Integral Switch Location of SPD | APC PMG3S-A, PMP4DS-A, PMP3S-A

APC MODULAR PANEL PRODUCTS Surge Protective Device (SPD)

ELECTRICAL

WARNING

UNDERSIZED WIRING

(USE ONLY CONDUCTORS RATED 30 A OR GREATER.)

·The SPD is designed for connection to a 30 A (or greater) circuit breaker.

·The circuit breaker is the intended disconnect means for the SPD without integral disconnect option and provides over current protection for the connecting conductors.

·The circuit breaker maximum rating should not exceed the ampacity of the connecting conductors.

Failure to follow these instructions can result in death or serious injury.

INTEGRAL SWITCH

LOCATION OF SPD

Turn off all power supplying this equipment through the Panel Circuit Breaker or Primary Disconnect before working on or inside the equipment.

The integral switch is a second mechanical means for qualified maintenance personnel to isolate the entire surge suppressor to service the device’s components. The integral switch opens the phase and neutral connections to the SPD for additional protection.

Turn integral switch handle to the OFF position prior to opening the door of the unit. With the handle in the OFF position, the SPD will be disconnected from the circuit and the circuit will not be protected from surges.

Maintenance may now be performed on the SPD modules and associated parts. Upon completion of repairs, close the door of the unit and turn the handle to the ON position. Close the Panel Circuit Breaker or Primary Disconnect to power SPD.

Install SPD’s on the load side of the main overcurrent protection to comply with UL 1449 and the NEC.

Locate the SPD as close as possible to the circuit breaker being protected to minimize the wire length and optimize SPD performance. Avoid long wire runs so that the device will perform as intended. To reduce the impedance that the wire displays to surge currents, the phase, neutral, and ground conductors must be routed within the same conduit and tightly bundled or twisted together to optimize device performance. Avoid sharp bends in the conductors. See Figure 2.

Figure 2: Wiring Practice

Phases

To "protected" load(s)

SPD

Phase A

Phase B

Phase C

Neutral

Neutral bus

Neutral

Ground

Ground Ground bus

Interconnect wiring - Minimize length

- Avoid sharp bends

PMP3DS-A, PMG3DS-A, PML3S-A, PMG4DS-A, PMF4S-A specifications

The APC PML3DS-A, PMP3S-A, PMP4S-A, PMG4S-A, and PMP4DS-A are part of a product line designed for power management and distribution in various applications, from data centers to industrial setups. Each model boasts unique features and technologies that cater to specific operational needs while prioritizing efficiency, reliability, and safety.

The APC PML3DS-A is a highly efficient power management solution suitable for small- to medium-sized enterprises. It features intelligent monitoring capabilities, allowing users to track power usage and optimize efficiency. The model integrates advanced surge protection technology, safeguarding equipment from voltage spikes. With a compact design, it offers flexibility in placement while still providing robust operational support.

The PMP3S-A model focuses on scalability, making it an excellent choice for businesses anticipating growth. This power management unit is compatible with multiple configurations, allowing seamless integration into existing systems. One of its standout features is the energy metering functionality, enabling precise tracking of energy consumption. This feature is invaluable for organizations seeking to reduce costs and improve sustainability initiatives.

Next in the lineup, the PMP4S-A offers enhanced power distribution capabilities, designed to handle higher loads. This unit is equipped with modular design elements, allowing for customization based on specific requirements. Additionally, it features real-time load balancing technology that ensures even distribution of power across connected devices, reducing the risk of overload and enhancing system stability.

The PMG4S-A stands out for its advanced management interface, providing users with a user-friendly experience. Its web-based management system allows remote monitoring and control, facilitating rapid response to any issues that arise. The PMG4S-A also includes built-in redundancy features, ensuring uninterrupted power supply and enhancing overall system resilience.

Lastly, the PMP4DS-A is engineered with advanced diagnostic capabilities, identifying potential issues before they can impact performance. This proactive approach to power management is crucial for maintaining operational integrity in critical systems. It also provides advanced communication options, integrating seamlessly with existing network infrastructure for improved management and reporting.

Together, these models from APC represent a comprehensive solution for power management, balancing performance, scalability, and safety across various applications. Their advanced features and technologies make them essential components for businesses looking to enhance their operational efficiency and reliability in power distribution.