Power Resistor AK-RES Series
Aluminium-housed power resistors for direct use with Akrodyn brake choppers, sized for your system voltage and braking power.
Every brake chopper requires a precisely dimensioned power resistor that converts the regenerative energy into heat. Resistors with too low a value overload the circuit; resistors with too high a value dissipate too little power and cannot adequately relieve the bus. Akrodyn offers matched aluminium-housed power resistors for all brake chopper variants, individually or as a set.
Features
- Aluminium die-cast housing for direct heat transfer to heatsink or metal sheet
- Precise resistance value for reliable system sizing
- High thermal load capacity, short-term overload capability
- Matched for all BC variants (0.4 Ω to 30 Ω)
- Can be used individually or in parallel/series configurations
- RoHS compliant
Available Power Classes (RXLG Series)
| Model | Rated Power | Dimensions (A×B mm) | Weight | Resistance Range |
|---|---|---|---|---|
| AK-RES-100W | 100 W | 140 × 125 | 0.19 kg | 10 Ω – 1 kΩ |
| AK-RES-200W | 200 W | 170 × 160 | 0.50 kg | 10 Ω – 10 kΩ |
| AK-RES-300W | 300 W | 220 × 210 | 0.50 kg | 10 Ω – 10 kΩ |
| AK-RES-500W | 500 W | 240 × 225 | 0.78 kg | 10 Ω – 10 kΩ |
| AK-RES-800W | 800 W | 340 × 325 | 0.96 kg | 10 Ω – 10 kΩ |
| AK-RES-1000W | 1 000 W | 400 × 390 | 1.35 kg | 50 Ω – 10 kΩ |
| AK-RES-1500W | 1 500 W | 400 × 390 | 3.00 kg | 50 Ω – 10 kΩ |
| AK-RES-2000W | 2 000 W | 400 × 390 | 3.00 kg | 50 Ω – 10 kΩ |
| AK-RES-2500W | 2 500 W | 400 × 390 | 3.00 kg | 50 Ω – 10 kΩ |
| AK-RES-3000W | 3 000 W | 450 × 440 | 4.20 kg | 50 Ω – 10 kΩ |
| AK-RES-3500W | 3 500 W | 450 × 440 | 4.20 kg | 50 Ω – 10 kΩ |
| AK-RES-4000W | 4 000 W | 550 × 540 | 5.00 kg | 0.5 Ω – 2.2 kΩ |
| AK-RES-5000W | 5 000 W | 400 × 380 | 7.10 kg | 0.5 Ω – 2 kΩ |
| AK-RES-6000W | 6 000 W | 450 × 430 | 7.50 kg | 0.5 Ω – 2 kΩ |
| AK-RES-7000W | 7 000 W | 550 × 530 | 10.5 kg | 0.5 Ω – 3.5 kΩ |
| AK-RES-8000W | 8 000 W | 650 × 630 | 12.5 kg | 0.5 Ω – 3 kΩ |
| AK-RES-10000W | 10 000 W | 650 × 630 | 12.5 kg | 0.5 Ω – 2.7 kΩ |
| AK-RES-11000W | 11 000 W | 650 × 630 | 12.5 kg | 0.5 Ω – 2.7 kΩ |
Standard resistance values per power class: 0.25 Ω · 0.5 Ω · 1 Ω · 2 Ω · 3 Ω · 10 Ω · 30 Ω · 60 Ω · 100 Ω. The resistance value is encoded directly in the SKU (example: AK-RES-500W-0R50 = 500 W, 0.5 Ω). Other resistance values available on request. For operation above 80 % of rated power, please observe the derating curve.
Recommended Brake Resistor Pairings
| Brake Chopper | Min. Resistance | Order SKU |
|---|---|---|
| BC-5600-410-30R00 | 30 Ω | AK-RES-4000W-30R0 |
| BC-10800-180-3R000 | 3 Ω | AK-RES-4000W-3R00 |
| BC-12800-80-0R500 | 0.5 Ω | AK-RES-5000W-0R50 |
| BC-18000-90-0R400 | 0.4 Ω | 2× AK-RES-5000W-CUST (0.8 Ω each, on request) |
| BC-80000-999-12R500 | 12.5 Ω | AK-RES-10000W-CUST (on request) |
System Sizing Note
For correct dimensioning, we recommend the Akrodyn brake chopper sizing calculator (in the datasheet). Do you need a custom configuration or a resistor outside the catalogue range? Contact us.
Scope of Delivery
- Power resistor (1 piece)
- Mounting screws
Downloads
- Akrodyn brake resistor selection table
Contact
Ready for your project?
From the first concept to series production – Together we develop solutions that inspire.