Description
PHOENIX CONTACT QUINT-DIODE/40 2938963 – 24V DC 40A Power Redundancy Module
Product Overview
The QUINT-DIODE/40 2938963 is a high‑current redundancy module for 24V DC industrial power systems. It enables parallel operation of two power supplies, providing seamless switchover and preventing reverse current flow. This protects loads and power units from damage, eliminating single points of failure in critical automation, process control, and safety applications. With high efficiency and compact DIN‑rail design, it ensures continuous power delivery and system uptime.
Technical Specifications — QUINT-DIODE/40 2938963
| Parameter | Value |
|---|---|
| Product Model | QUINT-DIODE/40 2938963 |
| Manufacturer | Phoenix Contact |
| Product Type | Power Redundancy Module |
| Input Voltage | 0–30V DC (nominal 24V DC) |
| Current Rating | 2×20A / 1×40A |
| Communication / Protocol | None (hardware‑based) |
| Operating Temperature | -25°C to 70°C (derate >60°C) |
| Mounting | DIN rail NS 35 (horizontal/vertical) |
| Dimensions (H×W×D) | 84mm × 62mm × 102mm |
| Weight | 0.7kg |
| Typical Interfaces | Screw terminals (0.5–16mm²) |
| Compliance | IP20, IEC 61000‑6‑2, RoHS |

PHOENIX CONTACT QUINT-DIODE/40 2938963
Key Features and Benefits — QUINT-DIODE/40 2938963
- Redundancy & Isolation: Safely parallels two 24V DC sources; blocks reverse current to protect supplies and loads.
- High Current Capacity: Delivers up to 40A (single) or 2×20A (dual) for demanding industrial loads.
- High Efficiency: >97% efficiency at nominal load, reducing heat and energy loss.
- Robust Protection: Reverse polarity protection (≤60V); 1kV isolation; IP20 for cabinet use.
- Easy Installation: Tool‑free DIN‑rail mounting; pluggable screw terminals for fast wiring.
- Wide Ambient Range: Operates reliably in harsh environments from -25°C to 70°C.
Related Models
- QUINT-DIODE/20 2938950: 20A redundancy module for lower‑power 24V DC systems.
- QUINT-PS/24DC/40: 40A 24V DC power supply, commonly paired for redundant setups.
- MINI-DIODE/12 2866248: Compact 12A redundancy module for space‑constrained applications.
- QUINT-SPLIT/24DC/40: 40A distribution module for isolating and splitting 24V DC feeds.
Installation and Maintenance — QUINT-DIODE/40 2938963
- Installation: Mount horizontally or vertically on standard DIN rail; torque terminals to 1.2–1.5Nm.
- Wiring: Connect two 24V DC sources to IN1/IN2; link load to OUT; observe polarity.
- Maintenance: Inspect terminals annually; ensure free airflow (avoid stacking >3 units without spacing).
- Storage: Keep in dry, clean area (-40°C to 85°C) to prevent corrosion.
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