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Overview
- UL 98 rated non-fusible disconnect switch
- 600 VAC, 30A, 3-pole configuration
- Supports motor disconnect up to 10 HP (240V) and 20 HP (480V)
- Flexible handle placement and adjustable shaft depth
- UL listed, CE marked, manufactured in the USA
Specifications
AC Voltage Rating | 600 V |
Amperage Rating | 30 A |
Application | Service entrance or main panel disconnects “Make and break” power circuit applications on load Electrical isolation Safety switch |
Brand Name | Mersen |
Connection | Box |
Current Rating | 30 A |
Maximum Operating Temperature | 40 C |
Minimum Operating Temperature | -5 C |
Mounting | Base Mounted |
Mounting Type | Direct Screw Mount |
Mounting Type | Front |
Mounting Type | Front Operation |
Number Of Poles | 3 |
Poles | 3-pole |
Poles | 3 |
Series | M30U3 |
Size | 3.94 x 2.76 x 2.22 in |
Size | 100.076 x 70.104 x 56.388 mm |
Special Features | Service entrance rated Front or side operation Most compact size Internally mounted auxiliary contacts Flange mounting accessories Flexible mounting Adjustable shaft depth |
Standard | All UL switches meet the requirements of UL and CSA UL listed guide WHTY, File E191605 for UL 98 (ratings from 30 A to 1200 A) IEC 60947-3 |
Type | UL 98 Non Fusible |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 3.94 in x 2.76 in x 2.22 in |
Package Dimensions (L x W x H) | 100.076 mm x 70.104 mm x 56.388 mm |
Package Weight (Imperial) | 0.880 lb |
Package Weight (Metric) | 0.399 kg |
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The NNC75X75WH2 Halogen-Free Wide Slot Wiring Duct is used to route, protect, and manage wires near sensitive electronic equipment and in environments where heat resistance or public safety is a concern. UL 94 flame class of V-0 with a UL recognized continuous-use temperature up to 95 C (203 F). Halogen-Free, Polyphenylene Oxide (PPO). Mounting holes provided. 2.85" x 2.97" (72.4 mm x 75.4 mm) and 6.6' (2 m) long. Cover included. Color White. 5 pieces per package.
Frequently Asked Questions
What is the voltage rating for the Mersen M30U3 switch?
The Mersen M30U3 switch has a voltage rating of 600 VAC.
What is the current rating of the M30U3 non-fusible switch?
The Mersen M30U3 non-fusible switch has a current rating of 30 A.
How many poles does the Mersen M30U3 switch have?
The Mersen M30U3 switch is a 3-pole configuration.
What standards does the Mersen M30U3 switch comply with?
The Mersen M30U3 switch is designed to UL 98 standards.
Is the Mersen M30U3 switch suitable for motor disconnect applications?
Yes, the Mersen M30U3 switch is designed for motor disconnect applications.
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.