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TLV - Vitreous Enamel Power Resistors 12W to 1000W Fixed or Adjustable |
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SPECIFICATIONS
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| MATERIAL | ||
| Coating: Flameproof vitreous enamel - all welded construction | ||
| Core: Steatite ceramic | ||
| Derating: Linearly from 100% @ +25°C to 0% at +350°C. | ||
| ELECTRICAL | ||
| Tolerance: ±5% 1 ohm and over. ±10% under 1 ohm | ||
| Power rating: Based on 25°C free air rating | ||
| Overload: 10 times rated wattage for 5 seconds | ||
| Temperature coefficient: 1 to 20 ohms: ±400 ppm/°C. Above 20 ohms: ±260 ppm/°C |
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| Dielectric withstanding voltage: 1000 VAC: 12 to 100 watt rating. 3000VAC: 175 to 225 watt (measured from terminal to mounting bracket) | ||
To calculate max. amps: Use formula  |
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| Note: For adjustable resistor 100% of the resistance must be in the circuit for 100% of the rated wattage. By setting the adjustment at a lesser resistance the wattage will drop proportionately. Example: a 12 ohm resistor set at 4 ohms would be at 1/3 original wattage. |
| Type | Wattage | Dimensions (in. / mm) | Resistance Range |
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| L Length |
D O.D |
C I.D. |
Max. Working Voltage |
Fixed | Adjustable | ||
| TLV-12 | 12 | 1.75 / 44.4 | 0.313 / 7.94 | 0.188 / 4.76 | 565 | 0.1-51K | 1.0-10K |
| TLV-25 | 25 | 2.0 / 50.8 | 0.562 / 14.3 | 0.313 / 7.94 | 625 | 0.15-100K | 1.0-25K |
| TLV-50 | 50 | 4.0 / 101.6 | 0.562 / 14.3 | 0.313 / 7.94 | 1625 | 0.38-260K | 1.0-100K |
| TLV-100 | 100 | 6.5 / 165.1 | 0.750 / 19.1 | 0.50 / 12.7 | 2845 | 0.23-101K | 1.0-100K |
| TLV-175 | 175 | 8.5 / 215.9 | 1.125 / 28.6 | 0.75 / 19.1 | 3595 | 0.13-101K | 1.0-100K |
| TLV-225 | 225 | 10.5 / 226.7 | 1.125 / 28.6 | 0.75 / 19.1 | 4595 | 0.16-129K | 1.0-100K |
| TLV-500 | 500 | 12.0 / 304.8 | 2.50 / 63.5 | 1.75 / 44.5 | 4970 | 0.38-218K | 1.5-15K |
| TLV-1000 | 1000 | 20.0 / 508.0 | 2.50 / 63.5 | 1.75 / 44.5 | 8900 | 0.69-392K | 3.0-27.7K |
| Other sizes available. Consult factory. For non-inductive add "N" after wattage. |
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| Terminal Dimensions | ||||||||
| Lug Dimensions |
TLV-12 | TLV-25, 50 & 100 | TLV-175 & 225 | TLV-500 & 1000 | ||||
| Inch | MM | Inch | MM | Inch | MM | Inch | MM | |
| Width | .187 | 4.7 | .250 | 6.4 | .313 | 8.0 | .563 | 14.3 |
| Height | .438 | 11.1 | .563 | 14.3 | .625 | 15.9 | .750 | 19.1 |
| Hole Dia. | .104 | 2.6 | .166 | 4.2 | .196 | 5.0 | .206 | 5.2 |
| "Z" type mounting brackets standard. Other types available on request | ||||||||
| Derating Curve |
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use R for decimal. >100