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MERSEN FUSE 63M80A69B1 BTC69V63M80
High-performance BS88 gM Type B1 fuse-link rated at 690VAC and 460VDC with central bolted tag connections for robust installation and reliable circuit protection.
£19.27
Why Choose the Mersen BTC69V63M80 Motor Circuit Fuse-Link?
The Mersen BTC69V63M80 is an industrial gM motor circuit fuse-link designed to provide dependable short-circuit protection for electric motors, motor starters and associated switchgear. Its motor-duty operating characteristic allows it to withstand normal motor starting currents while responding rapidly to high-level fault currents.
Designed for use in compatible BS-type bolted-tag fusegear, the BTC69V63M80 provides a secure electrical and mechanical connection within motor control centres, fuse-switch disconnectors and industrial control panels. Its current-limiting performance helps reduce the thermal and mechanical stress imposed on contactors, cables and other downstream equipment during a short circuit.
The 63M80 designation identifies a motor-rated fuse-link with an 80 A conventional current rating and a motor-circuit rating associated with 63 A applications. With a voltage rating of up to 690 V AC, it is suitable for demanding industrial motor installations. A correctly selected overload relay or motor protection device should be used alongside the fuse-link to provide protection against sustained overload conditions.
Key Advantages
- Purpose-designed gM fuse-link for motor circuits.
- 63M80 motor-duty rating.
- Suitable for systems operating at up to 690 V AC.
- Withstands normal motor starting and acceleration currents.
- Rapid current limitation helps reduce damage during short circuits.
- Bolted-tag construction provides a secure connection in compatible fusegear.
- Suitable for coordinated use with a motor overload relay.
Key Features
- Mersen industrial motor fuse-link.
- gM motor circuit operating characteristic.
- 63M80 rating designation.
- 690 V AC rated operation.
- High short-circuit interruption capability.
- Current-limiting fuse element.
- Central bolted-tag terminal arrangement.
- Non-resettable, replaceable protection device.
Reliable Protection for Industrial Motor Circuits
Electric motors can draw several times their normal full-load current while starting. The Mersen BTC69V63M80 is designed to tolerate this temporary inrush without unnecessary operation, while still interrupting severe short-circuit currents before they cause extensive damage to the motor circuit.
As a gM fuse-link, the BTC69V63M80 primarily provides short-circuit protection. Complete motor protection normally requires coordination with a thermal overload relay, electronic motor protection relay or another suitable overload device. Together, these components protect the motor, contactor, conductors and associated switching equipment against a broad range of electrical faults.
Typical Applications
- Industrial electric motors.
- Motor control centres.
- Direct-on-line motor starters.
- Star-delta starter assemblies.
- Pumps, fans and compressor systems.
- Conveyors and processing machinery.
- Industrial switchgear and control panels.
Technical Specifications
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| Fuse Class | gM | |
|---|---|---|
| Voltage | 690 V | |
| Item number | B1006619 | |
| Catalogue No | BTC69V63M80 | |
| Description | British Standard fuse-link IEC BS88 gM Type B1 690VAC 460VDC 63M80A BTC Central Bolted Tag | |
| EAN/UPC Code | 3605340536829 | |
| Rated voltage AC IEC | 690 V | |
| Rated voltage DC IEC | 460 V | |
| In M Ich | 63M80 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | gM | |
| Fuse Size | B1 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 48500 A²s | |
| Melting I2t | 8500 A²s | |
| AC Max I.R./Breaking Capacity | I1: 80 kA | |
| Max. Rated Breaking Capacity DC | 40 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Central Bolted Tag | |
| Product Diameter | 26.9 mm | |
| Product Length | 137 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 1.245 kg | |
| Sell Pack Width | 145 mm | |
| Sell Pack Length | 145 mm | |
| Sell Pack Height | 60 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.1245 kg | |
| Power Dissipation at Rated Current Value | 5.1 W | |
| HS Code | 85361050 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen BTC69V63M80 used for?
The BTC69V63M80 is used to provide short-circuit protection for industrial motors, motor starters, contactors and associated electrical equipment.
What does the 63M80 rating mean?
The 63M80 designation identifies a gM motor-duty fuse-link with an 80 A conventional fuse current, designed to coordinate with motor circuits associated with a 63 A rating.
What voltage is the BTC69V63M80 rated for?
The fuse-link is designed for compatible motor circuits operating at up to 690 V AC.
Does the BTC69V63M80 provide overload protection?
The fuse-link primarily provides short-circuit protection. A correctly selected overload relay or motor protection device should be installed to protect against sustained motor overloads.
Can the BTC69V63M80 be reset after operation?
No. It is a non-resettable fuse-link and must be replaced with a correctly specified equivalent after the fault has been identified and rectified.
Trusted Motor Circuit Protection
Mersen motor fuse-links are specified by electrical engineers, panel builders and maintenance professionals for dependable protection of industrial motors, starters and power distribution equipment.
