AHT
- Constant power heating cable for temperature maintenance in industrial processes
- 500°C: maximum tolerance temperature with unpowered cable
- Suitable for both safe and hazardous zones (ATEX)
- Up to 150W/m
Notes on operation:
- Maximum tolerance temperature with unpowered cable: 500°C
- Minimum installation temperature: -40°C
- Minimum operating temperature: -65°C
- Power supply voltage: 220-277 V a.c.
- W/m available: 15, 30, 50, 70, 100, 150
Examples of application:
- Freeze protection and temperature maintenance of pipes, tanks, valves and pumps
- Application in industrial processes with design temperatures up to 180°C
Measurements (tolerances ± 10%):
| Model | Nominal dimensions (mm) | Minimum bending radius | Safe zone cable gland | ATEX cable gland |
|---|---|---|---|---|
| AHT | 10,7 x 7,7 | 25mm | M25 | M20 |
Maximum circuit length in metres depending on the size of the circuit breaker used and 230V ac power supply:
| Model | Starting temperature | 6A | 10A | 16A | 20A | 25A |
| 15 AHT | 10°C | 100 | 118 | |||
| '-40°C | 100 | 118 | ||||
| 30 AHT | 10°C | 46 | 76 | 83 | ||
| '-40°C | 46 | 76 | 83 | |||
| 50 AHT | 10°C | 28 | 47 | 64 | ||
| '-40°C | 28 | 47 | 64 | |||
| 70 AHT | 10°C | 20 | 33 | 54 | ||
| '-40°C | 20 | 33 | 54 | |||
| 100 AHT | 10°C | 14 | 23 | 37 | 46 | |
| '-40°C | 14 | 23 | 37 | 46 | ||
| 150 AHT | 10°C | 9 | 15 | 24 | 30 | 37 |
| '-40°C | 9 | 15 | 24 | 30 | 37 |
With differential circuit breaker protection 30 mA curve C according to IEC60898
Maximum pipe temperature:
| Model | T6 | T5 | T4 | T3 | T2 | T1 | Safe |
| 15 AHT | - | 36 | 71 | 160 | 289 | 350 | 350 |
| 30 AHT | - | 11 | 28 | 100 | 246 | 323 | 323 |
| 50 AHT | - | - | - | 39 | 178 | 276 | 276 |
| 70 AHT | - | - | - | - | 48 | 140 | 140 |
| 100 AHT | - | - | - | - | 48 | 140 | 140 |
| 150 AHT | - | - | - | - | - | 36 | 36 |
POWERHEAT AHT is a constant power parallel circuit heating cable built according to the latest international standards. It is suitable for operating temperatures up to 500°C and for applications in safe or explosion-proof zones (ATEX). The cable has a constant power in watts per metre regardless of its length and at any temperature and is a viable alternative to mineral insulated cables. As a parallel circuit heating cable, installation is quick and easy because it can be cut, branched and terminated to length directly on site without any need for special equipment or knowledge of the exact length when planning the electrical layout. Constant power cables, providing the same power in watts per metre, always require a control thermostat both to regulate the process temperature and to prevent overheating and burning.
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