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Littelfuse 3PH27P18MM - 3PH27P18MM is a compact-sized POWR Busbar system that provides safe distribution of electrical power to multiple dead front fuse holders and measures 481 mm in length, which can be cut down to an optimal size. See datasheet for more detailed specifications.

Littelfuse 3PH27P18MM 3PH27P18MM is a compact-sized POWR Busbar system that provides safe distribution of…

UPC: 079458820966


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Littelfuse 3PH27P18MM POWR Busbar System (SKU: 3PH27P18MM) is a UL 508 Listed, compact 3-phase power distribution solution designed for safe, efficient electrical panel assembly. This 481 mm long busbar system is engineered for touch-safe operation and can be cut to custom lengths, eliminating excess material and reducing installation waste. The 27-pole, 18 mm² copper busbar delivers reliable power distribution with a voltage rating of 600 V AC/DC and 1000 V DC (1-phase, 18 mm² center-fed). With a Short Circuit Current Rating (SCCR) of 10 kA (100 kA†), this system ensures robust fault protection in industrial environments. The 35 mm DIN-rail mountable design integrates seamlessly with Littelfuse LFPSM, LFPSC, LPSM, LPSC (600 V), and LPHV (1000 V) dead front fuse holders, streamlining panel wiring by replacing multiple wire terminations. Ideal for manufacturing, automation, data centers, telecommunications, and building management systems, the 3PH27P18MM optimizes space while maintaining compliance with RoHS 2 Directive 2011/65/EU and Directive (EU) 2015/863. Accessories such as endcaps (standard for 3-phase except 57-pole), power feed lugs, and protective covers are available separately to enhance functionality and safety.
  • UL 508 Listed 3-phase power distribution busbar system
  • 481 mm length, cuttable to custom sizes for minimal waste
  • 27-pole, 18 mm² copper busbar with 600 V AC/DC and 1000 V DC ratings
  • 80 A (end-fed) / 160 A (center-fed) current ratings for 18 mm²; 100 A / 200 A for 25 mm²
  • 35 mm DIN-rail mountable with touch-safe dead front fuse holder compatibility

Specifications

Connection Type
Busbar system for dead front fuse holders
Current Rating
80 A (end-fed), 160 A (center-fed) for 18 mm²; 100 A (end-fed), 200 A (center-fed) for 25 mm²
Material
Copper
Mounting Type
35mm DIN-rail mountable
Poles
3-Phase
Series
3PH27P
Size
481 mm (cuttable)
Voltage Rating
600 V AC/DC, 1000 V DC
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3PH15P18MM

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1PH4P25MM

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Frequently Asked Questions

What is the conductor material used in the busbar?

The conductor material used in the busbar is copper.

What is the pitch between poles on the busbar?

The pitch between poles on the busbar is 17.8 mm.

What is the voltage rating for the POWR Busbar system?

The voltage rating is 600 V ac/dc and 1000 V dc.

Is the POWR Busbar system UL Listed?

Yes, the POWR Busbar system is UL 508 Listed with File E328654 and also UL Listed with File E81895.

What are the current ratings for the 18 mm2 busbar?

For the 18 mm2 busbar, the end-fed current rating is 80 A and the center-fed rating is 160 A.

What environmental standards does the busbar comply with?

The busbar is RoHS compliant and lead (Pb) free, adhering to RoHS 2 Directive 2011/65/EU and Directive (EU) 2015/863.

How is the busbar mounted?

The busbar is designed for 35 mm DIN rail mounting, allowing for easy installation.

Can the busbar system be customized for different applications?

Yes, the POWR busbar series can be customized for various applications, offering multiple pole configurations and amperage ratings.

What fuse holders are compatible with the POWR Busbar system?

Compatible fuse holders include the LFPSC series, LPSC/LPSM series (600 V), and LPHV series (1000 V).

What is the torque specification for the power feed lugs?

The torque specification for the power feed lugs (BB17, BB18, BB19, BB20) is 50 lb-in.

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.