0PS1200.1 B & R Automation
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The B & R Automation 0PS1200.1 is part of the 0PS Power Supplies series and provides a nominal output voltage of 24 VDC with a rated output current of 20 Amps. This power supply delivers 480 Watts output power and has a power factor of 0.99. It features IP20 ingress protection, an internal 10 Amp slow-blow fuse, and weighs 2000 grams.
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Product Description:
The 0PS1200.1 is a DIN-rail-mounted switching power supply from B & R Automation and is part of the 0PS Power Supplies series. The unit delivers a regulated DC rail for controllers, motion drives, and field devices, allowing the low-voltage sections of a machine to remain isolated from fluctuating mains conditions. Its housing is 115 mm wide, 152.5 mm deep, and 130 mm high, allowing it to fit common 35 mm DIN rails without obstructing adjacent devices.
For steady operation, the supply regulates its output to 24 VDC ±1%, and the DC OK signal activates once the bus exceeds the 21.5 V threshold so downstream electronics can monitor readiness. At full load, it can provide 20 A, corresponding to a maximum continuous power of 480 W. Power factor correction circuitry maintains an input displacement factor near 0.99, minimizing reactive current on the plant distribution network. The housing has an IP20 ingress protection rating, making it suitable for protected cabinet interiors. The regulated output helps connected equipment maintain stable operation when the incoming supply experiences normal industrial voltage fluctuations.
The primary-to-secondary isolation withstands 4 kV AC to protect logic circuits from mains transients, while an additional 500 VDC separation between the output and ground limits leakage current in sensor networks. Operational safety is reinforced by an embedded 10 A slow-blow fuse that disconnects the converter during internal faults, while a 16 A characteristic-B circuit breaker must be installed on the supply line to clear upstream overloads. Its thermal design and component derating allow continuous service at ambient temperatures encountered at elevations up to 4000 m without derating the 20 A output. As Class I equipment, the chassis requires a protective earth conductor to maintain touch-current compliance. The steel enclosure and magnetic components produce a total mass of 2000 g, which limits the load placed on the mounting rail. Proper spacing around the enclosure supports heat dissipation and preserves access to the wiring terminals.
