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Introduction to the PWRADPT-WM-18-UK=
The PWRADPT-WM-18-UK= is a regionalized 18W AC/DC power adapter designed for Cisco networking devices requiring compact, fixed-mount power solutions in the United Kingdom. Compliant with UK Plug Safety Regulations (BS 1363) and EU EcoDesign Directive 2019/1782, this adapter provides stable 12V DC power to low-power switches, IP phones, and IoT gateways in office, retail, and light industrial environments. Its integrated wall-mount design eliminates cable clutter, making it ideal for space-constrained deployments.
Core Technical Specifications
Electrical Performance
- Input: 230–240V AC, 50 Hz (UK 3-pin plug with 13A fuse).
- Output: 12V DC ±5%, 1.5A max (18W continuous).
- Efficiency: 85% minimum at full load, meeting Level VI efficiency standards.
- Protections: Short-circuit, over-current, and over-temperature shutdown.
Physical and Environmental Design
- Housing: Flame-retardant polycarbonate (UL94 V-0 rated).
- Operating Temperature: 0°C to +40°C (derating to 15W at +35°C).
- Safety Certifications:
- BS 1363 (UK): Fused plug with insulated sleeves.
- EN 62368-1: Audio/video and IT equipment safety.
- CE + UKCA Marks: Post-Brexit compliance.
Compatibility with Cisco Devices
The PWRADPT-WM-18-UK= is validated for use with:
- Cisco IP Phones 8800 Series: Supports PoE passthrough for connected devices.
- Cisco Catalyst 1000 Series Switches: Non-PoE models like C1000-8T-L.
- Cisco Meraki Go GS110/GS310: Powers non-PoE switches in small office setups.
Critical Limitations:
- Incompatible with PoE+ devices (e.g., Catalyst 9200L) requiring 30W+ power.
- Not rated for outdoor use or high-humidity environments (>80% RH).
Deployment Best Practices
Step 1: Site Preparation
- Ensure wall outlets comply with BS 1363 and are grounded (<0.1Ω earth continuity).
- Avoid mounting near heat sources (e.g., radiators) to prevent thermal throttling.
Step 2: Installation
- Secure the adapter directly to a wall outlet using the integrated clip.
- Use Cisco Cable Ties to route the 1.8-meter DC cable neatly along baseboards.
Step 3: Power Management
- For multi-device setups, deploy one PWRADPT-WM-18-UK= per endpoint to avoid overloading.
- Monitor voltage stability via Cisco DNA Center for devices like Meraki Go switches.
Addressing Critical User Concerns
Q: Can this adapter handle voltage fluctuations common in older UK buildings?
A: Yes. The built-in auto-recovery fuse resets after transient surges (up to 250V AC). For chronic instability, pair with a Cisco UPR100-UK surge protector.
Q: Is the DC connector proprietary or standard?
A: Standard 2.1mm × 5.5mm barrel connector with center-positive polarity. Third-party cables can be used if compliant with EN 50565-1.
Q: Does it support daisy-chaining multiple devices?
A: No. The 1.5A output is insufficient for multi-device loads. Use a Cisco PWRADPT-WM-30-UK= for higher capacity.
Q: What is the lifespan under continuous operation?
A: 50,000 hours MTBF at +25°C ambient, per IEC 62321 accelerated life testing.
Procurement and Authenticity
To ensure compliance with UK safety laws and Cisco warranty terms, purchase the PWRADPT-WM-18-UK= exclusively from certified suppliers like [“PWRADPT-WM-18-UK=” link to (https://itmall.sale/product-category/cisco/). Counterfeit adapters often lack fused plugs, risking fire hazards and voiding device warranties.
Final Assessment
The PWRADPT-WM-18-UK= strikes a pragmatic balance between regulatory compliance and cost-effectiveness for low-power Cisco deployments. While its lack of surge suppression and limited amperage make it unsuitable for industrial use, the wall-mount design addresses a critical pain point in office and retail cabling. Future iterations would benefit from USB-C compatibility to support hybrid work devices, but for now, it remains a niche yet vital component in Cisco’s UK-focused power ecosystem.