MCNT33-0 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The MCNT33-0 is a power supply module manufactured by B & R Automation. Part of the MCN Power Supply Modules series, it features an allowed input range of 18 to 32 VDC with a nominal input of 24 VDC. The module includes galvanic isolation and a DC LED status indicator, and is equipped with a 470 microfarad input capacitance and a 4700 microfarad support capacitor.
Internal Product Review
The MCNT33-0 is a B & R Automation power supply module built for stable 24 VDC nominal input and an 18 to 32 VDC allowed input range. Galvanic isolation and a clear DC LED status indicator support dependable integration and straightforward diagnostics in control cabinets. A 4700 µF single-phase bridge support capacitor gives the module strong ride-through behavior, making it a well-executed choice for consistent DC supply performance.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The MCNT33-0 is a DC power supply module produced by B&R Automation for the MCN Power Supply Modules series. It mounts on a DIN rail inside control cabinets and feeds CPUs, communication cards, and sensors with conditioned low-voltage power. By stabilizing the incoming supply and storing short bursts of energy, the unit maintains continuous PLC operation during load transients that are common in automated production cells. Its mechanical format matches the standard footprint used across the platform.
Electrically, the module accepts an input between 18 to 32 VDC, allowing operation through brownouts or generator fluctuations while maintaining the regulated bus. The internal regulation is optimized for a 24 VDC nominal source, which is the typical logic level for B&R control networks. To prevent ground loops, the primary and secondary circuits are separated by galvanic isolation, protecting downstream electronics from common-mode noise and fault currents. Incoming energy first encounters a bulk input capacitor rated at 470 µF, which smooths ripple and supplies inrush current to the conversion stage. A larger hold-up reservoir of 4700 µF is placed on the output, delivering milliseconds of ride-through energy when drives or solenoids demand sudden current surges.
Operational feedback is provided by a front-panel DC LED, allowing quick visual confirmation of output power. The design uses no backup battery, but its circuitry can accept an external pack if required. If a reserve source is installed, it must use lithium chemistry to match the module’s charging profile. The discharge path of the hold-up stage is rectified through a single-phase bridge, which helps the support capacitor recharge rapidly after a load dump while minimizing reverse currents. This arrangement helps keep the downstream 24 V rail within tolerance during brief power disturbances.
