Schneider DF143C TeSys DF Fuse Carrier 3P 22x58mm

The Schneider Electric DF143C is a TeSys DF 3-pole fuse carrier rated at 50 A and up to 690 V AC/DC, designed for use with 14 x 51 mm cylindrical fuses of types aM and gG. It delivers reliable fused isolation in industrial control and distribution panels, with a short-circuit withstand current of up to 120 kA at 400 V per IEC 60947-3. Supplied as a set of 2 units.

Technical specifications:

• Commercial reference: DF143C
• Manufacturer: Schneider Electric
• Series / range: TeSys DF
• Product type: Fuse carrier
• Short device name: DF14
• Number of poles: 3P
• Fuse size: 14 x 51 mm
• Fuse type: aM, gG
• Rated operating current [Ie]: 50 A
• Rated voltage [Ue]: 690 V AC / 690 V DC
• Rated insulation voltage [Ui]: 690 V AC
• Rated impulse withstand voltage [Uimp]: 8 kV
• Rated peak short-circuit current [Ipk]: 15 kA with tube connections per IEC 60269-1
• Short-circuit withstand current: 120 kA at 400 V / 120 kA at 500 V / 80 kA at 690 V per IEC 60947-3
• Control: Handle
• Mounting: 35 mm symmetrical DIN rail, vertical (tolerance +/- 23°)
• Connection terminals: Screw terminals, 1 cable 2.5-25 mm² or 2 cables 2.5-10 mm² (rigid or flexible)
• Tightening torque: 3.5 N.m
• Dimensions (WxHxD): 79 x 110.8 x 76.5 mm
• Weight: 0.420 kg
• IP protection rating: IP20 per IEC 60529
• Operating temperature: -20...60 °C (derating above 20°C)
• Storage temperature: -40...80 °C
• Fire resistance: 960 °C per IEC 60695-2-1
• Protective treatment: TH
• Certifications: IEC, UL recognized, CSA, EAC
• Supplied as: Set of 2

Features and benefits:

• Handle-operated 3-pole design enables safe manual isolation of fused circuits
• Accepts both aM (motor protection) and gG (general purpose) fuse types for application flexibility
• High short-circuit withstand rating of 120 kA at 400 V ensures suitability for demanding industrial networks
• Compatible with DF3EA and DF3EN striker pins and DF14AM auxiliary contact block for expanded functionality
• DIN rail mounting with vertical installation tolerance of +/- 23° simplifies panel integration

Applications:

• Motor circuit fused isolation in industrial control panels
• Distribution boards requiring a dedicated fused disconnector per outgoing circuit
• Machine tool and automation enclosures with high short-circuit fault levels
• Motor feeders protected by aM fuses in manufacturing environments
• Industrial switchgear assemblies compliant with IEC 60947-3

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

Also known as: Schneider DF143C, Schneider Electric DF143C, TeSys fuse carrier 3P 50A, cylindrical fuse disconnector 14x51.