| Brand | Ametek Programmable Power |
|---|---|
| Power | 6 kW – 250 kW (water-cooled) |
| Voltage Models | 60 V / 120 V / 400 V / 600 V / 800 V / 1,000 V |
| Min Operating Voltage | ~0.1 V at full rated current |
| Operating Modes | CC, CV, CP, CR, Dynamic CC |
PLW Series — Water-Cooled DC Electronic Load (6 kW – 250 kW)
The Sorensen PLW Series is the water-cooled counterpart to the PLA, delivering 6 kW to 250 kW of DC electronic load capacity. Water cooling enables continuous operation at power levels that would be impractical with air cooling. The PLW supports ultra-low voltage operation down to 0.1 V — critical for fuel cell and electrolyser test.
- Power: 6 kW to 250 kW (water-cooled)
- Voltage models: 60 V, 120 V, 400 V, 600 V, 800 V, 1,000 V
- Ultra-low voltage operation: full rated current at voltages approaching 0.1 V
- Unique condensation protection design
- Individual FET protection for fault isolation
- Operating modes: CC, CV, CP, CR, Dynamic CC
- RoHS 3 compliant
- 1-year standard warranty
| Model | Power (W) | Voltage (V) | Current (A) |
|---|---|---|---|
| PLW6K-60-400 | 6,000 | 0–60 | 0–400 |
| PLW6K-400-60 | 6,000 | 0–400 | 0–60 |
| PLW15K-60-1000 | 15,000 | 0–60 | 0–1,000 |
| PLW15K-400-150 | 15,000 | 0–400 | 0–150 |
| PLW30K-60-1500 | 30,000 | 0–60 | 0–1,500 |
| PLW50K-400-600 | 50,000 | 0–400 | 0–600 |
The PLW Series enables testing at power levels that require active cooling beyond what air systems can provide. Water-cooled loads allow the same rack space to handle ten to fifty times more power than air-cooled alternatives, making the PLW essential for fuel cell testing, hydrogen electrolyser evaluation, EV battery pack cycling and power module characterisation. The ultra-low voltage capability — dissipating full rated current at 0.1 V — is a critical differentiator for fuel cell applications. The condensation protection system ensures safe operation even when the inlet water temperature fluctuates across the dew point.
Ultra-Low Voltage Operation
Dissipates full rated current at voltages approaching 0.1 V — essential for fuel cell and electrolyser test where cell voltage is near-zero under load.
Condensation Protection
Unique built-in condensation protection enables reliable operation in varying ambient temperature environments around water-cooled systems.
High-Power in Compact Form
Water cooling enables 250 kW+ of load capacity in a fraction of the rack space that equivalent air-cooled solutions would require.
Same Calibration Advantage as PLA
Front-panel closed-case calibration eliminates factory returns — critical for high-value, continuously deployed production test systems.
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