VSKH250-14

Current - On State (It (RMS)) (Max):	555A
Base Part Number:	KH250
Package / Case:	3-MAGN-A-PAK™
Mounting Type:	Chassis Mount
Operating Temperature:	--
Current - Hold (Ih) (Max):	500mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	8500A, 8900A
Current - Gate Trigger (Igt) (Max):	200mA
Voltage - Gate Trigger (Vgt) (Max):	3V
Series:	--
Current - On State (It (AV)) (Max):	250A
Voltage - Off State:	1.4kV
Number of SCRs, Diodes:	1 SCR, 1 Diode
Structure:	Series Connection - SCR/Diode
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Thyristors - SCRs - Modules

Thyristors and SCRs, collectively referred to as simply modules, are solid-state switching devices composed of semiconductor components such as diodes, transistors and resistors, and integrated circuits. They are used in a variety of applications, ranging from basic AC/DC switching and control to sophisticated motor and load control operations.

VSKH250-14 Application Field and Working Principle

The VSKH250-14 is a high-current thyristor module with a maximum current rating of 250A. It is suitable for high voltage, high current industrial applications, such as soft-start control and elevator control. It has a wide range of operating voltages, from 12V up to 1000V.The VSKH250-14 works on a single- or three-phase cycle alternating current (AC) power supply. Its basic operating principle is that during each cycle it is forwardly biased at a given point. In order to reduce the risk of an over-current condition, the VSKH250-14 is equipped with a surge-protection circuit that can withstand large voltage and current surges.When used as an AC switch, the VSKH250-14 will have the current flowing through it only at the beginning of each half-cycle and then opened so as to switch off the circuit at the end of each half-cycle. The VSKH250-14 also works as a static switch, as it can be used to turn on/off a load by opening/closing the controlling circuit.In addition to AC switching applications, the VSKH250-14 can be used for motor control, soft-start control and load control. The VSKH250-14 provides a controlled current flow which helps to reduce the inrush current of a motor or the inrush current of a load. This helps to avoid unnecessary mechanical stresses or electrical fires caused by sudden current surges. The VSKH250-14 also functions as a protection for motors and loads against electrical faults and overloads.The VSKH250-14 also comes with a built-in static bypass, allowing the user to turn off the current without having to disconnect the module itself. This feature allows the VSKH250-14 to be used as a disconnector switch, a safety device that quickly turns off the current in the event of an emergency.The VSKH250-14 is a versatile and cost-effective, high-current thyristor module suitable for a wide range of industrial applications. Its reliable performance, built-in protection, and ability to be used for AC switching and motor control make it an ideal choice for a variety of industrial settings.

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