Siemens 5SB221 DIAZED Fuse Link, 500V, 4A, gG Class, Size DII, E27 Base
Siemens 5SB221 DIAZED Fuse Link, 500V, 4A, gG Class, Size DII, E27 Base
Siemens 5SB221 DIAZED Fuse Link, 500V, 4A, gG Class, Size DII, E27 Base
Siemens 5SB221 DIAZED Fuse Link, 500V, 4A, gG Class, Size DII, E27 Base

SIEMENS

Siemens 5SB221 DIAZED Fuse Link, 500V, 4A, gG Class, Size DII, E27 Base Original Brand New

Model / SKU5SB221

High-performance DIAZED fuse link designed for reliable cable and line protection. Featuring a 4A rated current and 500V rated voltage, this Size DII fuse utilizes an E27 screw base and belongs to the gG utilization category for general-purpose applications.

$3.19
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 5SB221 DIAZED system is one of the most widely used fuse systems in the world, renowned for its safety and easy handling. This specific fuse link is engineered to protect electrical installations against overloads and short circuits. Its robust design ensures it can withstand high thermal stress, making it an essential component for industrial and residential electrical panels.

Key Function

  • Overload Protection: Safely interrupts circuits when current exceeds 4A.

  • Short-Circuit Protection: Provides immediate disconnection during high-fault currents to prevent equipment damage.

  • Utilization Class gG: Optimized for general applications, specifically cable and line protection.

Benefit

  • Ease of Replacement: The E27 screw-in design allows for quick, tool-free replacement.

  • High Reliability: Manufactured by Siemens to meet rigorous international safety standards.

  • Clear Status Indication: Designed for use with indicator systems to quickly identify blown fuses.

  • Universal Compatibility: Fits all standard DII fuse bases with E27 threading.

Technical Specification

  • Brand: Siemens

  • Model / Part Number: 5SB221

  • Fuse Type: DIAZED Fuse Link

  • Voltage Rating: 500 V

  • Current Rating: 4 A

  • Utilization Category: gG

  • Size: DII

  • Base Type: E27

  • Application: Cable and line protection

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Datasheet in PDF

Specifications

SKU / Model5SB221
BrandSIEMENS
product brand nameSENTRON
product designationDIAZED fuse
design of the productFor cable and line protection
design of the fuse linkDIAZED fuse link
tripping characteristic classOther
size of fuse system / acc. to DIN EN 60269-1DII
operating class of the fuse linkgG
supply voltage / at DC500 V
protection class IPIP20, with connected conductors
switching capacity current / at DC / acc. to IEC 60947-2 / rated value8 kA
power loss [W]2 W
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole2 W
operational current-
● at 30 °C / rated value3.92 A
● at 40 °C / rated value3.8 A
● at 45 °C / rated value3.68 A
● at 50 °C / rated value3.6 A
● at 55 °C / rated value3.52 A
● at 60 °C / rated value3.44 A
● at AC / rated value4 A
color coding of the fuse linkbrown
product descriptionUsing screw adapter or adapter sleeves
mounting positionAny, preferably vertical
ambient temperature / during operation-
● minimum-5 °C
● maximum40 °C
environmental categoryUp to 45°C at 95 % rel. humidity
Test Certificatesother
Weight0.027 kg
Dimensions25.00 × 111.00 × 51.00 mm

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