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Schneider Electric 50A Rail Mount Fuse Holder for 14 mm x 51 mm, 3-Pole, 690V ac DF143NC
Specifications
| Country of Origin | Tunisia |
|---|---|
| Voltage | 690V ac |
| Range | TeSys DF |
| Brand | Schneider Electric |
| Model | DF143NC |
| Current Rating | 50A |
| Series | TeSyS DF, LS1/GK1 |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -20°C |
| Terminal type | Screw Clamp |
| Number of Poles | 3 |
| Standards/Approvals | IEC 60947-3, CSA, RoHS, UL512 |
| Rail Type | DIN 35 mm |
| Compatible Fuse Size | 14 mm x 51 mm |
Key Features
- Suitable for mounting on 35mm DIN rails in industrial control and power distribution panels.
- Equipped with an indicator to show fuse status clearly.
- Screw clamp terminals accommodate conductors up to 25mm² for solid connections.
- Withstands impulse voltage up to 8 kV and short-circuit currents up to 120 kA at 400V.
- Operates reliably within an ambient temperature range of −20°C to +60°C.
- Compatible with aM or gG 14x51 mm fuse cartridges used in switchgear.
- Designed for vertical mounting with ±23° tolerance on DIN rails.
- Conforms to international standards IEC 60947-3, UL 512 and CSA for electrical safety.
Product Description
Schneider Electric DF143NC is a 50A rail mount fuse holder designed for use with 14 mm x 51 mm tubular fuses, suitable for three-pole applications at voltages up to 690V AC. It mounts securely on a standard 35mm DIN rail, providing a compact and reliable solution for industrial and commercial electrical distribution systems.
This fuse holder features a clear fuse status indicator for quick visual inspection, ensuring safe and straightforward servicing. The robust screw clamp terminals support conductors up to 25 mm², delivering secure and durable electrical connections.
The fuse holder withstands high impulse voltages up to 8 kV and can safely manage short-circuit currents up to 120 kA at 400V, offering reliable protection in demanding electrical environments. It is rated for operation in ambient temperatures ranging from -20°C to 60°C, applying derating above 20°C to maintain optimal performance.
It is ideal for use in motor control panels, distribution boards in manufacturing plants, and automation rack power-supply isolation, and supports retrofitting in existing 35mm DIN rail installations. The device accepts both rigid and flexible single conductors, easing wiring tasks and enhancing installation flexibility.
The DF143NC rail mount fuse holder adheres to key international safety standards IEC 60947-3, UL 512, and CSA 22-2 No. 39, ensuring compliance and dependable operation in industrial and commercial electrical systems.
Mounts on 35mm DIN rail for industrial and commercial electrical panels. Rated for 50A current and 690V AC voltage operation. Includes visual fuse status indicator for maintenance efficiency. Screw clamp terminals accommodate conductors up to 25 mm².
Impulse voltage withstand capacity of 8 kV enhances transient protection. Short-circuit withstand capacity of 120 kA at 400V ensures fault resilience. Operating temperature range from −20°C to +60°C. Compatibility with aM and gG fuse cartridges for broad application.
Designed for vertical mounting with ±23° orientation tolerance. Conforms to IEC 60947-3, UL, and CSA certification standards.
Choose Schneider Electric Fuse Holders for reliable electrical protection solutions in industrial, manufacturing, electrical distribution, automation, and commercial power systems. Explore the full range of TeSys DF series components on EnvMart.
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Frequently Asked Questions
The maximum voltage rating for this fuse holder is 690V AC.
The current rating of the DF143NC model is 50A.
This fuse holder features screw clamp terminals that accommodate conductors up to 25 mm².
It operates reliably within an ambient temperature range of -20°C to +60°C.
The fuse holder is equipped with a clear fuse status indicator that allows for quick visual inspection of the fuse status.
It is compatible with aM or gG 14 mm x 51 mm fuse cartridges.
The fuse holder can withstand impulse voltages up to 8 kV.
It can safely manage short-circuit currents up to 120 kA at 400V.
It conforms to international standards IEC 60947-3, UL 512, and CSA.
This model is designed for vertical mounting on 35 mm DIN rails with a tolerance of ±23°.
It belongs to the TeSys DF series.
The country of origin for this fuse holder is Tunisia.
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