Cisco PWR-C1-1100WAC Power Supply – 1100W, AC, Hot-Swappable

In modern enterprise networks, reliable power is the backbone of uninterrupted operations. Network switches, particularly high-performance models like the Cisco Catalyst 3850 series, require dependable and efficient power sources to maintain maximum uptime. The PWR-C1-1100WAC Cisco Power Supply For 3850 is a robust solution designed to meet these demands. Built with enterprise-grade reliability, high power efficiency, and hot-swappable capability, it ensures that your switch operates seamlessly, even in mission-critical environments. Whether deployed in a corporate data center, an educational institution, or a large-scale service provider network, this power supply is engineered to deliver consistent performance with minimal downtime.

Detailed Overview of PWR-C1-1100WAC Cisco Power Supply For 3850

The PWR-C1-1100WAC is an internal, field-replaceable AC power supply module specifically designed for Cisco Catalyst 3850 series switches. It delivers up to 1100 watts of output power, which is more than sufficient for powering high-density switch configurations with multiple connected devices drawing Power over Ethernet (PoE) or PoE+. One of the standout features of this unit is its hot-swappable design, meaning it can be replaced without shutting down the entire switch — a critical advantage in environments where uptime is non-negotiable.

In terms of build quality, the PWR-C1-1100WAC is crafted from durable, heat-resistant materials, with a well-ventilated chassis to ensure optimal airflow and cooling. Cisco has integrated advanced safety mechanisms, including overvoltage, overcurrent, and over-temperature protection. The efficiency rating is high, which means reduced energy consumption and lower operating costs over the lifetime of the device. It is compatible with both front-to-back and back-to-front airflow configurations, depending on the switch model and rack setup.

Another notable aspect is its compatibility with redundant power configurations. The Cisco Catalyst 3850 series supports dual power supplies, allowing you to install two PWR-C1-1100WAC units for load sharing or redundancy. In the event of a failure in one unit, the second takes over instantly, avoiding service interruptions.

Applications of PWR-C1-1100WAC Cisco Power Supply For 3850

The PWR-C1-1100WAC is ideal for network environments where uninterrupted connectivity is essential. Some common use cases include:

• Enterprise Core Networks – powering aggregation or distribution layer switches in high-traffic environments.
• Campus and Educational Institutions – supporting PoE devices like access points, IP phones, and surveillance cameras across large campuses.
• Service Providers – delivering reliable power for access and aggregation points in ISP networks.
• High-Availability Data Centers – ensuring redundancy for mission-critical operations.

Because of its PoE and PoE+ support, it is especially suited for powering devices directly from the switch without the need for additional electrical wiring.

Ports and Connectivity

The PWR-C1-1100WAC is a power module rather than a data interface, so it does not have traditional Ethernet or fiber ports. Instead, it features:

• AC Input Port – a standard power socket for connection to an AC power source, supporting 100–240V input.
• Integrated Connection Interface – designed to slide into the Catalyst 3850’s internal power supply slot, ensuring seamless electrical and mechanical integration.
• Cooling Ventilation Ports – positioned to align with the switch’s airflow design.

These connection points are engineered for easy installation and removal, making it simple to maintain or upgrade without special tools.

Build Quality and Reliability

Cisco products are known for their robust engineering, and the PWR-C1-1100WAC is no exception. The module is tested to meet rigorous industry standards for temperature, humidity, vibration, and power fluctuation tolerance. It uses high-grade capacitors and solid-state components for extended operational life. The cooling system is highly efficient, with minimal noise output while maintaining optimal thermal performance. This combination of hardware durability and intelligent design ensures that the PWR-C1-1100WAC can operate reliably for many years, even in challenging conditions.

Practical Insights

• How Redundant Power Enhances Network Uptime: One of the most valuable features of the PWR-C1-1100WAC is its ability to work in a redundant configuration. By installing a second identical power supply in the same switch, you create a failover system. This setup means that if one module fails or requires maintenance, the other takes over instantly without service interruption. For organizations with 24/7 operations, this capability is essential.
• Calculating PoE Budget with the PWR-C1-1100WAC: When planning network deployments, understanding your available PoE budget is critical. The PWR-C1-1100WAC can supply enough power to support numerous PoE+ devices, but actual capacity depends on the switch configuration. Network administrators should calculate the total wattage needed by all connected PoE devices and ensure it falls within the 1100W output limit, factoring in switch consumption.

Comparison with Similar Cisco Power Supplies

From the table, it’s clear that the PWR-C1-1100WAC is the most suitable choice for high-demand PoE scenarios within the 3850 series lineup.

Technical Specifications – PWR-C1-1100WAC Cisco Power Supply For 3850

FAQ – PWR-C1-1100WAC Cisco Power Supply For 3850

1. What switches are compatible with PWR-C1-1100WAC?
   It is compatible with all Cisco Catalyst 3850 series models.
2. Can I use it with a Catalyst 9300 switch?
   No, it is designed for the 3850 series. The 9300 series uses different power supply models.
3. Does it support PoE+?
   Yes, it can supply enough power for high-density PoE+ device deployments.
4. Is it hot-swappable?
   Yes, you can replace it without shutting down the switch.
5. What is the benefit of using two PWR-C1-1100WAC units?
   Redundancy or load sharing for improved uptime and reliability.
6. What’s the input power range?
   100–240V AC, 50–60Hz.
7. Can I install it without special tools?
   Yes, it is designed for easy installation without special equipment.
8. How heavy is the unit?
   Approximately 2.1 kg.
9. Does it include the AC power cable?
   This depends on the reseller; ITMan provides it with the required cable.
10. What is its expected lifespan?
    With proper usage and cooling, it can last for many years, often exceeding the operational life of the switch itself.

Conclusion

The PWR-C1-1100WAC Cisco Power Supply For 3850 is an essential component for enterprises seeking high-capacity, reliable power delivery for their network infrastructure. With its 1100W output, PoE+ support, hot-swappable design, and redundant configuration capability, it ensures maximum uptime and operational efficiency. Whether you are expanding your network or replacing an existing power module, this unit offers the performance and reliability that Cisco hardware is known for. At ITMan, we supply the PWR-C1-1100WAC with genuine Cisco quality assurance, ready to support your mission-critical deployments.