor for 12uF 475VAC motors with wire connections.

Product codes: 12312UF450AC, 12412MF450AC, 165-10-809, 4.16.10.17.14, 416101714, 2000000488196, 048819

€6.72

/ €7.46

VAT excluded

Ducati Energia 4.16.10.08.14 5µF 425VAC Motor Capacitor

Ducati Energia 4.16.10.08.14 5µF 425VAC Motor Capacitor

SKU: 1235UF475AC

In Stock

Condensatore di marcia in polipropilene per motori monofase, 5µF ±5%, 425VAC. Con cavi 0,25 m e fissaggio a vite M8. Durata 10.000 h, -25…85°C.

Codici prodotto: 4.16.10.08.14, 416100814, 2000000628271, 062827

€5.28

/ €8.38

VAT excluded

Motor Starting Capacitor 80uF 450VAC 60x120mm with M8 fixing screw

Motor Starting Capacitor 80uF 450VAC 60x120mm with M8 fixing screw

SKU: 12380UF450SR

In Stock

Capacitor for 80uF 450VAC motors with faston threaded shank connections. Product code: CBB60E-80/450

€14.17

/ €14.91

VAT excluded

Electrolytic capacitor for starting motors 70uF 250VAC 36.5x68.5 with fixing screw M8

Electrolytic capacitor for starting motors 70uF 250VAC 36.5x68.5 with fixing screw M8

SKU: 12370UF250DUC

In Stock

Electrolytic capacitor for 70uF 250VAC motors with faston threaded shank connections. Product codes: 4.12.80.3.427, 412803427

€11.06

/ €11.64

VAT excluded

Motor Starting Capacitor 60uF 450VAC 50x106mm without tang

Motor Starting Capacitor 60uF 450VAC 50x106mm without tang

SKU: 12360UF450SR

In Stock

Capacitor for 60uF 450VAC motors with faston connections. Product code: CBB60A-60/450

€10.16

/ €10.70

VAT excluded

Motor Starting Capacitor 50uF 450VAC 50x106mm without tang

Motor Starting Capacitor 50uF 450VAC 50x106mm without tang

SKU: 12350UF450SR

In Stock

Capacitor for 50uF 450VAC motors with faston connections. Product code: CBB60A-50/450

€9.04

/ €9.51

VAT excluded

Ducati Energia 4.16.10.01.27 2µF 475VAC Motor Capacitor

Ducati Energia 4.16.10.01.27 2µF 475VAC Motor Capacitor

SKU: 1232UF475AC-FAST

In Stock

Condensatore di marcia in polipropilene per motori monofase, 2µF ±5%, 475VAC. Faston 6,3 mm, fissaggio a vite M8, durata 10.000 h, -25…+85 °C.

Codici prodotto: 4.16.10.01.27, 416100127, 2000000582290, 058229

€6.88

/ €7.64

VAT excluded

Polypropylene Capacitor 1.2uF 400VAC CBB61 for Motor Start

Polypropylene Capacitor 1.2uF 400VAC CBB61 for Motor Start

SKU: 1231.2UF400BOX

In Stock

Condensatore per avviamento motore con asola di fissaggio e terminale con fili da 1.2uF e 400VAC.

Codice Prodotto: CBB61 SH 1,2UF 50/60HZ, 2000000750798, 075079

€1.84

/ €2.04

VAT excluded

CBB60E-40/450 | Polypropylene Capacitor 40µF 450V AC | PP Capacitor 40uF 450VAC Faston 6.3mm Motor Start

CBB60E-40/450 | Polypropylene Capacitor 40µF 450V AC | PP Capacitor 40uF 450VAC Faston 6.3mm Motor Start

SKU: 12340UF450AC-SR

In Stock

SR PASSIVES CBB60E-40/450 | Condensatore Polipropilene 40µF 450V AC | Condens. PP 40uF 450VAC faston 6.3mm Avviamento Motore | Codici: 12340UF450AC-SR, CBB60E-40/450, 078004

€6.99

/ €7.36

VAT excluded

Motor Start Capacitor 45uF 450VAC Ducati Energia 4.16.10.63.64

Motor Start Capacitor 45uF 450VAC Ducati Energia 4.16.10.63.64

SKU: 12345UF450VAC-DU

In Stock

Condensatore per Avviamento Motori 45uF 450VAC Ducati Energia 4.16.10.63.64 | Codici: 12345UF450VAC-DU, 45UF450VAC-DU, 79566, 4.16.10.63.64, 416106364, 4 16 10 63 64

€10.57

/ €11.13

VAT excluded

Motor Start Capacitor | 2uF 475VAC | Ducati Energia | 4.16.10.01.14

Motor Start Capacitor | 2uF 475VAC | Ducati Energia | 4.16.10.01.14

SKU: 1232UF475VAC

In Stock

Condensatore per Avviamento Motori | 2uF 475VAC | Ducati Energia | 4.16.10.01.14 | Codici: 1232UF475VAC, 4.16.10.01.14, 416100114, 050154

€7.40 VAT excluded

KEMET C274 8µF 470VAC Motor Run Capacitor Faston M8

KEMET C274 8µF 470VAC Motor Run Capacitor Faston M8

SKU: 1238UF470AC-KEM

In Stock

Condensatore marcia motore KEMET serie C27, 8µF ±5% 470VAC, film/foil polipropilene, case plastico sigillato, Faston (2+2), per motori monofase e HVAC. | codici: 1238UF470AC-KEM, 082187, C274AC34800AA0J, 3165

€6.00

/ €6.25

VAT excluded

PP Capacitor for Motor Start 8µF 470VAC Faston M8

PP Capacitor for Motor Start 8µF 470VAC Faston M8

SKU: 1236UF450SR

In Stock

Condensatore in polipropilene per motori in regime, 6 µF 450V AC, tolleranza ±5%, con faston 6,3 mm. Affidabile per avviamento/servizio continuo in applicazioni HVAC e industriali. | Codici: 1236UF450SR; CBB60A-6/450; 3165; 082516; 6UF450SR.

€2.71

/ €2.82

VAT excluded

Capacitors for starting and running single-phase motors (typically induction motors), used in pumps, compressors, fans and machinery. Selection by capacitance (µF), rated voltage (VAC) and duty type.

boxes

Oltre 65.000 prodotti di elettronica professionale in pronta consegna

medal

Elevata qualità garantita dal sistema di gestione della qualità ISO9001 2015

camion

Consegne rapide in 24 / 48 ore su tutto il territorio nazionale

computer

Abilitazione per il mercato elettronico della pubblica amministrazione MEPA / SIAC