Appendices 43

Appendix C: Circuit Breakers

The PM IPDU circuit breakers are designed to turn the power off to some or all of the PM IPDU outlets in case the rated current is exceeded. The circuit breaker mechanism for each PM IPDU model is explained the in the following sections.

PM IPDU Units with One Circuit Breaker

Only one circuit breaker is used for the following units:

PM10-15A IPDU

PM10-20A IPDU

PM10-L20 IPDU

PM20-20A IPDU

PM20-L20 IPDU

PM20i-16A IPDU

PM20i-20A IPDU

In the event of a current overload in any of these units, the entire unit shuts down, causing all outlets to disconnect.

NOTE: The PM42 IPDU has two UL listed fuses on each phase bank that are not replaceable. There is also a sensor circuit that acts as a backup by monitoring total current and resetting all receptacle relays in the event of a current overage.

PM10i IPDU

Some versions of the PM10i IPDU (10, 15, 16 and 20 amps) have two circuit breakers each. Both circuit breakers are designed to protect different phases of the same circuit inside the unit. If either one of the two circuit breakers trips, the entire unit will shut down.

PM10-L30A IPDU

The PM10-L30A IPDU has two 15-amp circuit breakers. The first circuit breaker controls outlets 1 through 5 and the power supply to the controller; the second circuit breaker controls outlets 6 through 10. If the total current flow to outlets 6 through 10 exceeds 15 amps due to equipment connected to these outlets, then the second circuit breaker will trip causing outlets 6 through 10 to shut down. This does not affect outlets 1 through 5, which are controlled by the first circuit breaker.

If, however, current overload causes the first circuit breaker to trip, then the entire power unit shuts down because the power supply is also tied to the first circuit breaker.

Refer to Table C.5 to determine the time it takes for the circuit breaker to trip based on the amount of current overload.

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Avocent PM IPDU manual Appendix C Circuit Breakers, PM Ipdu Units with One Circuit Breaker, PM10i Ipdu

PM IPDU specifications

Avocent PM IPDU (Intelligent Power Distribution Unit) is a cutting-edge solution designed for efficient power management and monitoring in data centers and IT environments. These devices are essential for businesses aiming to optimize power consumption, enhance uptime, and improve overall operational efficiency.

One of the primary features of the Avocent PM IPDU is its ability to provide real-time monitoring of power usage at the outlet level. This granularity allows IT professionals to track the power consumption of individual devices and make informed decisions regarding resource allocation and load balancing. The device supports multiple power distribution configurations, making it versatile enough to suit a variety of setups.

Incorporating advanced technologies, the Avocent PM IPDU supports intelligent alerts and notifications, enabling proactive management of potential power-related issues. Users can configure customizable thresholds for power consumption, and the system will automatically send alerts if these thresholds are breached. This proactive approach helps in minimizing downtime and averting potential outages.

Another notable characteristic is the comprehensive remote management capabilities of the Avocent PM IPDU. Users can access the unit's management interface via a web-based portal, which provides intuitive dashboards displaying real-time data on power usage, temperature, and environmental conditions. This remote access feature is essential for IT teams managing distributed environments or multi-site operations, as it facilitates quick and effective responses to power concerns.

The Avocent PM IPDU also integrates seamlessly with existing management systems, offering compatibility with various standards and protocols. This interoperability ensures that organizations can leverage their current infrastructure while enhancing their power management capabilities. Additionally, the unit supports power metering and reporting features, enabling detailed analysis of energy consumption trends over time.

Furthermore, Avocent PM IPDU models come equipped with features such as outlet-level control, allowing IT administrators to perform remote power cycling, thus increasing operational efficiency and reducing the need for on-site visits. The units are designed with robust security features, including customizable user permissions and encryption protocols, ensuring that power management operations are protected from unauthorized access.

Overall, the Avocent PM IPDU is an essential tool for organizations striving to improve their power management practices. With its advanced monitoring, remote management capabilities, and robust security features, it is well-suited for modern data center environments where efficiency, reliability, and operational effectiveness are paramount.