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The YR40.242 MOSFET Redundancy Module by PULS provides a reliable and efficient way to achieve true power supply redundancy in DC systems. With two 20 A inputs and a single 40 A output, this compact module ensures uninterrupted load operation — even if one power supply fails.
Using MOSFET technology, the YR40.242 offers an ultra-low voltage drop of only 72 mV, delivering higher efficiency and lower heat generation compared to traditional diode-based redundancy modules. It operates over a wide DC voltage range of 12–28 V and is optimized for high availability and reliability in demanding industrial environments.
With a DIN rail mounting design, compact dimensions (36 x 124 x 127 mm), and a lightweight 280 g construction, it is ideal for use in industrial automation, process control, machine building, and telecommunications.
Built to last, the YR40.242 offers an impressive MTBF of 4.5 million hours at 40°C, ensuring dependable operation with minimal maintenance requirements.
| Specification | Details |
|---|---|
| Range of Product | Redundancy Modules |
| Product or Component Type | MOSFET Redundancy Module |
| Device Short Name | YR40.242 |
| Applications | Power supply redundancy for industrial control systems, automation panels, and critical loads |
| Utilization Category | DC redundancy and protection for dual power supply systems |
| Rated Operational Voltage [Ue] | DC 12 V – 28 V |
| Input Data | |
| – Input Voltage Range | DC 12 – 28 V |
| – Input Current | 2 × 20 A |
| – Nominal Current per Input | 20 A |
| – Voltage Drop | 72 mV |
| Output Data | |
| – Output Voltage Range | DC 12 – 28 V |
| – Rated Output Current | 40 A |
| – Short-Circuit Output Current (max.) | 26 A |
| – Derating | 1 W/°C for > +60°C |
| Performance Data | |
| – Power Losses (typ.) | 1.7 W |
| – No-Load Losses (typ.) | 0.2 W |
| – MTBF (SN 29500 @ 40°C) | 4,500,000 hours |
| Mechanical Data | |
| – Dimensions (W × H × D) | 36 × 124 × 127 mm |
| – Weight | 280 g |
| – Mounting Method | DIN Rail |
| – Connection Method | Screw Terminals |
| Environmental Conditions | |
| – Operating Temperature Range | -40°C to +70°C |
| Protection Features | Reverse polarity, overload, and short-circuit protection |
| Certifications & Compliance | CE, UL, and RoHS compliant |