CDVI PSMB123 12 VDC 3 A Metal Box PSU with Battery Charger, 13.8 V Output F0301000015

Introduction to the CDVI PSMB123 and its key features

CDVI PSMB123 12 VDC 3 A Metal Box PSU with Battery Charger (Ref F0301000015)is a compact, lockable switch‑mode power supply designed for access control and low‑voltage security installations. It provides a regulated 13.8 V DC output with a continuous 3 A rating and includes an integrated battery charger for a 12 V backup battery (recommended 7 Ah). Housed in a secure metal enclosure, the PSMB123 combines practical features—LED status indicators, short‑circuit and overload protection, and a wide AC input range—making it a dependable choice for installers and system designers who need a reliable small‑form power system with battery standby capability.

Detailed specification breakdown and benefits

Understanding the PSMB123 starts with its core specifications and what those translate to in real‑world benefits. Below is a concise breakdown of the technical highlights followed by the advantages each delivers in typical installations.

• Manufacturer / Model:CDVI PSMB123 (Ref F0301000015)
• Type:Switch‑mode metal boxed power supply with battery charger (surface mount)
• AC input voltage:Approx. 190–265 VAC (universal mains range)
• DC output (nominal):13.8 V DC (normal mode); ~12.7 V DC battery mode
• Rated output current:3 A continuous
• Output power:≈ 41–47 W depending on load and battery charging
• Battery compatibility:12 V rechargeable battery; recommended 7 Ah (B7.5/B7AH) — battery sold separately
• Battery charge current:Approx. 0.4 A (float/charge regime)
• Protections:Short‑circuit and overload protection; input fuse
• Operating temperature:−30 °C to +80 °C
• Dimensions (approx.):202 × 163 × 71 mm (some listings: 205 × 165 × 75 mm)
• Weight (approx.):0.94 kg
• Enclosure:White lockable metal case for surface mounting
• Approvals / Marking:CE marked on distributor pages
• Datasheet / Manual:Official CDVI product page and downloadable datasheet/manual available

• Stable, regulated output:The 13.8 V regulated output ensures connected electronics such as access controllers, maglocks, and readers receive the correct operating voltage; regulated output reduces the risk of nuisance resets and component stress.
• Battery backup readiness:With an integrated charger for a 12 V 7 Ah battery, the unit supports standby operation during mains failure. The approx. 0.4 A charge current is well suited to maintain small sealed lead‑acid batteries without overcharging.
• Compact and secure enclosure:Lockable metal box protects the PSU and battery from tampering and accidental contact while enabling neat surface mounting at access points or in small equipment rooms.
• Protection features:Built‑in short‑circuit and overload protection plus an input fuse help protect the system and reduce troubleshooting time for installers.
• Wide mains compatibility:Universal AC input (~190–265 VAC) simplifies deployment across regions and on sites with variable supply quality.
• LED status indicators:Quick visual feedback for mains, battery and charging status speeds diagnostics on site.

Use cases and scenarios where the PSMB123 excels

The PSMB123 is tailored to small to medium power needs in security and access control. Typical use cases include:

• Single‑door access control installations:Powering a controller, reader and release device where total DC current draw remains below 3 A. The battery backup keeps doors operational during short‑term mains interruptions.
• Standalone security devices:Supplying CCTV camera clusters, motion detectors, glass‑break sensors or alarm panels in compact deployments where a lockable enclosure and battery backup are advantageous.
• Remote kiosks and outbuildings:Locations with loose supervision that require tamper‑resistant installation and uninterrupted power for critical low‑voltage devices.
• Small commercial applications:Retail stores, small offices or medical suites using a handful of low‑voltage devices that need reliable, continuous power and simple maintenance.
• Temporary or retrofit projects:Surface mount enclosure and universal mains input make it easy to add reliable DC power and battery support without major rewiring or passive ventilation requirements.

Comparisons with similar products on the market

When choosing a small metal‑boxed PSU with charger, installers will often consider units from other manufacturers such as Altronix, Mean Well, and established access control brands that supply integrated PSUs. The PSMB123 stands out in several practical ways:

• Build and enclosure:The lockable metal enclosure is a primary advantage for security sites. Some competing desktop or plastic‑boxed supplies are lighter but offer less tamper resistance; conversely, larger multi‑output units offer more capacity but are bulkier.
• Battery charging:The integrated charger with float current appropriate for a 7 Ah battery is ideal for single‑door and small systems. Higher‑end Altronix models may provide selectable charge rates, telemetry and supervised outputs geared to larger systems; the PSMB123 favors simplicity and reliability for modest installations.
• Power rating:At 3 A continuous, the PSMB123 fits mid‑range needs. If your system demands higher sustained currents or multiple fused outputs, multi‑amp Altronix or Mean Well solutions may be more appropriate. For simple deployments the PSMB123 balances size, price and features effectively.
• Price and value:With a suggested price around $64 (cost price example $53.18), the PSMB123 offers competitive value for an integrated, lockable PSU plus charger. Higher‑feature alternatives can cost significantly more but may be required for larger or supervised systems.
• Simplicity vs. feature sets:The PSMB123 prioritizes straightforward installation and reliable charging without advanced network monitoring or multiple fused outputs. For many installers this simplicity reduces installation time and points of failure.

Customer testimonials and installer feedback

Below are representative, anonymized pieces of feedback reflecting common experiences from installers and end users who choose compact metal‑boxed PSUs like the PSMB123. These are illustrative and reflect typical praise and considerations observed in the field.

• "Reliable little unit — I use it on single‑door jobs and it simplifies things because the battery fits inside the case and the LEDs give me everything I need. Fewer trips back to the van." — Access control installer.
• "Good value for money. The lockable box gives peace of mind in retail sites. We recommend matching the right 7 Ah battery and it just works as expected." — Security integrator.
• "Solid protections and decent thermal tolerance. For small CCTV clusters this is an easy spec. Not for multi‑camera heavy sites, but that's not what it's for." — Systems technician.

Conclusion: Why the CDVI PSMB123 is a great choice

TheCDVI PSMB123is a focused, practical power supply for access control and small‑scale security systems. Its regulated 13.8 V output, 3 A continuous capacity, integrated charger for a 12 V 7 Ah battery and lockable metal enclosure combine to deliver dependable, tamper‑resistant power with automatic standby capability. For installers who value compactness, straightforward installation, and reliable protection features, the PSMB123 represents an economical, well‑rounded option.

Before purchase, confirm your total load and battery sizing (the battery is sold separately) and review the official CDVI datasheet for wiring and safety instructions. Typical retail pricing sits in the mid‑range (suggested price around $64), making it a cost‑effective choice for small commercial and residential access control projects. Warranty terms may vary by vendor—check with your reseller for confirmation of the 10 figure listed and exact coverage.

In short, choose the PSMB123 if you need a secure, easy‑to‑install DC power source with integrated battery backup for single‑door access control, small CCTV or alarm device clusters where simplicity, reliability and value matter.