Activation current limiter

Gentle start-up for one-phase and three-phase electrical consumers

High activation currents, e.g. for start-up of electric motors, can damage or interfere with the supply network and other connected consumers. Voltage-controlled activation current limiters prevent heavy choking of the mains voltage and overloading due to current peaks. The activation current limiter works with a pre-adjusted limiting resistor (NTC) which reduces the activation current so that the consumer starts up more slowly. After a defined time delay, the NTC of the activation current limiter is bypassed automatically and the full output is available. ISMET delivers activation current limiters in several designs for various application and installation variants.

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ESBG

Single-phase starting current limiter as in-line device for electric consumers with high starting currents. Limiting resistor NTC. Plastic casing with incorporated grounding plug and grounding outlet.

IR: 16 AUPRI: 230 V

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Schematics

The ESBG starting current limiter is inserted between the mains connection (grounding outlet) and the consumer device to which the starting current is applied. In order to ensure convenient handling, the casing of this device is designed as plug-in unit and equipped with a grounding outlet. The functioning of this device is based on the time-delayed bridging of an NTC resistor which is carried out as soon as a current flow originated by the activation of a consumer device, is detected. This device is current-driven, so it also functions in the event of secondary switching. Due to the characteristics of the NTC limiting resistor, time intervals between several consecutive starts should be at least one minute. Possible applications: Electric power tools such as grinders, garden tools (e.g. compost choppers and shredders), electric consumers with primary switched- mode power supplies.


Variants overview

Rated current Article number Measurements Weight
Primary current PRI 230 V
SEC 230 V
a x b x c / L x B x HCU kgGes. kg
A
16 127 x 53 x 5300
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