LCT
Specifications
Description: BS 88 style stud-mount high speed semiconductor fuses.
Dimensions: See dimensions illustrations.
Ratings:
Volts: 240Vac/150Vdc
Amps: 6-20A
IR: 200kA RMS Sym.
Agency Information: CE, Designed and tested to: BS 88 Part 4, IEC 269 Part 4, UL Recognized. All fuses above have been tested at 318Vac. Consult Cooper Bussmann for
specific UL Recognition status.
Electrical Characteristics
Total Clearing I2t
![](/uploads/spec-pics/201301A/BS88-240V-Total-Clearing-I2t.jpg)
The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K, given as a function of applied working voltage, Eg, (rms).
Dimensions (mm)
![](/uploads/spec-pics/201301A/LCT-demention.jpg)
Arc Voltage
![](/uploads/spec-pics/201301A/BS88-240V-Arc-Voltage.jpg)
This curve gives the peak arc voltage, UL, which may appear across the fuse during its operation as a function of the applied working voltage, Eg, (rms) at a power factor
of 15%.
Power Losses
![](/uploads/spec-pics/201301A/BS88-240V-Power-Losses.jpg)
Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the power losses at load currents lower than the rated current. The correction factor, Kp, is given as a function of the RMS load current, Ib, in % of the rated current.
Catalog Numbers
Catalog Numbers | Type | Rated Current RMS-Amps | I2t(A2 Sec) | Watts Loss | ||
Pre-arc | Clearing | |||||
at 120V | at 240V | |||||
6LCT | LCT | 6 | 2 | 6 | 9 | 1 |
10LCT | 10 | 3.8 | 12 | 22 | 2.5 | |
12LCT | 12 | 7 | 22 | 32 | 2.5 | |
16LCT | 16 | 20 | 50 | 100 | 2.5 | |
20LCT | 20 | 25 | 80 | 160 | 4 |
• Watts loss provided at rated current.
Features and Benefits
• Excellent cycling capability
• Excellent DC performance
• Low arc voltage and low energy let-through (I2t)
Typical Applications
• DC common bus
• AC and DC drives
• Power converters/rectifiers
• Reduced voltage starters
Time-Current Curve
![](/uploads/spec-pics/201301A/LCT-Time-Current-Curve.jpg)
Peak Let-Through Curve
![](/uploads/spec-pics/201301A/BS88-240V-Peak-Let-Through-Curve.jpg)