Safety contactor C803
powermagneticDC

Safety contactor - C803 - Schaltbau GmbH - power / magnetic / DC
Safety contactor - C803 - Schaltbau GmbH - power / magnetic / DC
Safety contactor - C803 - Schaltbau GmbH - power / magnetic / DC - image - 2
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Characteristics

Function
power, safety
Technology
magnetic
Electrical characteristics
DC, high-voltage, single-pole
Contact configuration
NO
Applications
for electric vehicles, battery
Other characteristics
compact, IEC, battery, bidirectional
Primary current

Max.: 500 A

Min.: 350 A

Load voltage

Max.: 1,500 V

Min.: 0 V

Description

Efficient and compact single-pole DC NO contactors up to 1,500 volts switching voltage, continuous currents up to 500 amps and high inrush and short-time currents for most diverse e-mobility applications. The contactors in the C803 series offer a breaking capacity of up to 1,800 amps at 450 volts and ensure safety in the Battery Disconnect Unit (BDU) by reliably disconnecting the high-voltage battery from the drivetrain in the event of danger. In the event of a short circuit, the C803 can rapidly handle up to 5,000 amps for 20 milliseconds – without contact welding. The switching devices are available with an energysaving PWM drive for optimum power consumption when switching and low heating when holding or with an opti­mized coil with external control for maximum efficiency. Features More efficiency: An over-life low contact resistance and lower contact heating reduces energy losses and require less cooling Full bidirectionality: Safe disconnection of high power during charging and discharging thanks to specially designed extinguishing chamber; V2G ready Safe breaking of high power: High breaking capacity under full load up to 1.5 megawatts thanks to innovative main contact system No risk of explosion: Permanent magnetic arc extinguishing without gas encapsulation equalises overheating and overpressure at all times High mounting compatibility: Compact size specially designed for automotive applications High safety level: Mirror contact for safe feedback of the switching status according to IEC 60947-4-1, annex F

Catalogs

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Exhibitions

Meet this supplier at the following exhibition(s):

Intersolar 2026
Intersolar 2026

23-25 Jun 2026 Munich (Germany) Hall C6 - Stand 373

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.