Capacitors

The capacitors category for buses includes specialised electrical components used to stabilise voltage, filter interference and support engine starting. In modern hybrid and electric vehicles, such as the Solaris Urbino High Power, high-capacity capacitors (supercapacitors) also serve as energy storage units for energy recovered during braking.

Bus capacitors – Voltage stabilisation and energy storage

In complex bus electrical systems, capacitors play a key role in maintaining stable electrical parameters. They rapidly store and release energy, helping to smooth voltage fluctuations generated by the alternator and protect sensitive electronics from sudden current spikes. At Peterbus.pl, we offer a wide range of capacitors and capacitor modules for buses from Solaris, MAN, Mercedes-Benz, Volvo and Scania.

Applications of capacitors in bus transport

We supply components designed for various vehicle systems:

• EMI suppression capacitors: Installed near electric motors, including wipers, blowers and air-conditioning systems, to eliminate electromagnetic noise that interferes with radio and CAN bus operation.

• Starting-assist capacitors: Used to reduce the load on batteries when the engine starts, which is particularly important in city buses equipped with a start-stop system.

• Supercapacitors (ultracapacitors): Advanced modules used in hybrid buses to store kinetic energy, which is subsequently used when the vehicle moves off, significantly reducing fuel consumption.

• Capacitors in LED lighting systems: They stabilise the current supplying the LEDs, preventing flickering and extending lamp service life.

Why choose capacitors from Peterbus.pl?

A faulty capacitor, for example one that is “dried out” or swollen, loses capacitance and can cause unusual electronic faults, CAN communication errors or faster battery wear. By choosing our parts, you benefit from:

1. Highest industrial quality: We offer components resistant to extreme temperatures, from -40°C to +85°C, and strong vibrations typical of a bus engine compartment.

2. Protection for onboard electronics: Our filters and capacitors effectively protect expensive engine and transmission control units from overvoltage.

3. Selection according to technical specifications: Capacitors differ in capacitance, expressed in farads, rated operating voltage and connection type. Our experts will help you select the right module based on the VIN or the equipment specification.

4. New parts and remanufactured modules: We stock factory-new components as well as tested used supercapacitor modules, helping to optimise servicing costs for hybrid vehicles.

Keep your fleet’s electrical systems “clean”. Explore the range of capacitors, filters and energy storage modules at Peterbus.pl and choose stable power supply in all conditions.