New approvals for QUINT DC/DC converters
All QUINT DC/DC converters with an input voltage of 24 V can now also be used in potentially explosive areas, as they come equipped with "UL listed ANSI/ISA-12.12.01 Class I, Division 2, Groups A, B, C, D" approval.
The devices therefore meet significantly higher standards in relation to electromagnetic compatibility and vibration resistance.
Their reduced susceptibility to failure and higher fault tolerance make the modules suitable for industrial applications with higher requirements in terms of environmental conditions.
Maximum system availability through SFB technology
SFB (selective fuse breaking) technology can be used to reliably trip standard circuit breakers.
Faulty current paths are switched off selectively, the fault is thus located, and important system parts remain in operation.
Background: What does the technology do?
QUINT DC/DC converters change the voltage level or compensate for loss-related voltage drops by raising the voltage on long supply lines. They separate circuits from each other using electrical isolation in order to decouple and protect sensitive loads.
The primary-switched switching device thus has an internal intermediate circuit, which acts as a filter. This enables grounded circuits to be isolated from ungrounded circuits, for example, or protects critical loads against disruptive voltage fluctuations.
For magnetic tripping of circuit breakers, the devices supply peak currents of 30 to 120 A for 12 milliseconds with rated output currents of 5 to 20 A. The voltage transducers work with DC voltages of 18 to 32 V DC at the input. During operation the range increases to 14 to 32 V DC. Depending on the device type, the output voltage can be set on the front via potentiometer for the 5 to 18 V DC, 18 to 29.5 V DC, and 30 to 56 V DC ranges.
Comprehensive diagnostics are provided through constant monitoring of the input voltage, output voltage, and current. This preventive function monitoring visualizes critical operating states and indicates them to the controller via the active switching output or the floating relay contact, before errors can occur in the system.