Eaton Bussmann REN-20 Time Lag Fuse - 10 kAIC Class H 250 V
Part Number: REN-20
Quick Summary
The Eaton REN-20 fuse is a time-lag protection device designed for industrial and commercial power circuits. It helps prevent nuisance trips during motor startups and surges by providing a controlled delay, improving overall equipment availability. RoHS compliant and built to standard specifications, the REN-20 delivers reliable protection under demanding conditions. With a 20 A rating and a high 10 kAIC interrupt rating, it safeguards wiring and components from short circuits while tolerating inrush events. The ferrule-end connections simplify installation for panel builders and field technicians, supporting faster commissioning. For procurement teams and engineers, this fuse offers predictability in lead times and consistent performance across critical power rails.
Product Information
Extended Description
REN-20 Eaton: Eaton Bussmann series REN fuse, time lag, non current-limiting, Industrial and commercial structures, 20 A, Class H, Non-indicating, Ferrule end x ferrule end, 10 kAIC, Standard, 10, 250 V
Product Name
Eaton Bussmann series REN fuse
Catalog Number
REN-20
UPC
051712100205
EAN
5027590098250
Product Length/Depth
0.56 in
Product Height
2 in
Product Width
0.56 in
Product Weight
0.41 lb
Warranty
Not Applicable
Compliances
Not Applicable RoHS Compliant
Amperage Rating
20 A
Interrupt rating
10 kAIC
Voltage rating
250 V
Packaging type
Standard
Class
Class H
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Super lag, time lag, non current-limiting
REN-20~SUPER LAG RENEWABLE FUSE 20/250
REN-20~SUPER LAG RENEWABLE FUSE 20/250
Bussmann series Fuseology
Eaton Specification Sheet - REN-20
Feature: Time lag operation, including the noted Super Lag, provides an intentional delay during overload events. Business Impact: Reduces nuisance trips on motor starts and inrush, cutting unplanned downtime and extending equipment life. Application: Motor starters, HVAC controls, and conveyors in industrial settings. Feature: 20 A amperage rating with a 10 kAIC interrupt rating at 250 V. Business Impact: Delivers robust protection for distribution panels and branch circuits in high fault-current environments. Application: Power distribution panels, machine controls, and renewable energy interfaces. Feature: Class H design combined with ferrule-end connections. Business Impact: Improves protection quality while enabling quick, reliable terminations in tight panel spaces. Application: Control panels, switchgear assemblies, and new-builds. Feature: Non-indicating fuse with standard packaging. Business Impact: Keeps panel interiors uncluttered and simplifies procurement and stocking. Application: Routine replacements in service centers and facility maintenance. Feature: RoHS compliant with standard packaging. Business Impact: Ensures regulatory compliance and streamlined supplier integration, reducing compliance risk. Application: Corporate sustainability programs and regulated manufacturing environments.
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FAQs
REN-20 uses ferrule-end connections designed for quick, reliable terminations in standard panels. Ensure the wiring matches ferrule specifications and that the 20 A rating aligns with the circuit’s load. Utilize proper torque on ferrules and verify clearance within the enclosure to avoid heat buildup and arcing.
Time-lag protection allows short, controlled delays during inrush or startup surges, reducing nuisance trips on motors and drives while still interrupting a short circuit quickly enough to protect conductors. This balance improves uptime in conveyors, fans, and HVAC equipment without compromising safety.
Yes. With a 20 A rating, 250 V operating range, and a 10 kAIC interrupt rating, REN-20 is well suited for distribution panels, inverters, and HVAC control circuits where inrush conditions are common and reliable fault protection is essential.
REN-20 is RoHS compliant, supporting environmental and regulatory requirements. While the data sheet emphasizes RoHS, it’s important to align usage with your regional standards and any applicable UL/CSA certifications in your facility’s jurisdiction.
By reducing nuisance trips and enabling faster, simpler installation with ferrule-end terminals, REN-20 lowers downtime and labor costs. Its robust 10 kAIC rating also reduces the risk of damage from fault currents, contributing to lower replacement and service expenses over the fuse’s life.