Product Description
24V DC Power Redundant Diode Module (OR-ing Redundancy Module)
Part of the QUINT power series, this module provides redundant isolation for two 24V power supplies in parallel. In the event of a failure in one power source, it seamlessly switches to the other, eliminating circulating or backflow currents between sources. It ensures uninterrupted power supply for industrial control systems and is widely used in high-reliability applications such as PLCs, DCS, and industrial automation.
Core electrical parameters Input
Rated voltage: 24 V DC
Voltage range: 0 – 30 V DC
Two input channels: Each channel has a rated capacity of 20A; the maximum direct connection for a single channel is 40A
Reverse polarity protection: DC withstand voltage of ≤ 60V Output
Output voltage: Follows input 24V DC
Rated total output: 40A; Peak short-time maximum 60A (in low-temperature environment)
Rated load power consumption: Maximum 20W
Conversion efficiency: > 97%
Insulation and protection
Input / output ground isolation: 1kV
Protection level: IP20 (only for installation inside the control cabinet)
Electrical characteristics:
Overload and short-circuit protection
Structure and installation
Installation method: Standard 35mm DIN rail snap-fit installation (horizontal and vertical rails are both acceptable)
Terminal block: Screw-fastened terminal block
Wire specifications: Hard wire 0.5 – 16mm²; Soft wire 0.5 – 10mm²
AWG: 20 – 6AWG
Dimensions (height × width × depth): 84 × 62 × 102 mm
Net weight: 0.7 kg
Environmental conditions
Operating temperature: -25℃ ~ +70℃
In environments above 60℃, reduced usage is required (current reduction)
Storage temperature: -40℃ ~ +85℃
Certifications:
CE, RoHS, suitable for use in Ex Zone 2 explosion-proof control cabinets Working principle
Two high-power Schottky diodes are internally integrated. The two power supplies are respectively connected to the IN1 and IN2 terminals, and share the OUT output.
When the voltage is too high, the power supply automatically takes on the load. When the voltage drops or power is cut off, the other power supply immediately takes over the power supply. The diodes prevent the reverse current flow between the two power supplies, perfectly achieving seamless and uninterrupted switching of dual power supplies.
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