Installing a fuse in the NH2 Fuse Module

Insert the fuse into the fuse module until the tangs on each end of the fuse bottom out in the socket.

Mounting holes for Fuse Alarm Cable

Figure 3.7-6 NH2 Fuse Connections

DC Load Return Module Installation

The modules that are attached to the Return bus are designed to provide a convenient means of attaching the dc return cables. The battery return module has a shunt installed and the load return modules do not. Table 3.7- will assist you in selecting the correct load return module.

Part

Description

Lug Size

Number of

Number

 

 

Connections

0M-2969

Small Load Return Bus

M5 threaded holes on 1.59 mm (5/8 in.)

40 M5; 1 set

 

 

centers.

of M8 holes

0M-2960

Large Load Return Bus

M8 threaded holes on 2.54 mm (1 in.)

6

 

 

and 44.5 mm (1-3/4 in.) centers

 

Table 3.7-2 Load Return Selector Table

To install either return module, loosen the 4 M5 X 8 Phillips head screws on the back of the module. The slotted screws will allow the module to be aligned precisely. Position the module in an open return position in the unit. Align the holes in the return module with the holes in the return bus and insert 2 M8 X 20 cap screws with lock washers and flat washers. Align the holes in the return module with the holes in the front of the cabinet and insert 2 M5 Phillips screws. Tighten the M8 cap screws, then the M5 screws and finally the M4 screws in the slots on the back of the module.

Magnum XS 450 Power System –48 VDC User’s Manual

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American Power Conversion XS 450 -48 Installing a fuse in the NH2 Fuse Module, DC Load Return Module Installation
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XS 450 -48 specifications

The American Power Conversion (APC) XS 450 -48 is a reliable and efficient power supply solution designed for critical applications requiring a consistent and stable power source. This solution is particularly beneficial for telecommunications, data centers, and industrial settings where power reliability is paramount.

One of the key features of the XS 450 -48 is its ability to deliver 450 watts of continuous power, ensuring that connected devices receive uninterrupted power supply. Its 48-volt output makes it ideal for telecom requirements, where 48V systems are standard. The unit provides a compact and space-saving design, making it suitable for installation in rack-mounted configurations, optimizing the utilization of valuable real estate in server rooms or equipment racks.

The XS 450 -48 utilizes advanced technologies that enhance its performance and reliability. It is equipped with an active power factor correction (PFC) system that significantly reduces harmonic distortion. This feature not only improves system efficiency but also complies with various regulations concerning power quality. Additionally, the power supply includes built-in over-voltage protection, over-current protection, and short-circuit protection, ensuring that both the power supply and the connected devices are safeguarded against electrical faults.

The unit is designed for high efficiency, often exceeding 90% under full load conditions. This not only reduces energy costs but also minimizes heat generation, contributing to a quieter operation environment. The XS 450 -48's intelligent thermal management system allows it to operate in a range of temperatures, making it highly versatile and adaptable to varying environmental conditions.

Furthermore, monitoring and management capabilities are integrated into the XS 450 -48 with optional external monitoring systems. These systems provide critical insights, allowing technicians to track real-time performance metrics, detect potential issues early on, and perform preventive maintenance.

In conclusion, the American Power Conversion XS 450 -48 stands out as a robust power supply solution that combines reliable performance, advanced protection features, and high efficiency. Its design caters to the specific needs of telecommunications and data centers, making it an indispensable asset for maintaining the uptime and integrity of critical systems. With its range of features and reliability, the XS 450 -48 continues to be a preferred choice among professionals in the field.
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