Field

Description

 

 

Default relay output

The label used, by default, for any new output types

label

added using this custom output definition.

 

To modify a label, see “Output control sensor

 

settings” on page 57.

Unpressed value

The text describing the relay in its unpressed state.

Pressed value

The text describing the relay in its pressed state.

Active time (seconds)

The time in seconds that the relay remains in a

 

pressed state before reverting to the unpressed state.

Button contact type

Specifies whether the relay is in an on or off state

 

when pressed.

c.Enter the appropriate values for the Button Relay action.

d.Click OK to add this output action to the list of available output actions.

•Switch Relay actions cause the relay device to switch from its current state (On or Off) to its alternate state. Once switched, the relay remains in the new state until another switch action changes its state again. To create a Switch Relay action:

a.Select Switch Relay and click OK.

b.The Add Switch Relay Output window features the following fields and controls:

Field

Description

 

 

Relay output type

The name of the custom output action definition.

 

Once defined, the Output Type label appears only in

 

the Relay Output Type selection list when

 

specifying output control external port settings.

Default relay output

The label used, by default, for any new output types

label

added using this custom output definition.

 

To modify a label, see “Output control sensor

 

settings” on page 57.

On value

The text that describes the relay in its on state.

Off value

The text that describes the relay in its off state.

Switch initial state

The state (On or Off) of the relay at the time the

 

output action is assigned.

 

This is also the state to which the switch is set when

 

the appliance is turned on, regardless of what state

 

the switch was in when the appliance was turned off.

c.Enter the appropriate values for the Switch Relay action.

d.Click OK to add this output action to the list of available output actions.

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APC NBRK0550, NBRK0450, NBRK0570 manual Field Description
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NBRK0550, NBRK0450, NBRK0570 specifications

APC offers a range of high-quality uninterruptible power supplies (UPS) designed to provide reliable power protection. Among these options are the NBRK0550, NBRK0450, and NBRK0570 models, each equipped with advanced features aimed at ensuring continuous power availability for critical devices.

The APC NBRK0550 is built to offer 550 VA / 330 W of output power. It boasts a compact design, making it suitable for both home and small office use. One of its main features includes Automatic Voltage Regulation (AVR), which stabilizes voltage levels to protect connected equipment from surges, spikes, and brownouts. The device includes several outlets for easy connection of multiple devices, and its LCD display provides real-time information about power conditions, battery status, and estimated runtime.

Next in line is the APC NBRK0450 model, which provides 450 VA / 270 W of power. This model is highly efficient and also integrates AVR technology. Its lightweight design facilitates easy movement, making it a preferred choice for users who need portable power solutions. The NBRK0450 offers a user-friendly interface, featuring LED indicators that will alert users about battery charge levels and operational status. The unit ensures reliable performance, ideal for protecting networking equipment, personal computers, and other sensitive electronics.

Lastly, the APC NBRK0570 stands out with its impressive output of 570 VA / 340 W. Like its counterparts, it features AVR technology for enhanced voltage stability. The NBRK0570 is designed for scalability, perfectly accommodating additional devices with its multiple outlets. The model is equipped with a USB port, allowing for easy connectivity with monitoring software for real-time tracking of power usage and battery health. Its advanced battery management system extends battery life and optimizes performance, ensuring that users remain connected during outages.

All three APC models—NBRK0550, NBRK0450, and NBRK0570—are designed with user-friendly interfaces, making them easy to manage. They prioritize essential features such as surge protection, battery health monitoring, and smart shutdown capabilities. The integration of robust technologies in these products ensures a reliable power supply, safeguarding electronic devices against unexpected power failures and contributing to seamless operation in both home and office environments.
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