Pentair iS4 Topside Panel [250ft Cable] [White] (521889)

Type:	Topside Panels
Mfr	Pentair Pool Products
Mfg Part #	521889
Hzn Part #	59-110-2760
Cord:	250 Foot Cable
Color:	White

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TAGS: pentairpool, topsides

Details

(DISCONTINUED BY MANUFACTURER)

SEE REPLACEMENT PART: OBSOLETE

Pentair iS4 Topside Panel [250ft Cable] [White] is used in pool and spa control systems where reliable signal, switching, user input, or equipment communication is required. Electronic and control-related parts should be selected by exact part number and system compatibility because similar panels, receivers, relays, antennas, and circuit boards may look alike but operate differently. This item is a practical replacement when the existing control component has failed, become intermittent, suffered weather exposure, or no longer communicates properly with the equipment it controls. The listed specifications for this item include 250ft Cable, White, which can help confirm the correct configuration before ordering. Before installation, verify the connected automation system, cable length, voltage or relay rating when applicable, and enclosure condition. Power should be disconnected before service, and installation should be completed by someone familiar with pool and spa electrical systems.

For this specific item, use part number 521889 as the primary reference when checking fitment. The vendor listed for this product is Pentair Pool Products, and the category is Topside Panels, which helps identify the most likely equipment area but should not replace direct comparison with the original part. If the old part is still available, compare connection points, mounting locations, color or finish, molded markings, and any printed service numbers before installing the replacement.

Replacement control or electrical component for the listed system
Helps restore equipment communication, switching, or user control
Match by part number, system family, cable length, and color where listed
Inspect wiring, terminals, seals, and enclosure condition during service
Electrical installation should be handled by a qualified technician

Pentair Pool Products – Pool Pumps, Filters, Heaters, Automation Systems and Parts

Who is Pentair Pool Products?

Pentair Pool Products is a global leader in pool and spa equipment, known for innovative, high-performance solutions used in residential and commercial pools. With decades of industry leadership, Pentair has built a reputation for engineering excellence, reliability, and energy-efficient technology. Their equipment is widely trusted by pool professionals and homeowners for maintaining clean, safe, and efficient pool systems.

What products does Pentair Pool Products specialize in?

Pentair specializes in a full range of pool and spa equipment, including pool pumps, filters, heaters, automation systems, cleaners, lighting, valves, and replacement parts. Their product lineup features industry-leading technologies such as variable speed pumps, cartridge and sand filtration systems, gas heaters, salt chlorine generators, and smart pool automation controls. These products are designed to optimize water circulation, filtration, and overall system performance.

Why choose Pentair Pool Products parts for your pool or spa?

Pentair products are known for durability, energy efficiency, and advanced technology. Their equipment is engineered to reduce energy consumption, improve water quality, and extend the lifespan of pool systems. Pool owners and professionals choose Pentair for reliable, high-performance solutions that simplify maintenance and lower operating costs.

How do you identify and choose the correct Pentair Pool Products part?

To select the correct Pentair part, it’s important to match your equipment model, part number, and system specifications such as horsepower, filter type, or connection size. Reviewing product manuals and compatibility ensures proper fit and performance. Choosing the right part helps maintain system efficiency and prevents costly issues.

Need help finding the right Pentair Pool Products part?

At Bath & Spa Parts Online, we carry a wide selection of Pentair Pool Products pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.