Operation

Figure 8: Rear of Diagnostic Circuit Board

Surge counter

 

reset switch

 

(white)

 

RJ45

Dry

Connectors

contacts

Dry Contacts

The SurgeArrest® series SPDs come standard with dry contacts. The connection for the dry contacts is located on the back of the diagnostic display panel (lower right corner). The dry contacts are 3-position, Form “C” type with Normally Open, Normally Closed and Common connections. In the unpowered state the contact is closed between terminals NC and COM. This is also the alarm condition. The opposite state, closed between terminals NO and COM, indicates that power is on to the unit and that no alarm condition exists (See Table 5). These contacts can be used for remote indication of the SPD’s operating status to a computer interface board or emergency management system. Also, these contacts are designed to work with the SPD remote monitor option described below.

The dry contacts are designed for a maximum voltage of 24 Vdc / 24 Vac and a maximum current of 2 A. Higher energy applications may require additional relay implementation outside the SPD. Damage to the SPD’s relay caused by use with energy levels in excess of those discussed in this instruction bulletin are not covered by warranty. For application questions, contact APC Technical Support at 1-800-800-4272.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

•Use 600 Vac rated dry contact wiring.

•Dry contact wiring must have less than 1/16 in. (1.6 mm) exposed wire from the dry contact block.

•Maintain at least 1.0 in. (25 mm) separation between dry contact wiring and the power wiring in the enclosure.

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

Care must be taken in installing the dry contact wiring because the terminals are on a moving door. Avoid the door hinge, any switches, and the high voltage areas of the enclosure when routing the wiring. To avoid the door hinge, tie wrap any dry contact wiring to the existing cable harness which crosses the hinge. Once the dry contact wiring is secured on a non-moving point of the enclosure, it is the user’s responsibility to maintain at least 1.0 in. (25 mm) separation between 600 Vac rated dry contact wiring and the power wiring in the enclosure.

Table 5: Dry Contact Configuration

Alarm Contact Terminals

Contact State with Power Removed

 

 

NC

Normally closed

 

 

COM

Common

 

 

NO

Normally open

18

Installation and Operation Manual

Page 17 Page 19
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Image 18
APC PMP3XS-B, PMJ3XS-B, PMH3XS-B, PML3XS-B, PMG3XS-B, PMF3XS-B operation manual Dry Contacts, Dry Contact Configuration
Page 17 Page 19

PML3XS-B, PMJ3XS-B, PMH3XS-B, PMF3XS-B, PMP3XS-B specifications

The APC PMG3XS-B, PMJ3XS-B, PMH3XS-B, PML3XS-B, and PMF3XS-B are part of APC’s renowned line of power management solutions, designed to provide effective power protection and management for sensitive electronic equipment. Each model in this series offers unique features tailored to different application needs, yet they all share a commitment to the core standards of reliability, efficiency, and user-friendliness.

Starting with the PMG3XS-B, this model is equipped with advanced power conditioning technology, ensuring that connected devices receive a clean and stable power supply. Its compact design allows for easy installation in various environments, making it suitable for both home and office use. Featuring an LCD display, users can monitor the device's performance in real-time, providing insights into power usage and status alerts.

The PMJ3XS-B is designed with enhanced surge protection capabilities, safeguarding electronics from sudden voltage spikes. It features a robust build quality that ensures durability and longevity, making it an ideal choice for users needing reliable equipment for critical operations. Its smart charging capability optimizes power usage while maintaining the health of connected devices.

The PMH3XS-B emphasizes high-efficiency power management, with energy-saving features that reduce unnecessary power consumption. This model supports multiple output configurations, accommodating various plug types and ensuring versatility in managing different devices. It's particularly beneficial for businesses aiming to minimize energy costs while sustaining performance.

For users seeking a lightweight and portable solution, the PML3XS-B stands out. Perfect for on-the-go professionals, this model offers a slim design without compromising essential power management features. Its compatibility with various devices makes it a favorite for users who require power solutions across different locations.

Lastly, the PMF3XS-B combines all the strengths of its counterparts, focusing on advanced filtering technology to eliminate power line noise. This feature is crucial for sensitive equipment, ensuring optimal performance and longevity. With its comprehensive monitoring capabilities, users can easily assess power quality and make informed decisions about their energy usage.

In summary, the APC PMG3XS-B, PMJ3XS-B, PMH3XS-B, PML3XS-B, and PMF3XS-B provide a comprehensive suite of power management options designed for diverse applications. Their commitment to performance, efficiency, and user convenience makes them an exceptional choice for anyone looking to protect their electronic devices effectively.
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