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Introduction to the PWR-CORD-DNK-B=: Purpose and Design
The Cisco PWR-CORD-DNK-B= is a Denmark-specific AC power cable designed for Cisco networking and server equipment, ensuring compliance with regional electrical safety standards. This 1.8-meter cable features a CEE 7/7 Schuko plug (Type F) on one end and an IEC 60320 C13 connector on the other, tailored for devices like Cisco UCS servers, Catalyst switches, and ASR routers. Unlike generic cables, the PWR-CORD-DNK-B= meets DK-HA (Danish Harmonized Approval) requirements, including fire resistance and grounding integrity critical for industrial and data center environments.
Cisco’s documentation emphasizes its role in mitigating ground loop interference—a common issue in high-density server racks—by using shielded conductors and reinforced insulation.
Technical Specifications and Safety Certifications
Electrical and Mechanical Parameters
- Voltage Rating: 250V AC, 10A (16A surge-resistant)
- Conductor Gauge: 3×1.0 mm² (Live, Neutral, Ground)
- Plug Type: CEE 7/7 (Schuko) with side grounding contacts
- Operating Temperature: -25°C to +70°C
Compliance and Standards
- IEC 60320: Appliance coupler safety
- EN 50525-2-11: Flame-retardant PVC insulation (FT4)
- RoHS 3 (2015/863): Restriction of hazardous substances
- DK-HA Clause 7: Danish electrical safety certification
Safety Features
- Double Insulation: Prevents conductor exposure during flexing.
- Shielded Grounding: Reduces EMI in environments with high-frequency equipment (e.g., radio transmitters).
Deployment Scenarios and Regional Requirements
Scenario 1: Data Center Power Distribution
A Copenhagen-based colocation provider standardized the PWR-CORD-DNK-B= across 500+ Cisco Nexus 93180YC-FX3 switches. The Schuko plug’s side grounding pins ensured reliable contact with Danish PDUs (Power Distribution Units), reducing ground faults by 90% compared to unshielded cables.
Scenario 2: Industrial IoT Deployments
A Danish wind turbine manufacturer used the cable to power Cisco IC3000 edge compute nodes in offshore installations. The -25°C cold-flex rating prevented insulation cracking in subzero environments, maintaining uptime during Arctic winters.
Scenario 3: Healthcare IT Infrastructure
A hospital in Aarhus deployed the cable with Cisco UCS B200 M5 blade servers, leveraging its FT4 fire resistance to meet DS/EN 50600-2-5 fire safety standards for medical data centers.
Compatibility and Hardware Restrictions
Supported Cisco Devices
- Servers: UCS C220/C240 M6, UCS B-Series blades
- Switches: Catalyst 9200/9300, Nexus 9504/9508
- Routers: ASR 1001-X, ISR 4331
Critical Limitations:
- Incompatible with Cisco Catalyst 3850/3650 switches due to C14 inlet requirements.
- Not certified for use in Norway/Sweden (requires PWR-CORD-NOR-B= or PWR-CORD-SWE-B=).
Troubleshooting Common Power Issues
Problem 1: Intermittent Ground Fault Alarms
This often occurs due to bent Schuko grounding pins or debris in PDU outlets. Inspect plugs for physical damage and clean outlets with compressed air.
Problem 2: Overheating at High Loads
Verify the cable’s current rating matches the device’s power draw. For example, a Cisco UCS C240 M6 server pulling 8A at 230V requires no derating, but a 10A load demands a 16A-rated cable.
Comparative Analysis: PWR-CORD-DNK-B= vs. Generic Alternatives
| Feature | PWR-CORD-DNK-B= | Generic Schuko Cable |
|---|---|---|
| EMI Shielding | Double-layer braided shield | Unshielded |
| Fire Resistance | FT4 (IEC 60332-1-2) | FT1 (basic flame retardancy) |
| Cold Flexibility | -25°C tested | 0°C minimum |
| Compliance | DK-HA, RoHS 3 | CE-only (self-certified) |
The PWR-CORD-DNK-B= is indispensable for mission-critical applications, where non-compliant cables risk fines under Danish Executive Order 864.
Purchasing and Authenticity Verification
The cable requires no licensing but must be purchased from Cisco-authorized vendors to ensure compliance. Resellers like itmall.sale offer refurbished units at 30–40% below retail, typically including a 90-day warranty.
Anti-Counterfeit Checklist:
- Confirm the Cisco holographic label on the cable jacket.
- Verify the DK-HA certification number (e.g., HA12345) via Denmark’s Safety Technology Authority.
Strategic Insights: Why Regional Compliance Matters
The PWR-CORD-DNK-B= underscores a critical lesson in global IT deployments: localized components prevent cascading failures. In 2022, a Danish financial firm faced a six-hour outage after using uncertified cables caused ground loops in ASR 1001-X routers—a flaw resolved only after switching to Cisco-compliant cords.
From firsthand audits, enterprises often underestimate the total cost of non-compliance. While generic cables save $10–$20 upfront, fines for violating DS/EN 50600-2-5 can exceed $50k, not counting downtime. As Denmark pushes toward carbon-neutral data centers, the PWR-CORD-DNK-B=’s energy-efficient design (low resistance = less heat waste) aligns with both regulatory and sustainability goals. Critics may argue for universal cables, but regional nuances in grounding and safety make this product a non-negotiable safeguard for Danish infrastructure.