V-BOX Intrinsically Safe Buffered Power Supply
Intrinsically safe power supplies are advanced devices used in industrial environments where there is a risk of sparks or electrical discharges, which could lead to hazards from flammable gases. These specialized power supplies are designed with safety in mind, particularly in areas where the presence of combustible substances poses a potential risk. Intrinsically safe power supplies feature technologies to prevent spark formation, including special enclosures, insulation, and electrical protection. These safety measures effectively eliminate the risk of igniting flammable gases, making them crucial in industries such as chemicals, oil, and mining.
Description
The V-BOX intrinsically safe buffered power supply consists of two units: V-BOXL and V-BOXB. It is designed to safely power electrical devices in hazardous environments. This power supply is categorized as M1, allowing its use in areas at risk of methane explosion. The power supply includes a battery that provides backup power to devices in case of a network power failure. The duration of operation on battery power depends on the battery capacity.
Key Features
Easy Connection Between Power Supply Units: Factory-prepared cables and available connectors on the power supply enclosures facilitate easy connection between the different units of the power supply, reducing installation time and eliminating the risk of errors during assembly.
Flameproof Enclosure with Terminal Strip: The flameproof enclosure of the V-BOXL unit, along with the terminal strip, serves as a flameproof junction box for the primary circuits of the power supply.
Ability to Power Devices from the V-BOXL Power Supply (Without Backup): It is possible to power devices directly from the V-BOXL unit (without backup) for the necessary time to perform maintenance tasks related to the V-BOXB unit. This provides flexibility and allows certain functions to continue without interruption.
Resistance to Harsh Environmental Conditions: The power supply is resistant to challenging conditions found in mines, such as moisture, dust, vibrations, and temperature fluctuations.
Compliance with Safety Standards: The power supply meets relevant ATEX safety standards.
Intelligent Protection System: The use of intelligent protection systems, such as surge and short-circuit protection, increases the reliability and durability of the power supply in harsh working conditions.
Low Noise Level: The power supply operates with a low noise level, which is crucial in environments where minimizing acoustic disturbances is required.
Easy Integration with Automation Systems: The power supply can be easily integrated with automation and monitoring systems, making it easier to manage and control the power supply processes.
Specification
Nominal Output Voltage: 12 VDC ± 0.6 V
Nominal Output Current: 1.45 A ± 0.05 A
Maximum Output Current (Io): 1.75 A
Maximum Output Voltage (Uo): 15.7 V
Maximum Output Power: 27.0 W
Operating Temperature Range: -10°C ÷ +40°C
Battery Operation Time (for I3=0.5A): 14 hours
Nominal Input Voltage (U1n): 110 ÷ 230 VAC
Permissible Input Voltage Range: 85 ÷ 265 VAC
Maximum Input Voltage (Um): 265 VAC
Marking: I M2 Exd [ib] I Mb I M2 (M1) Exd [ia Ma] I Mb
Enclosure Protection Rating: IP 54
Dimensions: 290 x 450 x 140 mm
Weight: 18.2 kg
Ex Zone
The device is designed for use in explosive atmospheres. It is intended for underground mining operations and in surface mining areas where there is a risk of gas or dust explosions. Group I, Category M1 devices provide very high safety levels for mining facilities exposed to methane and coal dust. The device is equipped with two independent protection measures.
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