15RBT4-400E - Eaton RBT4 Medium Voltage Expulsion Fuse 14.4kV 400A Class E

15RBT4-400E

15RBT4-400E is an Eaton medium voltage expulsion fuse refill unit designed for power distribution applications requiring reliable time-lag protection at 14.4 kV nominal voltage. This single barrel Type RBT4 fuse delivers consistent performance in industrial and utility settings where transient surge tolerance and coordinated fault clearing are essential. The fuse features a glass epoxy construction that provides durability and consistent electrical characteristics across repeated operations. With a 400 ampere rating and Class E time-lag characteristics, the 15RBT4-400E is engineered to handle inrush currents while maintaining selective coordination with downstream protective devices. The maximum design voltage is 16 kV, providing margin for system overvoltages. This fuse achieves an AIC (Ampere Interrupting Capacity) rating of 29.4 kA at 14.4 kV, ensuring safe interruption of fault currents within its rated parameters.

• Amperage Rating: 400E
• Nominal Voltage: 14.4 kV
• Maximum Voltage: 16 kV
• Fuse Class: E (Time Lag)
• Type: RBT4 Single Barrel Expulsion Fuse
• Material: Glass Epoxy
• AIC Rating: 29.4 kA at 14.4 kV
• Manufacturer: Eaton Bussmann Series
• Application: Medium Voltage Power Distribution

At Essential Parts, we offer fast shipping, lowest price, and expert support to help you get the right product every time.

Specifications

• Part Number: 15RBT4-400E
• Manufacturer : Eaton
• Brand : Eaton
• Category : Fuse
• Item Subcategory : Medium Voltage Fuse
• Section : Fuse Refills
• Type : RBT4
• Voltage : 14400
• Amperage : 400
• AIC rating : [email protected]
• Class Rating : E
• Barrels : 1
• Velocity : Slow

Product Data

• UPC : 786670003526
• GTIN : 00786670003526
• Country of Origin : Dominican Republic
• Dimensions : 12.5 in x 2.5 in x 2.5 in (Length/Depth x Height x Width)
• Weight : 2
• Certification : IEEE Std. C37.41