FACTORY OF ELECTRIC APPARATUS EMA – ELFA Sp. z o.o. st Pocztowa 7, 63-500 Ostrzeszów, PL phone: +48 62 730 30 51 fax: +48 62 730 33 06 [email protected] ELECTROMAGNETIC DISC BRAKES NEX SERIES FOR ZONE 2 / ZONE 21

NEX series explosion-proof, direct current electromagnetic brakes, spring-loaded with electromagnetic release. Intended for rotating machine parts stopping and precise positioning. Can be used for positioning and as safety brakes. These brakes are designed, built and tested in conformance with requirements of ISO 9001 and ISO 14001 quality management standards. Our products, described in this information sheet, have CE marks, which means that they are compatible with EU safety-related directives. The family of NEX brakes meets essential requirements for protective equipment and systems intended...

*dmax - at an extra charge, brakes can be produced with custom maximum diameter of the toothed bush K-EN-NEX-20171017 Pa

For example Maximum input voltage (alternating voltage) - Gin = 230VAC, The resulting output voltage of the rectifier (direct voltage) - 0,45Gin= 0,45 x 230=104VDC

The B2-2P rectifiers series forms a complete full-wave rectifier unit for direct installation. The terminal strip provided facilitates installation and connection to the circuit. The rectifier allows feeding input voltage max. 400VAC, 2A which after rectification provides DC voltage of value equal to 0,9 input voltage. Rectifier B2-2P cooperates with brakes NEX05 ^ NEX50. For example Maximum input voltage (alternating voltage) - Uin = 230VAC, The resulting output voltage of the rectifier (direct voltage) - 0,9Uin= 0,9 x 230=207VDC Rectifiers dimensions Disconnection of power supply on AC side...

Circuit PS-1 is built on the basis of MOSFET type semiconductor technique which enabled achieving effects not available in traditional designs. The brake electromagnet energized through circuit of this construction enables the brake to achieve connection and disconnection time parameters analogous to breaking of circuit on direct current side. The parameters obtained are not however gained through utilization of additional electrical circuits and switches. Simplicity of installation and parameters achieved enable very wide application, particularly in cases requiring positioning of drives, operation with...