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Fuse units

Name: Fuse units
Brand: NAVY ELECTRIC INDIA
Price: 4500.0 INR
Availability: InStock

Price 4500.0 INR/ Piece

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MOQ : 1 Piece

Fuse units Specification

IP Rating
IP42

Overheating Protection
Yes (fuse link burns on overload)

Feature
Padlock provision, easy operation handle, replaceable fuse links

Efficiency
100% (no losses except under fault conditions)

Shape
Rectangular box

Mounting Type
Surface/Wall Mounted

Operating Temperature
-10C to +55C

Surface Finish
Powder-coated

Power Factor
Not applicable (passive fuse protection)

Connector Type
Copper/Brass Internal Connectors

Humidity %
0-95% RH non-condensing

Insulation Material
Ceramic and Bakelite Base

Product Type
Fuse Unit (Switch Fuse Unit, SFU)

Application
Electrical protection, industrial and commercial distribution

Protection Level
Fuses for overload & short circuit protection

Frequency (MHz)
50/60 Hz

Rated Voltage
415V AC

Energy Consumption
Negligible (passive component)

Output Type
Line output post-fuse

Color
White or off-white enclosure, metallic finish

Dimension (L*W*H)
300mm x 250mm x 100mm (varies with model)

Weight
Approx. 2-4 kg (depends on size and poles)

Size
Standard sizes as per rated current

Phase
Three Phase

Input Voltage
415V AC

Material
Sheet metal enclosure with brass/copper contacts

No Of Poles
3 Poles

Connection Type
Screw type terminal

Compliance
IS/IEC standard compliance

Enclosure Thickness
1.2mm to 1.6mm sheet steel

Rated Current
Range from 32A up to 200A or as per requirement

Handle Type
Side mounted, insulated operation handle

Locking Arrangement
Provision for handle locking in OFF position

Earth Terminal
Provided inside enclosure

Accessories
Supplied with mounting hardware and circuit diagram

Fuse Type
Rewirable HRC or Cartridge Type

Internal Wiring
ISI Marked copper conductors

Knockout Entry
Provided for cable entry

Fuse units About

Fuse Units Product Description

Fuse Units are reliable electrical protection devices designed to protect electrical circuits and equipment against excessive current, short circuits, and overload conditions. When the current exceeds the safe limit, the fuse element melts and disconnects the circuit, helping prevent damage to wiring and connected equipment.

Manufactured with durable materials and designed for safe operation, fuse units are suitable for use in electrical distribution systems, control panels, industrial equipment, machinery, and commercial installations. They are available in different current and voltage ratings to meet specific application requirements.

Key Features:

Effective protection against overcurrent and short circuits
Reliable and fast circuit interruption
Durable and robust construction
Easy to install and replace
Available in different current ratings
Suitable for single-phase and other electrical applications
Helps protect electrical equipment and wiring
Low maintenance requirement
Suitable for industrial, commercial, and residential applications

Applications:
Fuse units are widely used in distribution boards, electrical panels, control panels, machinery, motor circuits, lighting systems, industrial equipment, and commercial electrical installations.

Fuse Units Product Description

Key Features:

Effective protection against overcurrent and short circuits
Reliable and fast circuit interruption
Durable and robust construction
Easy to install and replace
Available in different current ratings
Suitable for single-phase and other electrical applications
Helps protect electrical equipment and wiring
Low maintenance requirement
Suitable for industrial, commercial, and residential applications

Efficient Overload and Short Circuit Protection

The fuse units are designed to automatically interrupt circuits under overload or short circuit conditions, preventing damage to equipment and enhancing workplace safety. Fuses are easily replaceable, minimizing downtime and maintenance efforts.

Versatile Applications and Flexible Mounting

Suitable for a wide range of industrial and commercial distribution systems, these units can be wall or surface mounted as per installation requirements. Standard sizes and adaptable current ratings make them versatile solutions for both existing and new electrical setups.

Built to Endure Harsh Environments

With a powder-coated, IP42 enclosure and premium insulation materials like ceramic and Bakelite, these fuse units withstand demanding conditions-operating efficiently between -10C to +55C and tolerating up to 95% humidity without compromising performance.

FAQ's of Fuse units:

Q: How should the fuse unit be installed for optimal performance and safety?

A: Install the fuse unit on a wall or surface as indicated in the included mounting guide. Ensure proper securement, maintain clearance for cable entry through knockouts, and use the provided mounting hardware. The handle should remain accessible for operation and padlocking, especially in the OFF position.

Q: What benefits do rewirable HRC or cartridge fuses offer in these units?

A: Rewirable HRC or cartridge fuses provide convenient replacement after a fault, reducing equipment downtime. They ensure fast and reliable protection against overload or short circuits, complying with IS/IEC safety standards.

Q: When should the fuse link be replaced in this unit?

A: The fuse link should be replaced immediately after a fault event, such as overload or short circuit. Burnt fuse links act as a protective device, and restoring protection requires replacing them with a compatible link as specified in the circuit diagram.

Q: Where are these fuse units typically used?

A: These fuse units are widely used in industrial plants, commercial buildings, and distribution panels that require reliable three-phase protection at 415V AC. Their robust construction and standard compliance make them suitable for harsh environments.

Q: What is the process to change a blown fuse link in the unit?

A: Switch the operation handle to OFF and padlock it to ensure safety. Open the enclosure, identify the burnt fuse link, and replace it with a new one of the specified rating. Double-check terminals and wiring before re-energizing the circuit.

Q: How does the locking arrangement enhance safety during maintenance?

A: The handle can be locked in the OFF position, preventing unauthorized or accidental activation during maintenance or fuse replacement. This safety feature reduces the risk of shock or injury to maintenance personnel.

Q: What are the advantages of the powder-coated, IP42-rated enclosure?

A: The powder-coated finish resists corrosion, while the IP42 rating offers protection against solid objects and light water spray. This ensures longevity and reliable operation, even in humid or dusty environments.

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