Indicates | Cooper Bussmann BU-905U-L instruction

Cooper Bussmann BU-905U-L Wireless I/O Installation Manual

The front panel contains the following components:

SMA Antenna Connector at Top of Unit

Indicator LEDs

RS232 Configuration Port

Rotary Switch for Setpoint Settings

The triangle on the rotary switch indicates the current position, for example:

NOTE: To avoid damaging the rotary switch, use a screwdriver to change the position.

The rotary switch controls the setpoint levels on the Analog and Thermocouple inputs.

The LEDs on the front panel indicate the unit status:

LED Status	Indicates
None	No power supply.
OK LED Green	Current status of the unit OK.
OK LED Red	Fault condition detected in unit.
TX Led Flashes	Transmitting Message.
PG LED on	Configuration Cable Connected.
Input LED ON	Input LEDS (i.e., D1, D2, SP, AZ.) light when the corresponding input is active.
	D1	Digital Input 1 is active (Low).
	D1	Digital Input 1 is active (Low).
	D2	Digital Input 2 is active.
	SP	Analog Setpoint is active.
	AZ	Analog Input is zero mA
All LEDs medium flash	Medium speed flash (1.6Hz) indicates the module is halfway through the configuration process.
	Medium flash also happens when you set the rotary switch to position 0 when powering on the unit.

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3A1580Rev1.6

BU-905U-L specifications

The Cooper Bussmann BU-905U-L is a critical component known for its reliable performance in various electrical applications. This fuse is designed to protect circuits from overloads and short circuits, ensuring the safety and integrity of electrical systems in residential, commercial, and industrial settings.

One of the main features of the BU-905U-L is its high breaking capacity, which allows it to effectively interrupt excessive current flow without damaging connected devices. This feature makes it suitable for use in demanding environments where reliable protection is crucial. The fuse is built to handle transient events, making it ideal for applications subject to short bursts of high current.

The fuse utilizes advanced materials and technologies to enhance its durability and efficiency. Its construction includes a robust, non-combustible housing that offers excellent thermal resistance and mechanical strength. This ensures the fuse can withstand harsh operating conditions while maintaining its protective capabilities. The BU-905U-L is also designed for quick and easy replacement, minimizing downtime during maintenance.

Another significant characteristic of the BU-905U-L is its thoughtful design for ease of installation. It features a standard size that is compatible with various fuse holders, allowing for a seamless integration into existing systems. Additionally, the fuse is marked with clear ratings, enabling users to quickly identify its specifications for proper selection and installation.

In terms of electrical ratings, the BU-905U-L is designed to handle a specific voltage and current, which makes it suitable for a diverse range of applications, including motor protection, lighting circuits, and power distribution systems. These fuses come with various current ratings, offering flexibility for different load requirements.

Moreover, built on a commitment to safety and quality, Cooper Bussmann ensures that the BU-905U-L meets stringent industry standards and certifications. This not only guarantees the reliability of the product but also provides peace of mind to users knowing that their electrical systems are well protected.

In summary, the Cooper Bussmann BU-905U-L fuse combines high performance, advanced material technology, and user-friendly characteristics, making it an invaluable component in any electrical system. Whether for industrial machinery or everyday electrical circuits, this fuse provides essential protection, ensuring safety and reliability in energy management.