Complementary
[In] rated current	50 A 690 V
fuse curve	AM
Net weight	0.045 kg
Contractual warranty
Warranty (in months)	18
Logistical informations
Country of origin	TN
Main
Range of product	TeSys fuse-disconnector
Product or component type	Cartridge fuse
Device short name	DF2
[Ue] rated operational voltage	690 V AC
Fuse size	22 x 58 mm
Fuse type	NFC
Quantity per set	Set of 10
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	2.500 cm
Package 1 Width	11.300 cm
Package 1 Length	12.000 cm
Package 1 Weight	49.000 g
Unit Type of Package 2	BB1
Number of Units in Package 2	10
Package 2 Height	2.500 cm
Package 2 Width	11.300 cm
Package 2 Length	12.000 cm
Package 2 Weight	534.000 g
Unit Type of Package 3	S02
Number of Units in Package 3	120
Package 3 Height	15.000 cm
Package 3 Width	30.000 cm
Package 3 Length	40.000 cm
Package 3 Weight	6.750 kg

The article DF2FA50 from Schneider Electric is a fuse of the TeSys series, specifically designed for fuse-disconnector devices of the TeSys GS type. It is a NFC fuse insert with a cylindrical shape and dimensions of 22 mm x 58 mm, classified as an aM fuse. This fuse protects exclusively against magnetic overcurrents, making it particularly suitable for motor protection. The rated current is 50 A, and the maximum operational rated voltage is 690 V AC. The fuse does not feature any indication, such as a striker pin, to visually signal a failure. The delivery is provided as a set of 10 pieces.

Applications
The fuse DF2FA50 is intended for use in industrial installations, particularly in control panels where motor protection is required. It is used in TeSys GS series disconnector switches to ensure protection of electrical components in case of short-circuit currents or other magnetic overloads. Its use in systems with high operating voltages up to 690 V AC makes it suitable for medium to high power requirements.

Functions and Equipment in Detail
The fuse is designed as an aM fuse, meaning it primarily protects against magnetic overcurrents, such as short circuits. It is not designed for protection against thermal overloads, as it lacks a thermal tripping function. The cylindrical shape with dimensions 22 mm x 58 mm corresponds to the NFC type, a standard format for fuse inserts in industrial switching devices. The fuse is delivered in a set of 10 units, which is practical for replacement needs in industrial installations.

Technology Explained Simply
The designation aM stands for automatically magnetic and describes the tripping characteristic of the fuse. In the event of a sudden increase in current, such as during a short circuit, the fuse element melts quickly to interrupt the circuit. The fuse is not designed for protection against slow overloads, as it does not exhibit any thermal response. The operational rated voltage of 690 V AC means the fuse is designed for alternating voltages up to this value. The cylindrical shape with dimensions 22 mm x 58 mm allows for easy installation in standardized fuse holders.

Compatibility and Accessories
The fuse DF2FA50 is specifically developed for use in TeSys GS disconnector switches. It is compatible with the fuse holders of this series and can be directly inserted into the designated holders. Use in other switching devices is not intended, as the dimensions and electrical ratings are specifically matched to the TeSys GS series.

Mounting and Installation
Mounting is done by simply inserting the fuse into the designated holders of the disconnector switch. No additional mounting equipment or tools are required. The fuse is designed to fit securely in the holder and ensure a reliable electrical contact. Installation typically occurs during maintenance or when replacing a blown fuse.

Advantages in Operation
The fuse DF2FA50 provides reliable protection against short circuits in motors and other electrical installations. The packaging in sets of 10 pieces simplifies replacement needs and reduces inventory costs. Use in TeSys GS switches ensures high compatibility and reliability in industrial applications. The simple handling and clear marking of technical data facilitate selection and replacement.

The warranty is 18 months, underscoring the reliability of the product. The fuse is designed for use in industrial environments where high electrical loads and secure power supply are required.