WR-3991-8 UNIVERSAL-DOUGLAS Din Rail Mounter Relay Control

Review UNIVERSAL-DOUGLAS Din Rail Mounter Relay Control Terminal

The Universal-Douglas WR-3991-8 is a versatile and reliable full-2 way Din Rail Mounted Relay Control Terminal, engineered to deliver optimal performance in a range of industrial automation applications. This terminal is designed with a compact size of 1.5 inches in width and 2.25 inches in height, making it an ideal choice for space-constrained control panels.

The WR-3991-8 is a 2-pole, 3-position, 2-way relay, which means it can switch two circuits independently with three possible positions for each circuit: normally open (NO), normally closed (NC), and common (COM). The relay contacts are rated for a maximum operating voltage of 240VAC and a current of 10A, ensuring it can handle a wide range of industrial applications.

This Din Rail Mounted Relay Control Terminal features a rugged construction for long-lasting performance in harsh environments. The contacts are made from silver-plated brass, providing excellent conductivity and durability. The terminal also includes a clear, removable cover with a window to allow easy visual inspection of the relay contacts.

The WR-3991-8 includes two sets of Din Rail Mounting Clips, allowing it to be securely installed on standard Din Rail systems. The terminal also includes a built-in coil terminal block, three NO/NC terminal blocks, and a common terminal block, providing ample space for wiring connections.

The Universal-Douglas WR-3991-8 is a high-quality, reliable solution for controlling circuits in industrial automation applications. Its compact size, rugged construction, and versatile functionality make it a popular choice among engineers and technicians in various industries. Whether you're looking to control motors, solenoids, or other electrical components, this Din Rail Mounted Relay Control Terminal is an excellent choice for your project.

Pros and Cons of buying a Universal-Douglas WR-3991-8 Full-2way Din Rail Mounted Relay Control Terminal

The Universal-Douglas WR-3991-8 is a full-2way Din Rail Mounted Relay Control Terminal. This relay is widely used in various industrial automation applications due to its features and benefits. In this discussion, we will explore the pros and cons of buying this relay to help you make an informed decision.

1. Versatile Application: The Universal-Douglas WR-3991-8 can be used in various applications, making it a versatile choice for industrial automation. It can be used for controlling motors, solenoids, and other electrical loads.

2. Easy Installation: The relay is mounted on a Din Rail, making it easy to install, maintain, and replace. It saves time and effort in wiring and installation as compared to other types of relays.

3. High Reliability: The relay is known for its high reliability and durability. It can withstand harsh industrial environments and operate continuously without failure.

4. Cost-Effective: The Universal-Douglas WR-3991-8 is a cost-effective solution for controlling electrical loads in industrial applications. It offers good value for money.

5. Safety: The relay provides safety by isolating the control circuit from the load circuit, preventing electrical hazards.

1. Limited Load Capacity: The Universal-Douglas WR-3991-8 has a relatively low load capacity as compared to other relays in its class. Therefore, it may not be suitable for applications requiring high current or power.

2. Limited Operating Temperature Range: The relay has a limited operating temperature range, making it unsuitable for extreme temperature environments.

3. Limited Number of Contacts: The relay has a limited number of contacts, which may not be sufficient for complex applications requiring multiple contacts.

4. Requires External Power Supply: The relay requires an external power supply, which may add to the overall cost and complexity of the system.

In conclusion, the Universal-Douglas WR-3991-8 Full-2way Din Rail Mounted Relay Control Terminal is a versatile, easy-to-install, reliable, and cost-effective solution for controlling electrical loads in industrial applications. However, it has limitations in terms of load capacity, operating temperature range, and the number of contacts. Based on the pros and cons discussed, it is recommended for applications where the load capacity and operating temperature range are not critical factors and the number of contacts required is within the limit of the relay. For applications requiring high current, power, or a larger number of contacts, it is recommended to consider other relay options with higher specifications.

Details:

Manufacturer:universal-douglas, our part number:Invar-3991-8, catalog number:wr-3991-8, condition: new, condition notes:new in box, combined shipping:yes, spec sheet: accessories included: not retail price:$89. Items purchased without making special shipping arrangements will not be honored. Combined shipping, some orders qualify for combined shipping discounts. Universal-douglas WR-3991-8 FULL-2WAY din rail mounter, relay control terminal new page 1.

specifications genpurrelays:

• brand: Universal-douglas
• mpn: Wr-3991-8
• part type: Control
• color: Black
• product height: 0.88
• product length: 2.63
• product width: 2.00
• upc: 703158653615

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• policy: no returns

offer genpurrelays:

• sold #: 20
• price: $59.50
• item condition: New
• started: june 11, 2025
• availability: in stock
• best offers: true
• in stock #: 1
• options: ship-to-home

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general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays