Product Features
● The 3VL molded case circuit breaker features an extremely compact design, meeting the requirements of space-saving power distribution systems with a performance range from 16A to 1600A.
● Depending on specific requirements, universal breakers and breakers with communication capability are available for line and motor protection, starter combinations, or as non-automatic air circuit breakers.
● Corresponding releases can be supplied: thermal-magnetic release (16A to 630A) or electronic release (63A to 1600A). The internal accessories for the 3VL molded case circuit breaker comprise only two series, offering maximum versatility at the lowest cost.
Advantages at a Glance
● The 3VL molded case circuit breaker meets the highest demands of modern power distribution systems.
● Compact design, excellent technical performance, and simple operation.
● Comprehensive functionality, globally applicable.
● Extensive product range, certified to IEC international standards and UL.
● Permissible ambient temperature up to 70°C; no derating required up to 50°C or 55°C; available with thermal-magnetic and electronic releases.
● Easy configuration, assembly, and modification.
● Modular design with minimal number of components and excellent accessory uniformity.
● Comprehensive communication capabilities (supports PROFIBUS, Modbus).
Applications
● Used as incoming and outgoing circuit breakers in low-voltage switchgear assemblies.
● Used as switching and protection devices for motors, transformers, and capacitors.
● Used as system interrupters with emergency stop and shutdown functions (emergency stop switch).
● Used for shutdown and isolation functions in conjunction with lockable rotary operators and terminal covers.
International Standards and Certifications
● IEC 60947-1, EN 60947-1
● DIN VDE 0660 Part 100 and Part 101
● Isolation characteristics according to IEC 60947-2, EN 60947-2
● Unique system interrupter (master switch) compliant with EN 60204 or DIN VDE 0113.
● Additionally, UI 489 compliant products are globally applicable.
Communication
● The use of advanced communication-capable circuit breakers opens up new possibilities in commissioning, parameterization, diagnostics, maintenance, and operation.
● This provides various ways to reduce engineering costs and increase productivity in industrial plants, buildings, and infrastructure.
● Fast, reliable parameterization.
● Timely information and response prevent plant downtime.
● Effective diagnostic management.
● Measurement values enable efficient load management, facilitating convenient power demand planning and allocation according to cost centers.
Communication
● Accessories for communication-capable molded case circuit breaker protectors.
Standards and Specifications
● SENTRON 3WL circuit breakers comply with the following standards:
● IEC 60947-1, EN 60947-1
● DIN VDE 0660 Part 100
● IEC 60947-2, EN 60947-2
● DIN VDE 0660 Part 101
● Isolation characteristics according to IEC 60947-2, EN 60947-2.
● Disconnection characteristics (system interrupter) comply with EN 60204 and DIN VDE 0113. SENTRON 3WL circuit breakers also meet the requirements for "isolating switch devices for emergency stop and shutdown functions" (emergency stop switch), used in conjunction with lockable rotary operators (red-yellow) and terminal covers.
● Overcurrent releases for motor protection circuit breakers also comply with IEC 60947-4-1, DIN VDE 0660 Part 102.
● VL160X to VL400 circuit breakers can be equipped with a SENTRON 3WL RCD module. Therefore, they comply with IEC 60947-2 Annex B specifications.
● The SENTRON 3WL RCD module complies with the standards for electromagnetic compatibility IEC 61000-4-2 to 61000-4-6, IEC 61000-4-11 and EN 55011, Class B (equivalent to CISPR 11).
Operating Conditions
● SENTRON 3WL circuit breakers are suitable for enclosed applications.
● For operation under demanding conditions (e.g., dust, corrosive vapors, hazardous gases), suitable protective enclosures must be provided.
RCD Module
● The RCD module is used for retrofitting the switch. Can also be retrofitted by the user.
● SENTRON 3WL circuit breakers with RCD module can be fed from the top or bottom.
● All SENTRON 3WL circuit breakers are available with auxiliary contacts, alarm contacts, undervoltage releases, and shunt trips.
● Protects plants and equipment against overload and damage caused by earth faults (earth fault protection).
● When the vector sum of the currents in all poles (= earth fault current) exceeds the preset tripping current and time delay setting, the RCD module trips the circuit breaker using the vector sum calculation of all phase currents. Can measure AC currents and pulsating DC currents (CBR, utilization category A, compliant with DIN EN 60947-2).
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