Schneider DF103 TeSys DF Fuse Carrier 3P 14x51mm

The Schneider Electric DF103 is a 3-pole TeSys DF fuse carrier rated at 32 A for 10 x 38 mm cylindrical fuses. It provides safe isolation and overcurrent protection in industrial switchboards, featuring a lockable operating handle and a 120 kA short-circuit withstand current at 400 V AC.

Technical specifications:

• Commercial reference: DF103
• Manufacturer: Schneider Electric
• EAN: 3389119407243
• Series / range: TeSys DF
• Product type: Fuse carrier (disconnector)
• Number of poles: 3P
• Rated operating current [Ie]: 32 A at 400 V AC
• Conventional free-air thermal current [Ith]: 32 A at below 20°C
• Rated voltage [Ue]: 690 V AC / 690 V DC
• Rated insulation voltage [Ui]: 690 V AC
• Rated impulse withstand voltage [Uimp]: 6 kV
• Overvoltage category: III
• Short-circuit withstand current: 120 kA at 400 V AC per IEC 60947-3
• Fuse size: 10 x 38 mm
• Fuse type: gG, aM
• Usage category: AC-20B / DC-20B per IEC 60947-3
• Power dissipation: 3 W maximum (with fuse)
• Mounting: 35 mm symmetrical DIN rail, vertical (tolerance +/- 23°)
• Connection: Screw terminals, 1 cable 1-16 mm² or 2 cables 1-6 mm² (rigid or flexible)
• Tightening torque: 2.2 N.m
• Dimensions (W x H x D): 52.5 x 79.5 x 61 mm
• Weight: 0.126 kg
• IP protection rating: IP20
• Pollution degree: 3
• Operating temperature: -40...70°C (with derating above 20°C)
• Storage temperature: -40...70°C
• Fire resistance: 960°C per IEC 60695-2-1
• Certifications: IEC, UL recognized, CSA, CCC, EAC, DNV-GL
• Quantity per set: 4

Features and benefits:

• Lockable operating handle prevents accidental re-energisation during maintenance
• Accepts both gG (general-purpose) and aM (motor-protection) fuse types for flexible circuit coordination
• Compatible with DF2CA and DF2CN disconnect inserts for modular assembly
• 120 kA short-circuit withstand rating supports use in high-fault-level industrial networks
• DNV-GL and EN 45545-2 certifications permit use in marine and rail applications

Applications:

• Industrial motor control centers requiring fused feeder isolation
• Machine tool and automation switchboards with 10 x 38 mm fuse coordination
• Distribution panels where lockable isolation is required for safe maintenance access
• Marine electrical installations covered by DNV-GL certification
• Power distribution systems up to 690 V AC in factories and process plants

Compliant with EN/IEC 60947-3, EN/IEC 60269-2, UL 4248-1, CSA C22.2 No 4248-1, and EN 45545-2: R22 HL2. Part of the Schneider Electric TeSys DF range.

Also known as: Schneider DF103, Schneider Electric DF103, TeSys fuse disconnector, 3-pole cylindrical fuse holder 32A.