Schneider Electric 50A Rail Mount Fuse Holder for 14 mm x 51 mm, 3P-Pole, 690V ac

RS Stock No.:: 482-871
Mfr. Part No.:: DF143C
Manufacturer:: Schneider Electric

Schneider Electric 50A Rail Mount Fuse Holder for 14 mm x 51 mm, 3P-Pole, 690V ac

Bulk discount available

Subtotal (1 unit)*

€69.61

(exc. VAT)

€85.62

(inc. VAT)

Limited stock

Plus 26 left, shipping from 25 May 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 4	€69.61
5 - 14	€67.39
15 - 19	€65.37
20 - 39	€63.43
40 +	€61.68

*price indicative

RS Stock No.:: 482-871
Mfr. Part No.:: DF143C
Manufacturer:: Schneider Electric

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Schneider Electric
	Product Type	Rail Mount Fuse Holder
	Range	TeSys DF
	Current Rating	50A
	Voltage	690V ac
	Number of Poles	3
	Rail Type	DIN 35 mm
	Minimum Operating Temperature	-20°C
	Indicator	Yes
	Compatible Fuse Size	14 mm x 51 mm
	Maximum Operating Temperature	+60°C
	Standards/Approvals	CSA, UL512, IEC 60947-3, RoHS
	Series	DF
	Terminal Type	Screw Clamp

	Select all
	Brand Schneider Electric
	Product Type Rail Mount Fuse Holder
	Range TeSys DF
	Current Rating 50A
	Voltage 690V ac
	Number of Poles 3
	Rail Type DIN 35 mm
	Minimum Operating Temperature -20°C
	Indicator Yes
	Compatible Fuse Size 14 mm x 51 mm
	Maximum Operating Temperature +60°C
	Standards/Approvals CSA, UL512, IEC 60947-3, RoHS
	Series DF
	Terminal Type Screw Clamp

COO (Country of Origin):: TN

Schneider Electric Series DF Rail Mount Fuse Holder, 50A Current, 690V Voltage - DF143C

This rail-mount fuse holder provides a compact, three-pole solution for protecting circuits on a DIN35mm rail in industrial control panels. It accepts 14x51mm fuse cartridges and is designed to fit into automation, electrical and mechanical installations where clear status indication and secure mounting are required.

Features & Benefits

• 50A rated current for handling moderate load circuits
• 690V insulation rating for high-voltage switching applications
• Screw-clamp terminals for robust conductor connections
• Indicator fitted to show fuse condition at a glance
• Withstands short-circuit stresses up to 120kA at 400V
• Operates to +60°C for high-temperature environments

Applications

• Suitable for motor starter panels using tubular fuse links
• Ideal for distribution blocks in manufacturing switchgear
• Used with fuse cartridge strikers for remote trip signalling
• Can be used for protection in DC and AC control systems
• Suitable for retrofitting on standard 35mm DIN rails

What cable sizes can be terminated into the unit?

Single-conductor rigid or flexible cables from 2.5mm2 up to 25mm2 can be fitted on one Terminal, and dual conductors up to 2x10mm2 are accepted on the second Terminal set.

How does the device behave under high impulse voltages?

The holder has an impulse-withstand capability of 8kV to tolerate transient overvoltages on industrial supplies.

What environmental limits apply during storage and use?

Storage range extends to -40 to 80°C while operational range is -20 to 60°C with derating above 20°C for continuous service.

How is the product secured mechanically in panels?

It clips onto a 35mm symmetrical DIN rail and is intended for vertical mounting with a ±23° tolerance.

Standards

IEC 60947-3, UL 512, CSA 22-2 n° 39