$ 275.31
Ensure reliable 24V DC power with Phoenix Contact QUINT-BUFFER/24DC/20. Bridges outages, supports peak loads, and protects critical industrial systems.
The Phoenix Contact QUINT-BUFFER/24DC/20 (Article No. 2866213) is a capacitor-based buffer module that keeps 24 V DC systems stable during power fluctuations. Designed for loads up to 20 A, it bridges short interruptions and supports smooth operation in demanding environments. With buffer times ranging from milliseconds at full current to several seconds at lighter loads, it ensures equipment continues running or shuts down safely when needed. Its built-in separation of buffered and unbuffered loads helps optimize energy use and protects sensitive devices, making it a dependable choice for industrial power systems.
The QUINT-BUFFER/24DC/20 is engineered to maximize system availability and protect valuable processes. It supplies stored energy instantly when input power drops, minimizing downtime and preventing data loss. High efficiency and quick recharge capability keep systems ready for the next event, while clear visual and electrical status signals simplify monitoring. The module can also support peak loads and trigger protective devices, reducing risks of overload or damage. Compact, maintenance-free, and built for industrial conditions, it is well suited for automation, transportation, and mission-critical installations where power continuity cannot be compromised.
Because uninterrupted power means uninterrupted productivity. The QUINT-BUFFER/24DC/20 is not just a buffer—it’s your system’s safety net. With its maintenance-free capacitor technology, it bridges sudden voltage dips, supports peak loads, and keeps critical processes alive. Compact, reliable, and highly efficient, it transforms ordinary 24 V DC systems into resilient, failure-ready networks.
Unexpected power drops can crash systems, cause data loss, or damage sensitive equipment. The QUINT-BUFFER/24DC/20 solves this by instantly supplying stored energy when power disappears. It smooths out short interruptions, ensures orderly shutdowns during longer outages, and protects against internal network faults. In industries where downtime is costly, it delivers confidence and continuity.
| Feature | Details | Benefit |
|---|---|---|
| Input Voltage Range | 22.5 V DC … 30 V DC | Flexible operation across typical 24 V DC systems |
| Nominal Output Voltage | 24 V DC (adjustable 22–28.5 V) | Ensures compatibility with various industrial loads |
| Output Current | Up to 20 A (27 A in buffer mode) | Handles high loads and supports peak demand |
| Buffer Time | 200 ms at 20 A, up to 4 s at 1 A | Keeps equipment running through short outages |
| Efficiency | >95% | Minimizes energy loss and reduces heat generation |
| Energy Storage | Maintenance-free capacitor | No battery replacement, reduced maintenance costs |
| Protection Features | Transient surge protection, suppressor diode < 35 V DC | Shields equipment from damaging spikes |
| Load Separation | Buffered and unbuffered outputs | Optimized energy use and fault isolation |
| Signaling & Monitoring | Active switching output, LED “Power Good” | Easy integration with monitoring systems |
| Mounting Type | DIN rail, metal housing (AluNox) | Compact installation and durable construction |
| Environmental Rating | -25 °C to +70 °C, IP20, vibration/shock tested | Reliable in harsh industrial conditions |
| Standards & Approvals | UL, cUL, DNV GL, ABS, CE, RoHS compliant | Certified for global industrial applications |
| Dimensions (W x H x D) | 64 x 130 x 125 mm | Space-saving, suitable for control cabinets |
| MTBF (Service Life) | >500,000 hours | High reliability, reduces unplanned downtime |
Download QUINT-BUFFER/24DC/20 (2866213) Datasheet
Industrial controllers and PLCs are extremely sensitive to sudden voltage dips. Even a momentary loss of power can cause unexpected resets and interrupted processes. With a buffer module in place, the system gains valuable time to store operational data and perform a safe shutdown sequence. This ensures equipment restarts reliably after power returns, while avoiding costly downtime or corrupted data.
Large automated machines often require extra current when motors or contactors start. Without a stabilizing device, this surge can drag down the supply voltage, leading to errors or tripped circuits. By releasing stored energy instantly, the buffer module compensates for the peak demand. This maintains a steady 24 V DC line, reduces unnecessary faults, and keeps production equipment running smoothly.
Facilities operating in regions with weak or fluctuating electrical supply face frequent short interruptions. Sensitive devices connected to the DC bus can stop abruptly when the voltage dips. The buffer module bridges these moments seamlessly, maintaining voltage stability long enough to ride through disturbances. This prevents disruptions across production lines and protects critical electronics from power quality issues.
Human-machine interfaces and industrial PCs often carry out essential data logging and process visualization tasks. If power is cut without warning, information may be lost and systems left in an inconsistent state. The buffer module provides a short but reliable power reserve, giving these systems time to complete storage tasks or switch to backup. This preserves valuable records and ensures operators have accurate insights for analysis.
| Category | Model / Part Number | Description | Benefit |
|---|---|---|---|
| Mounting Adapter | UWA 182/52 – 2938235 | Universal wall adapter for secure mounting under heavy vibration | Ensures stable installation in demanding environments |
| QUINT-PS-ADAPTERS7/2 – 2938206 | Assembly adapter for QUINT POWER units on Siemens S7-300 rail | Simplifies integration with Siemens control systems | |
| DIN Rail Adapter | UTA 107 – 2853983 | Universal DIN rail adapter for switchgear mounting | Flexible installation in compact control cabinets |
| QUINT Power Supply | QUINT-PS/24DC/20 – 2866750 | 24 V DC, 20 A QUINT power supply | Perfectly matched DC source for buffer module |
| QUINT ORING Module | QUINT-ORING/24DC/2×20 – 2863062 | Redundancy module for load sharing and fault isolation | Ensures reliable redundancy with multiple power sources |
| QUINT DC UPS | QUINT-UPS/24DC/24 – 2320911 | Intelligent DC UPS with monitoring | Provides extended backup beyond short-term buffering |
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Warranty – 1-year warranty for your peace of mind.
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