Mersen EAFBX303BP3-SP - Mersen Enclosed Disconnect Switches are designed to meet customer's requirements for compact and durable individual disconnecting means. Both fusible and non-fusible versions are available in a variety of enclosure types. Mersen features NEMA 4X non-metallic enclosures that are extremely durable and provide the ultimate protection for harsh environments and conditions. The enclosed disconnect switch range offers safety, ease of installation, space savings and operational convenience to end-users. 30 amp J X FDS (with AUX) disconnect with black pistol handle in a NEMA 1 enclosure.
Mersen

EAFBX303BP3-SP

Alternate Item Number: 782001459338

UPC: 782001459338

Contact for Pricing

Overview

The **Mersen EAFBX303BP3-SP Enclosed Disconnect Switch** is a high-performance, industrial-grade solution engineered to deliver uncompromising safety, durability, and operational efficiency in demanding electrical systems. Designed for professionals who prioritize reliability, this 30 ampere enclosed disconnect switch features a robust NEMA 1 enclosure and a sleek black pistol handle, ensuring both functionality and ease of use. As part of Mersen’s renowned line of disconnect switches, this model exemplifies the brand’s commitment to innovation and quality, meeting the rigorous demands of modern industrial, commercial, and utility applications. **Key Features and Benefits:** This enclosed disconnect switch is built to withstand the challenges of harsh environments while providing critical protection for electrical circuits. The NEMA 1 enclosure offers a balance of durability and cost-effectiveness, making it ideal for indoor applications where exposure to dust, dirt, and non-corrosive moisture is a concern. Unlike standard open-frame switches, the enclosed design ensures compliance with safety standards and reduces the risk of accidental contact, enhancing workplace safety for technicians and operators alike. The **30 ampere rating** makes the Mersen EAFBX303BP3-SP suitable for a wide range of medium-duty applications, including motor control circuits, HVAC systems, lighting panels, and machinery disconnects. Its compact footprint allows for space-efficient installations in control panels, switchgear, and distribution boards, optimizing cabinet layout without sacrificing performance. The **black pistol handle** provides ergonomic operation, enabling quick and intuitive switching between ON and OFF positions—even when wearing gloves—thereby improving operational convenience and reducing downtime during maintenance or emergency shutdowns. **Versatility and Compliance:** Mersen offers this enclosed disconnect switch in both **fusible and non-fusible versions**, allowing end-users to select the configuration that best aligns with their system protection requirements. Fusible models provide overcurrent protection by integrating fuses directly into the switch, while non-fusible versions are ideal for applications where external protection devices are already in place. This flexibility ensures seamless integration into new installations or retrofits, accommodating diverse electrical design preferences. Compliance with industry standards is a cornerstone of Mersen’s engineering philosophy. The EAFBX303BP3-SP meets or exceeds key certifications, including UL and CSA listings, ensuring it is suitable for use in North American markets and beyond. Its design also aligns with NEC (National Electrical Code) requirements, providing peace of mind for electrical contractors and facility managers responsible for code-compliant installations. **Industry Applications and Use Cases:** The versatility of the Mersen EAFBX303BP3-SP makes it a preferred choice across multiple sectors. In **manufacturing plants**, it serves as a reliable disconnect means for machinery, enabling safe maintenance and emergency shutdowns. Within **commercial buildings**, such as offices, retail spaces, and data centers, this switch provides a secure method for isolating electrical circuits during servicing or troubleshooting. In **water treatment facilities** and **agricultural operations**, where environmental conditions can be challenging, the NEMA 1 enclosure offers essential protection against moisture and particulate contamination. For **electrical contractors and system integrators**, the ease of installation is a significant advantage. The switch is designed for straightforward mounting and wiring, with clear labeling and accessible terminals that simplify the connection process. Whether specified for new construction or replacement projects, the EAFBX303BP3-SP reduces installation time and labor costs, contributing to overall project efficiency. **Why Choose Mersen?** Mersen is a global leader in electrical protection and power management solutions, with a legacy of innovation spanning over a century. Known for its high-quality components, the company’s disconnect switches are trusted by engineers, facility managers, and electrical professionals worldwide. The EAFBX303BP3-SP reflects Mersen’s dedication to performance, safety, and durability—qualities that are critical in industrial environments where reliability cannot be compromised. By selecting the Mersen EAFBX303BP3-SP Enclosed Disconnect Switch, end-users gain a product that not only meets their technical requirements but also delivers long-term value through reduced maintenance, enhanced safety, and operational convenience. Whether deployed in a factory, warehouse, or commercial facility, this switch provides the peace of mind that comes with a trusted brand and a proven track record in electrical protection.
  • 30 ampere enclosed disconnect switch for industrial and commercial applications
  • NEMA 1 enclosure for indoor protection against dust, dirt, and non-corrosive moisture
  • Available in fusible and non-fusible versions for flexible circuit protection
  • Black pistol handle for ergonomic, glove-friendly operation
  • Compact design for space-efficient installations in control panels and switchgear

Specifications

Color
Black
Current Rating
30 A
Material
Non-Metallic
Nema Rating
NEMA 1
Poles
3P
Series
Enclosed Disconnect Switches
Package Dimensions (L x W x H)
15.1 IN x 12.6 IN x 8.4 IN
Package Dimensions (L x W x H)
38.354 cm x 32.004 cm x 21.336 cm
Package Weight (Imperial)
19.050 L
Package Weight (Metric)
8.641 kg
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Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.