Mersen B1062716 - Fuse Holder IEC+UL/CSA Modulostar® Size 10x38 800VAC UL 1000VDC UL 3-Pole With Visual Indicator IP20 DIN Rail mounting
Mersen

B1062716

Alternate Item Number: CUS103I

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Minimum Qty: 4

Multiplier: 4

*Contact for lower quantities*

Overview

Mersen’s Modulostar CUS10 fuse holder (SKU: B1062716) is a 3-pole, finger-safe fuse holder designed for 10x38mm midget fuses, compliant with IEC and UL/CSA standards. Rated for 800VAC and 1000VDC, this compact fuse holder features IP20 protection, ensuring safe operation in industrial environments. The modular design allows for easy field assembly of multi-pole units using pin-tie assembly kits, with options for 1, 2, 3, or 4 poles, including neutral conductor variants. Constructed from durable thermoplastic or thermoset materials, the CUS10 series meets UL94V2 flame retardancy and glow wire flammability index requirements up to 960°C. The fuse holder includes a visual blown fuse indicator for immediate fault detection, enhancing system reliability. Terminal screws are Pozidriv #2 with a recommended torque of 13 Lbs-in (1.5 N-m), supporting wire ranges from #10 to #16 AWG (1-4 mm²). Designed for DIN rail mounting, the CUS10 is ideal for use with Mersen’s 10x38mm fuses, providing reliable overcurrent protection in low-voltage distribution systems. Multi-pole units can be interconnected using bus bars (USFMBB2, USFMBB3, etc.) for streamlined installations. The series supports microswitch auxiliary contacts for remote indication, further expanding its application versatility.
  • 3-pole design for 10x38mm midget fuses with IP20 protection
  • Rated 800VAC / 1000VDC, compliant with IEC and UL/CSA standards
  • Finger-safe operation with visual blown fuse indicator
  • Modular design supports field assembly of multi-pole units
  • DIN rail mounting with flame-retardant thermoplastic/thermoset construction

Specifications

AC Voltage Rating
800 V
Amperage Rating
32 A
Application
All circuits up to 690V for protection of motors, transformers, low voltage distribution, control circuits, drive protection Non-load operation
Brand Name
Mersen
DC Voltage Rating
1000 V
Maximum Operating Temperature
70 C
Minimum Operating Temperature
-40 C
Mounting
DIN rail acc. EN 60715
Number of poles
3
Operating Temperature, Maximum
158 F
Operating Temperature, Minimum
-40 F
Size
2.41 x 2.07 x 3.12;61.1 x 52.5 x 79.3 in;mm
Special Features
Modular design Compact design for space saving DIN rail mounting Degree of protection: IP20 Finger safe Easy access to the fuse Lockable without accessory Sealable in closed & open position Optional visual blown fuse indicator Multi-pole assembly kit available Plastic material UL94V2 mini Plastic material R22HL2 for railway application Flame retardant materials with glow wire flammability index to 960°C Schock and vibration tested for marine and railway applications
Standard
UL Recognized Component, UL4248, guide IZLT2 CSA Component acceptance C22.2 IEC 60269-2 and IEC 60947-3 RoHS, Reach compliant Marine certificates
Sub Brand
Modulostar®
Type
IEC+UL/CSA Fuse Holders
Package Dimensions (L x W x H)
2.41 in x 2.07 in x 3.12 in
Package Dimensions (L x W x H)
61.1 mm x 52.5 mm x 79.3 mm
Package Weight (Imperial)
0.309 lb
Package Weight (Metric)
0.140 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.