Transition Networks 25104 48VDC 5A DIN Rail Power Supply
Overview
The Transition Networks 25104 is a compact DIN rail-mounted power supply designed for distributed network and security infrastructure deployments. It accepts universal AC input (85–264V, 47–63 Hz) and delivers stable 48VDC at 5A—delivering 240 watts of regulated power. This is the standard voltage and current pairing for powering network access points, PoE injectors, and remote site equipment where centralized supply and protection matter.
Key Features
- 48VDC @ 5A Output (240W): Sufficient to power multiple network devices, redundant PoE systems, or standalone remote equipment. The 240-watt ceiling means you can run mid-range PoE injectors or small access point clusters without branching supplies.
- Universal AC Input (85–264V, 47–63 Hz): Single unit works across North American, European, and international power standards. No need for separate SKUs by region—simplifies sparing and inventory for multi-site deployments.
- DIN Rail Mounting: Installs directly onto standard DIN rail inside electrical enclosures, network cabinets, or outdoor equipment boxes. Saves panel space and integrates with existing automation and control infrastructure without custom brackets.
- Regulated Output: Maintains steady 48V even as input AC fluctuates, protecting sensitive telecom and network hardware from voltage sag or surge damage. Critical in remote or generator-backed sites where line quality is unpredictable.
- Compact Industrial Form Factor: Designed for harsh environments and unmanned remote locations. Works alongside other DIN-rail components (terminals, circuit breakers, relays) in tight spaces where modular, stackable equipment is preferred.
- Telecom-Grade Reliability: Engineered for continuous 24/7 operation in unattended enclosures. Suitable for powering backup systems, redundant network nodes, and security devices in distributed sites (warehouses, branch offices, remote surveillance nodes).
Integration & Compatibility
The 25104 pairs directly with 48VDC network equipment and DIN rail power infrastructure. It's a foundation component in multi-device supply designs—commonly paired with surge protection, battery backup systems, or load-sharing distribution blocks. If your site architecture includes managed network switches or centralized NVRs powered from a common 48V rail, this unit provides the baseline supply. Integrators often use the 25104 in remote PoE injection scenarios where AC mains are available but local 48VDC regulation is required.
The universal AC input means you configure the 25104 once and deploy across multiple regions without re-rating or rewiring. Standard electrical enclosure mounting requires only DIN rail and two terminal blocks (input and output). No special panel cutouts or custom hardware.
When to Choose a Different Model
If your installation requires higher current output (e.g., 10A or 20A for multiple PoE systems or rack-mounted equipment), step up to a higher-amperage unit in the Transition Networks power supply family. If backup battery support is essential, integrate an external UPS or battery module rather than relying on this supply alone. The 25104 provides stable primary power; it does not include integrated battery backup.
Typical Deployments
Remote warehouse automation sites, distributed fiber aggregation nodes, outdoor cellular backhaul enclosures, utility SCADA cabinets, and small-to-medium security camera PoE injection setups. Also common in telecom demarcation boxes where local regulated 48V is preferred over running PoE end-to-end from the main switch.
Frequently Asked Questions
Q: Can the Transition Networks 25104 power multiple PoE switches or access points?
A: Yes, as long as the total load does not exceed 5A at 48VDC (240W). For example, a single 802.3bt PoE+ switch consuming 120–150W would run comfortably; two mid-range PoE switches (60W each) would fit within budget. Verify the amperage draw of each device and sum them before deployment.
Q: What happens if AC input power fails?
A: The 25104 will cease output. It includes no holdover or battery backup. If continuous uptime is required during mains loss, integrate an external UPS or battery backup module on the input side, or pair the supply with a separate battery system on the output rail.
Q: Is the 25104 suitable for outdoor installation?
A: The supply itself is designed for DIN rail mounting inside an enclosure. For outdoor use, install the 25104 inside a weatherproof electrical box, NEMA 4X stainless steel cabinet, or pole-mounted enclosure. Ensure the enclosure itself provides IP66 or higher environmental protection and proper thermal management.
Q: Does the 25104 include surge protection or filtering?
A: The unit provides regulated output and internal protection against overvoltage and reverse polarity. For sites with unstable AC supply or lightning risk, add an external surge suppressor or isolation transformer upstream of the input terminals.
Q: What is the warranty coverage?
A: Consult the manufacturer documentation or your specialty distributor for warranty terms and support options specific to your region and purchase agreement.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Transition Networks 25104 is a straightforward DIN rail supply—no frills, no integrated batteries, just regulated 48VDC at 5A with a universal AC input. In practice, this is a solid foundation component for remote and distributed network sites where you need stable, standards-compliant power in a compact footprint.
Technical Highlights:
- 240-Watt Output Capacity: Enough to run a single mid-range PoE+ switch (120–150W draw) or two smaller access points in parallel. Sizing is deterministic—add up the device current draws and confirm you stay under 5A at 48VDC. No surprises, no overload margin games.
- Universal AC Input (85–264V): A real advantage for multi-region deployments. One SKU covers North America, Europe, and APAC voltage ranges. Eliminates the need to stock region-specific supplies or manage SKU proliferation in a distributed sparing program.
- DIN Rail Integration: Mounts directly onto standard DIN rail alongside relays, terminals, and circuit breakers. Simplifies enclosure design and reduces custom panel work—important when you're outfitting dozens of small remote sites.
Deployment Considerations:
- No Battery Backup: The 25104 is primary power only. If your site requires bridging through AC loss, plan for an external UPS or battery backup on the output rail. Don't assume this unit will hold voltage during a power event.
- Enclosure Management: The supply is designed for indoor DIN rail installation. In outdoor or harsh-environment deployments, the enclosure itself must provide IP66+ protection and adequate thermal management. Plan for ventilation or active cooling in enclosed spaces or high-ambient-temperature sites.
Best fit: small-to-medium distributed network nodes (branch office PoE injection, remote surveillance PoE aggregation, utility automation substations) where AC mains are stable and you don't need backup. Avoid it for battery-backed or uninterruptible supply scenarios unless you're pairing it with a separate battery system.
