--- title: Littelfuse - Rockwell Encompass Partner description: Find Littelfuse Rockwell Encompass products here --- ![WebsiteLogoWhite.jpg](https://info.littelfuse.com/hs-fs/hubfs/Corporate/Logo/WebsiteLogoWhite.jpg?width=191&height=62&name=WebsiteLogoWhite.jpg "WebsiteLogoWhite.jpg") Safeguarding People & Equipment Littelfuse has moved beyond fuses into protection relays and other components to offer a unique safety package to its customers. With Littelfuse, safety managers and plant engineers can protect their employees, equipment and productivity from electrical hazards. ![](https://info.littelfuse.com/hubfs/Electrical/Industrial/Landing_Pages/Images/ibu-Arc-Flash-rockwell-lp.png) **Fastest Arc-Flash Detection on the Market** ■ Detects a developing arc flash in less than 1ms ■ Sends a trip signal to interrupt power before ■ damage occurs ■ Lowers Hazard Risk Category (HRC) of ■ the equipment [![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184&width=14&name=PDF-Icon-16x16.jpg) PGR-8800 Datasheet](http://www.littelfuse.com/~/media/protection-relays/datasheets/arc-flash-detection/littelfuse_protectionrelays_pgr_8800_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu_play_button.jpg) PGR-8800 Video](http://link.brightcove.com/services/player/bcpid1799411700001?bckey=AQ~~,AAABovPF6yE~,q30jSNNVaSZSUEDE_5RyzzPOOhkODIWF&bctid=2010989356001&width=600&height=340) [![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184&width=14&name=PDF-Icon-16x16.jpg) AF0500 Datasheet](http://www.littelfuse.com/~/media/protection-relays/datasheets/arc-flash-detection/littelfuse_protectionrelays_af0500_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu_play_button.jpg) AF0500 Video](http://link.brightcove.com/services/player/bcpid1799411700001?bckey=AQ~~,AAABovPF6yE~,q30jSNNVaSZSUEDE_5RyzzPOOhkODIWF&bctid=4215062967001&width=600&height=340) [![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184&width=14&name=PDF-Icon-16x16.jpg) AF0100 Datasheet](http://www.littelfuse.com/~/media/protection-relays/datasheets/arc-flash-detection/littelfuse_protectionrelays_af0100_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu_play_button.jpg) AF0100 Video](http://players.brightcove.net/1799386164001/default_default/index.html?videoId=5358962947001) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-ISB-rockwell-lp.jpg) **First UL Listed Industrial GFCI for Shock Protection** ■ Provides shock protection at 208 V, 240 V, ■ 480 V and 600 V ■ Safest product on the market, meets stringent ■ UL 943C requirements ■ Monitors ground-wire continuity and other ■ potentially dangerous conditions [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](http://www.littelfuse.com/~/media/files/littelfuse/technical%20resources/documents/data%20sheets/littelfuse_industrialshockblock_sb6000_datasheet.pdf) **To be contacted with more information, please fill out the form below.** ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-MV-fuses-rockwell-lp.jpg) **Medium Voltage Protection for Motors and Transformers** ■ Fast delivery available ■ R-Rated, E-Rated and potential transformer fuses [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/medium-voltage-fuses/littelfuse_fuse_medium_voltage_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-indicating-fuses-rockwell-lp.jpg?t=1447358716184) **Broad Base of Fuses for Diverse Requirements** ■ Indicating fuses takes the guesswork out of■ ■ replacement and increases up-time ■ Tools to aid fuse cross-reference and selection ■ for improved safety [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184) JTD\_ID Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/industrial-and-ul-fuses/littelfuse_fuse_jtd_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184) FLSR\_ID Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/industrial-and-ul-fuses/littelfuse_fuse_flnr_flsr_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184) FLNR\_ID Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/industrial-and-ul-fuses/littelfuse_fuse_flnr_flsr_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184) LLSRK\_ID Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/industrial-and-ul-fuses/littelfuse_fuse_llnrk_llsrk_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-Midget-fuses-rockwell-lp.jpg) **Gain Space and Power with Midget 10x38mm Fuses** ■ Provides supplemental overcurrent protection ■ Available in time-delay, fast-acting, board mount ■ or solar versions ■ Wide range of products for varied applications [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](http://www.littelfuse.com/products/fuses/cartridge-fuses/midget-10x38mm-fuses.aspx) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-el3100-rockwell-lp.jpg) **Meet NEC® Code Without Bringing Voltage to the Door** ■ Indicates ground faults and the presence of ■ voltage on both grounded and ungrounded systems ■ Meets NEC® Article 250.21 and CEC® Part 1, ■ Section 10-106 (2) requirements for ungrounded ■ systems [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](http://www.littelfuse.com/~/media/files/littelfuse/technical%20resources/documents/data%20sheets/littelfuse_protectionrelays_el3100_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-CC-fuses-rockwell-lp.jpg) **Space-Saving Protection for Motors and Branch Circuits** ■ Extremely current-limiting design for ■ safer applications ■ Smallest fuse with 300 kA interrupting rating ■ Current up to 60A [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/industrial-and-ul-fuses/littelfuse_fuse_ccmr_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Industrial/Landing_Pages/Images/ibu-POWR-Speed-rockwell-lp.png) **Protect Critical Power Electronics** ■ Arc-barrier technology specially designed to improve ■ semiconductor lifecycle ■ Extremely current limiting to reduce peak let-through ■ current ■ Low watt loss values save energy wasted during ■ operation [![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg?t=1447358716184&width=14&name=PDF-Icon-16x16.jpg) PSR Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/semiconductor-fuses/littelfuse_psr_series_high_speed_square_body_fuses_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu_play_button.jpg) POWR-*Speed*® Video](http://players.brightcove.net/1799386164001/SyQ7u56E_default/index.html?videoId=4814378601001) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) L50QS Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/semiconductor-fuses/l50qs_high_speed_fuse_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) L70QS Datasheet](http://www.littelfuse.com/~/media/electrical/datasheets/fuses/semiconductor-fuses/l70qs_high_speed_fuse_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-PC102-rockwell-lp.jpg) **Dual Protection Detects Seal Failures on Submersible Pumps** ■ **PC-102-DL**: Dual Seal-leak detector **■ PC-102-LT:** Dual Seal-leak and over-temperature ■ detector ■ Compact design with finger-safe terminals ■ Two Form C isolated contacts with LED ■ status indicators [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/pump-controls/littelfuse_protectionrelays_pc102_datasheet.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-PC-XXX-LLC-CZ-rockwell-lp.jpg?width=292&height=240&name=rcbu-PC-XXX-LLC-CZ-rockwell-lp.jpg) **Controls Levels in Conductive Liquid Pumping Operations** ■ Liquid level control with 2-probe inputs and ■ SPDT output allows use in both conductive ■ and non-conductive tanks ■ Adjustable debounce time delay prevents ■ nuisance tripping due to waves or splashing in tank ■ Invertible relay logic allows use in pump-up ■ and pump-down applications [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/pump-controls/littelfuse_protectionrelays_pc-xxx-llc-cz_pc-xxx-llc-gm_datasheet.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/RW-460-LP-product-template.jpg?width=292&height=240&name=RW-460-LP-product-template.jpg)**Detects Presence of Conductive Liquids** ■ Adjustable debounce time delay prevents ■ nuisance tripping due to waves or splashing in tank ■ Invertible relay logic allows use in pump-up ■ and pump-down applications ■ DIN rail or surface mount [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/pump-controls/littelfuse_protectionrelays_460_15_100_lls_datasheet.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-NGR-rockwell-lp.jpg?width=292&height=240&name=rcbu-NGR-rockwell-lp.jpg)**Increase Uptime and Reduce Arc-Flash Damage** ■ Eliminates arc flash hazard associated with ■ ground faults (<5 A) ■ Continuously monitors neutral-to-ground ■ path for continuity [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) NGR Datasheet](http://www.littelfuse.com/~/media/files/littelfuse/technical%20resources/documents/data%20sheets/littelfuse_protectionrelays_ngr_datasheet.pdf) [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) SE-330 Datasheet](http://www.littelfuse.com/~/media/files/littelfuse/technical%20resources/documents/data%20sheets/littelfuse_protectionrelays_se_330_datasheet-new-rev.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-460-15-rockwell-lp.jpg?width=292&height=240&name=rcbu-460-15-rockwell-lp.jpg)**Detects Seal Failures on Submersible Pumps** ■ Micro-controller based relay monitors the shaft ■ seal of submersible pump motor ■ Adjustable sensitivity setpoint for the ■ probe resistor ■ DIN rail or surface mount [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/pump-controls/littelfuse_protectionrelays_460_15_100_sld_datasheet.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-LSRX-rockwell-lp.jpg?width=292&height=240&name=rcbu-LSRX-rockwell-lp.jpg)**Self-Powered Load Sensor for use as AC Current Proof Relay** ■ No need for separate power control wiring; ■ draws power from wire being monitored ■ Quick-connect fast on terminals or depluggable ■ screw terminals ■ Monitors up to 200A loads [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/current-monitoring-relays-transducers/littelfuse_protectionrelays_lsrx_lsrx_c_datasheet.pdf) ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/rcbu-LSR-0-rockwell-lp.jpg?width=292&height=240&name=rcbu-LSR-0-rockwell-lp.jpg)**Self-Powered Load Sensor for use as Proof Relay** ■ No need for separate power control wiring; ■ draws power from wire being monitored ■ Verifies current is flowing as intended ■ Monitors up to 135A loads [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/current-monitoring-relays-transducers/littelfuse_protectionrelays_lsr_0_datasheet.pdf) ![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Rockwell_LP_Images/RW-201-product-template.jpg) **Detects Seal Failures on Submersible Pumps** ■ Micro-controller based relay monitors the ■ shaft seal of submersible pump motor ■ Adjustable sensitivity setpoint for the ■ probe resistor ■ Compact plug-in design; DIN rail or ■ 8-pin socket mount [![](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/PDF-Icon-16x16.jpg) Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/pump-controls/littelfuse_protectionrelays_201_100_sld_datasheet.pdf) [Data Privacy & Communications](https://www.littelfuse.com/data-privacy-and-communications) | [Website Terms of Use](https://www.littelfuse.com/legal/website-terms-of-use) | [Product Disclaimer](https://www.littelfuse.com/legal/product-disclaimer) Littelfuse, Inc. 6133 North River Road, Suite 500, Rosemont, IL 60018 USA, 773-628-1000 Copyright © 2026 Littelfuse, Inc.