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Mean Well DRDN20-12 Redundancy Module Power Supply 20A - DIN Rail

redundancy modulesupport 1+1 and N+1 redundancyrelay contacts for monitoring power status

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DRDN20-12

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The DRDN20 is a Mean Well power converter.

Key Features

✓ Cooling by free air convection
✓ Protections: Short circuit / Overload
✓ Railway standards: EN45545-2 (fire), EN50155 / IEC60571, IEC61373 (shock & vibration)
✓ DC OK relay contact output
✓ Safety approvals: IEC61373 5000 meters/OVC II IEC62368-1, UL62368-1, EAC TP TC 004
✓ 3 years warranty

Frequently Asked Questions

Can I use the DRDN20-12 in a 12V PLC or industrial automation control panel?

Yes, this model is built for 12V systems and is rated for 20A with 240W capacity. Its redundancy module design supports 1+1 and N+1 redundancy, which fits PLC and industrial automation panels that need power-path continuity on DIN rail.

Is the DRDN20-12 suitable for a building management control cabinet with redundant 12V power?

It can be used in a building management cabinet when the control equipment is based on 12V and the design calls for redundant power paths. The module supports 1+1 and N+1 redundancy, and the relay contacts allow power status monitoring for cabinet-level supervision.

Can this redundancy module work for 12V alarm, relay, or panel-control loads in an enclosure?

Yes, it is appropriate for enclosed 12V control loads where the system current stays within 20A and 240W. The 125.2 x 102.0 x 32.0 mm housing gives it a slim DIN rail profile for space-conscious panel layouts.

Can I use the DRDN20-12 where I need power status monitoring in a machine control cabinet?

Yes, this unit includes relay contacts for monitoring power status, which is useful in machine control cabinets that need a fault signal from the redundant power path. It is intended for 12V systems up to 20A and 240W.

What is the difference between the DRDN20-12, DRDN20-24, and DRDN20-48?

The DRDN20-12 is rated at 12V, 20A, and 240W with a 9-14VAC input range. The DRDN20-24 is 24V, 20A, and 480W with a 19-29VAC input range, while the DRDN20-48 is 48V, 20A, and 960W with a 36-60VAC input range. All three share the same 125.2 x 102.0 x 32.0 mm dimensions, 0.35 kg weight, -40°C to +80°C operating temperature, and CB, CE, EAC, and UL certifications.

Is the DRDN20-12 meant for open areas or for use inside a control enclosure?

The published specs show DIN rail mounting, industrial certifications, and an operating range of -40°C to +80°C, but they do not list an IP rating. That makes it a better fit for use inside a control cabinet or enclosure rather than in an exposed area.

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Model	Power	Voltage	Current	IP Rating
Mean Well DR-RDN20 Redundancy Module Power Supply 20A - DIN Rail	—	12V	20A	Indoor	View

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Key Features

✓ Cooling by free air convection

✓ Protections: Short circuit / Overload

✓ Railway standards: EN45545-2 (fire), EN50155 / IEC60571, IEC61373 (shock & vibration)

✓ DC OK relay contact output

✓ Safety approvals: IEC61373 5000 meters/OVC II IEC62368-1, UL62368-1, EAC TP TC 004

✓ 3 years warranty

Mean Well DRDN20-12 Redundancy Module Power Supply 20A - DIN Rail

Key Features

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Mean Well DRDN20-12 Redundancy Module Power Supply 20A - DIN Rail

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