Rated Voltage (Un): 1000 VDC Rated Current (In): 100 ~ 400 A Breaking Capacity (I1): 50 kA Utilization Category: aR - SETsafe

Over Current Protection（64）
- Miniature Fuses（26）
  Miniature Fuses
  Miniature Fuses is an Over Current Protection device. Its resistance is very low. When the circuit works normally, it is equivalent to a wire, which can conduct the circuit continuously and stably. When the current fluctuates due to circuit instability or external interference, it should also be able to withstand a certain range of overload. Only when overload or short circuit happens, Miniature Fuses can blow fast to protect the circuit. SETsafe | SETfuse Miniature Fuses is widely used in all kinds of electrical equipment. It has a variety of mounting modes, compact structure, reliable and stable performance. Technical parameters of SETsafe | SETfuse Miniature Fuses: Its rated current ranges from 0.1 A to 40 A, rated voltage ranges from 125 VAC to 500 VAC, and from 24 VDC to 600 VDC, complies with RoHS and REACH, and is approved by cURus, VDE, PSE, CCC, CQC, KC, TUV.
- Low Voltage Fuses (LV Fuses)（38）

Active Protection（19）
Active Protection
Active Protection

Accessories（5）
Accessories
Accessories
- For Over Current Protection Products（5）
  For Over Current Protection Products
  For Over Current Protection Products

LV Fuses for ESS (Energy Storage System)
LFR38-xA10-y(-I) series×

LFR38-xA10-y(-I) series

Rated Voltage (Un): 1000 VDC

Rated Current (In): 100 ~ 400 A

Breaking Capacity (I1): 50 kA

Utilization Category: aR

Datasheet
Manufacturer
Features
Mounting Style
Termination Style
Applications
Design Standards & Agency Approvals
Customization
Quality Assurance
Brand
Tradename
Overview
About SETsafe | SETfuse

Datasheet

2024-2026 Year Version.

LV Fuses_LFR38-xA10-y(-I)(1000 VDC, 100 ~400 A)_SETsafe & SETfuse.pdf

Datasheet (PDF Document) Include: Specifications, Agency Approvals, Packaging, Structure Diagrams, Glossary, Part Numbering System, Installation, Usage, Replace, Storage and other information.

Manufacturer

Xiamen SET Electronics Co., Ltd.

Features

● Rated Voltage: 1000 VDC

● Breaking Capacity: 50 kA

● Fusing Characteristics: High Speed Fuse

● Utilization Category: aR

● Good Current Limiting Capability

● Body Size：75 x 38 x 41.5 mm，75 x 38 x 39mm

● Indicator Optional

● RoHS and REACH Compliant, Pb Free

Mounting Style

Bolt Tag, Flat Bolt

Termination Style

Bolt Down

Applications

● Energy Storage System (ESS)

● DC systems

● Variable-frequency Drive (VFD)

● Inverter

● Direct Current Charging Pile

Design Standards & Agency Approvals

ABSOLUTELY ASSURED USE WITH GLOBALIZATION CERTICATION

The following certificates (PDF Documents) are only used for browsing on the web to prove the product has been certified. If you need a full version certificate, Please contact: sales@SETfuse.com

TUV (Germany):

Standards: IEC 60269-4

File No.: B 107221 0015

TUV_LFR38-xA10-y(-I)_SETsafe & SETfuse.pdf

CCC (China):

Standards: GB/T 13539.4

File No.: 2026010308840275

CCC_LFR38-xA10-y(-I)_SETsafe & SETfuse.pdf

CE (EU):

Standards: IEC 60269-4

File No.: N8A 107221 0016

CE_LFR38-xA10-y(-I)_SETsafe & SETfuse.pdf

Customization

If you want to customize the product, please communicate with SETsafe ｜SETfuse.

Quality Assurance

High Quality, High Reliability.

Brand

SETsafe | SETfuse

Tradename

SET

Overview

A low-voltage fuse is an overcurrent protection device designed for low-voltage electrical systems (typically defined as less than 1000 VAC or 1500 VDC). Its primary function is to interrupt fault currents during an overload or short-circuit event by melting its internal element, thereby preventing equipment damage or fire hazards. They are widely applied in all electrical and electronic systems requiring overcurrent protection, such as industrial power distribution systems, household appliances, automotive electronics, and new energy applications.

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About SETsafe | SETfuse

SETsafe | SETfuse Designs, Manufactures and Markets Industry-leading Circuit Control and Safety Protection Components, Providing Comprehensive Circuit Safety Solutions.

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Brand Story: Learn more

Product Catalog Download: Learn more

Testing and Verification Laboratory - Product Raw-materials, Function, Performance, Reliability, Life Testing: Learn more

Management System and Certificate: Learn more