Current shunts are low resistance precision resistors used to measure AC or DC electrical currents by the voltage drop those currents create across the resistance. Sometimes called an ammeter shunt, it is a type of current sensor.
A wide range of precision shunts, designed for use with kilowatt-hour meters and other high-current applications where a high level of accuracy is required, is now available from Token Electronics.
The interchangeable shunts (FL) are used to multiply the measuring range of measuring instrument and designed for PCB and busbar mounting, are manufactured from electron beam welded copper and manganin, and have low temperature coefficients. Featuring low inductance values, shunts FL series can handle permanent currents of up to 10000A at voltage 75mV.
FLQ-54 type shunt is made of precision alloy board. It's copper terminals spot welded by silver alloy ensure extremely high electric capability. The construction provides a kind of excellent stability and high overloaded ability non-inductive resistor, applied widely as current limited, current balance or sampling sense in communication system, electric equipment and auto-controlling electrical circuit.
The FL Series is available in bulk packaging and is RoHS compliant and lead free. For non-standard technical requirements and special applications, contact us with your specific needs.
Download PDF Specification Low Resistance Precision Current Shunts.
FL-2 Type (75A-1000A) Shunt Dimensions (Unit: mm) |
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Voltage (mV) |
Rating Current (A) |
Dimensions (mm) | High Current Bolt (mm)-PC (Option) |
Shunt Voltage Bolt (mm)-PC (Option) |
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a±1 | c±1 | b±1 | c1±1 | c2±1 | H±1 | S±0.5 | d | d1 | d2 | ||||||
75 | 75~100 | 103 | 85 | 32 | 21.5 | 10 | M8x35-2 | M5x6-2 | |||||||
75 | 150~200 | 115 | 85 | 22 | 21.5 | 6 | M8x35-2 | ||||||||
75 | 250~300 | 125 | 100 | 26 | 21.5 | 6 | M10x35-2 | ||||||||
75 | 400 | 125 | 100 | 38 | 21.5 | 6 | M10x35-2 | ||||||||
75 | 500 | 125 | 100 | 45 | 21.5 | 6 | M10x35-2 | ||||||||
75 | 600 | 125 | 100 | 62 | 21.5 | 6 | M10x35-2 | ||||||||
75 | 750 | 125 | 100 | 76 | 50 | 21.5 | 6 | M10x35-4 | |||||||
75 | 1000 | 125 | 100 | 95 | 50 | 21.5 | 6 | M10x35-4 |
FL-2 Type (1500A-10000A) Shunt Dimensions (Unit: mm) |
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Voltage (mV) |
Rating Current (A) |
Dimensions (mm) | High Current Bolt (mm)-PC (Option) |
Shunt Voltage Bolt (mm)-PC (Option) |
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a±1 | c±1 | b±1 | c1±1 | c2±1 | H±1 | S±0.5 | d | d1 | d2 | ||||||
75 | 1500 | 190 | 160 | 95 | 50 | 100 | 13 | M12x60-4 | M5x6-2 | ||||||
75 | 2000 | 190 | 160 | 95 | 50 | 100 | 13 | M12x60-4 | |||||||
75 | 2500 | 190 | 160 | 110 | 50 | 100 | 13 | M12x60-4 | |||||||
75 | 3000 | 190 | 160 | 145 | 2-50 | 100 | 13 | M12x60-4 | |||||||
75 | 4000 | 190 | 160 | 195 | 2-50 | 55 | 100 | 13 | M16x80-8 | ||||||
75 | 5000 | 284 | 220 | 195 | 2-50 | 55 | 150 | 18 | M16x80-8 | ||||||
75 | 6000 | 284 | 220 | 210 | 2-50 | 80 | 150 | 18 | M16x80-8 | ||||||
75 | 7500 | 290 | 220 | 320 | 3-50 | 2-60 | 150 | 18 | M16x80-12 | ||||||
75 | 10000 | 290 | 220 | 400 | 3-50 | 2-90 | 150 | 18 | M16x80-12 |
FL-13 Type (5A-75A) Shunt Dimensions (Unit: mm) |
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Voltage (mV) |
Rating Current (A) |
Dimensions (mm) | High Current Bolt (mm)-PC (Option) |
Shunt Voltage Bolt (mm)-PC (Option) |
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a±1 | c±1 | b±1 | H1±0.5 | H2±1 | H3±1 | d | d1 | d2 | ||||
75 | 5~75 | 120 | 100 | 20 | 10 | 15 | 20 | M5x7-2 | M4x6-2 |
FL-13-A Type (100A-1000A) Shunt Dimensions (Unit: mm) |
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Voltage (mV) | Rating Current (A) | Dimensions (Unit: mm) | Mounting size (mm) | ||||
L | B | H | C | C1 | Bolt | ||
75mV | 100A | 130 | 14 | 30 | 85 | M8 | |
75mV | 200A | 130 | 24 | 30 | 85 | M10 | |
75mV | 300A | 130 | 30 | 30 | 100 | M10 | |
75mV | 400A | 130 | 42 | 30 | 100 | M10 | |
75mV | 500A | 130 | 52 | 30 | 100 | M10 | |
75mV | 600A | 130 | 60 | 30 | 100 | 50 | M10 |
75mV | 750A | 130 | 77 | 30 | 100 | 50 | M10 |
75mV | 1000A | 130 | 95 | 30 | 100 | M10 |
FLQ54 Type (30A-100A) Shunt Dimensions (Unit: mm) |
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Type | Dimensions (Unit: mm) | Style of terminal | |||
H max. | B | L | L1 | ||
FLQ54-A | 37 | 18 | 3 | 3 | 6 |
FLQ54-B | 60 | 30 | 5 | 5 | 6 |
FLQ54-C | 32 | 15 | 3 | 3 | 2 |
Type | Rated Current (A) |
Rated Voltage Drop (mV) |
Nominal Resistance (mΩ) |
Accuracy Class | Temperature Range (°C) |
Temperature Coefficient (ppm/°C) |
FLQ54-A | 30 | 50 | 1.6667 | 0.5 | -55 ~ +85 | ±25 |
FLQ54-A | 50 | 50 | 1.0000 | |||
FLQ54-A | 60 | 50 | 0.8333 | |||
FLQ54-B | 60 | 50 | 0.8333 | |||
FLQ54-B | 75 | 50 | 0.6667 | |||
FLQ54-B | 100 | 50 | 0.5000 | |||
FLQ54-C | 30 | 45 | 1.5000 | |||
FLQ54-C | 60 | 45 | 0.7500 |
Test Items | Specification |
Rated Voltage Drop | 50mV, 60mV, 75mV, 100mV. |
Accuracy Class | 0.5% for 5~4000 A; 1% for 5000~6000 A |
Over Rating Capacity | 120% of rated current for 2 hours. |
Ambient Conditions | Temperature: -40~+60°C; relative humidity:≤95% 35°C |
Giving Out Heat When Loaded | Not be more than 80°C at rated current of below 50A.; not be more than 120°C at rated current of 50A and over 50A. |
Capacity to Withstand Mechanical Force | It is capable of withstanding the transport bumping at acceleration of 70m/S2 and shock frequency of 80-120 times/min for 5 hours. |
FL-2 | - | 5A | 50mV | F | p | |||||||||||||||||||||||||||||||||||||
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