Mersen M30J12 UL 98 Fusible Switch 600VAC Class J 30A 3-Pole Configuration: 1-2
Alternate Item Number: M30J12
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- UL 98 listed 3-pole fusible disconnect switch rated for 600VAC and 30A
- Double-break contact mechanism isolates fuse clips during replacement
- Fuse doors interlocked to prevent opening when switch is ON
- Integrated power taps for energizing CPTs or surge devices without additional terminal blocks
- Short-Circuit Current Rating (SCCR) up to 200kA; compatible with Class J fuses
Specifications
AC Voltage Rating | 600 V |
Amperage Rating | 30 A |
Application | Main disconnects Short circuit protection Electrical isolation Overcurrent protection Safety switch |
Brand Name | Mersen |
Connection | Box |
Connection Type | Screw Terminal |
Current Rating | 30 A |
DC Voltage Rating | 250 V |
Maximum Operating Temperature | 40 °C |
Maximum Operating Temperature | 40 C |
Minimum Operating Temperature | -5 °C |
Minimum Operating Temperature | -5 C |
Mounting | Base Mounted |
Mounting Type | Panel Mount |
Mounting Type | Direct Screw Mount |
Number Of Poles | 3 |
Poles | 3 |
Series | UL 98 Fusible Switch |
Series | M30J |
Size | 4.45 x 4.18 x 4.11 in |
Size | 113.03 x 106.172 x 104.394 mm |
Special Features | Multiple Configurations Power taps Adjustable shaft depth Fuse monitoring Double break, isolating live and load side of fuse Interlocked fuse doors |
Standard | All UL Fusible Disconnect Switches meet UL & CSA requirements UL listed guide WHTY, File E191605 for UL 98 (ratings from 30A to 1200A) IEC 60947-3 |
Type | UL 98 Fusible |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 4.45 in x 4.18 in x 4.11 in |
Package Dimensions (L x W x H) | 113.03 mm x 106.172 mm x 104.394 mm |
Package Weight (Imperial) | 1.540 lb |
Package Weight (Metric) | 0.699 kg |
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Frequently Asked Questions
What is the maximum operating voltage for these fusible disconnect switches?
The maximum operating voltage for these switches is 600VAC and 250VDC.
What are the available ampacity ratings for Mersen's fusible disconnect switches?
Available ampacity ratings include 30, 60, 100, 200, 400, 600, 800, and 1200A.
What is the Short-Circuit Current Rating (SCCR) for these switches?
The SCCR is up to 200kA when using Class CC, J, or L fuses.
What standards do Mersen's fusible disconnect switches conform to?
These switches are listed to UL 98 and bear the CE mark conforming to IEC 60947-3.
Can the fuse doors be opened when the switch is in the 'ON' position?
No, the fuse doors cannot open when the switch is in the 'ON' position for safety.
What is the purpose of the 'Test' position on the switch?
The 'Test' position allows for the actuation of auxiliary contacts without main power.
What types of fuses are compatible with the 30A and 60A rated switches?
The 30A switches are compatible with J/CC fuses, and the 60A switches are compatible with J fuses.
What is the minimum recommended handle length for NEMA Type 1, 3R, 12 enclosures?
For NEMA Type 1, 3R, 12 enclosures, the minimum recommended handle length is 45 mm for 30-200A switches.
What is the wire tightening torque for 100A switches?
The wire tightening torque for 100A switches is 120 lb.in.
What is the electrical endurance for 30A and 60A switches?
The minimum electrical endurance for 30A and 60A switches is 6000 operating cycles.
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.