Overview
The Delta DRR DRR-40N features two independent DC inputs. It supports 1+1 dual power redundancy and N+1 multi-power parallel expansion. The two independent DC OK relays have passive contacts and monitor the on/off status of the two input power sources respectively. The DIN rail clip installation, aluminum metal casing for heat dissipation, and terminal screws for secure wiring are provided. The device has IP20 natural air-cooling function.
Specification
| Item | Specification |
|---|---|
| Model | DRR-40N |
| Product Type | DC redundancy module for DIN rail power supply |
| Input Voltage Range | DC 22～60V (suitable for 24V & 48V DC system) |
| Rated Output Current | 40A per unit |
| Typical Voltage Drop | 0.65V (MOSFET design) |
| Structure | 2 independent DC input, 1 common output |
| Alarm Function | 2 sets of DC OK dry contact relay output |
| Isolation Withstand Voltage | 1500VDC (Input to chassis) |
| Mounting | TS35 standard DIN rail mounting |
| Dimension(W×H×D) | 50×122×121mm |
| Housing | Aluminum heat sink case, screw terminal connection |
| Net Weight | Approx.0.52kg |
| Cooling | Natural convection cooling |
| Operating Temperature | -40℃～+80℃ |
| Protection Grade | IP20 |
| Certification | CE, UL, RoHS |
| Application | Redundancy matching with Delta DRM series power supply for PLC & automation control cabinet |
FAQ
1.Which two types of DC voltage systems can the DRR-40N be compatible with?
The Two DC power supply systems: 24VDC and 48VDC
2.What is the typical voltage drop value of the MOS architecture used in DRR-40N?
Supported. The Typical voltage drop: 0.65V (650mV)
3.How many DC OK passive alarm contacts does the DRR-40N have?
The Two independent DC OK passive relays with alarm contacts monitor the status of the two input power supplies respectively.
4.What is the input-output circuit structure of DRR-40N?
The Two independent DC inputs and one common output
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