| Series | Product Image | Max power | Special Versions | Resistance Value | PDF | Supplier |
| RNP |  | 560W .. 2.400W | Ribbon wound | 0.15Ω .. 3Ω |  |  |
| RMS |  | 650W .. 3.200W | Not-inductive, Multiple sections, Adjustable, Intermediate grip, Mica bar | 1.5Ω .. 90Ω |  |  |
| RDP |  | 600W .. 3.000W | Not-inductive, Multiple sections, Adjustable, Intermediate grip | 0.8Ω .. 150Ω |  |  |
| ROC |  | 15W .. 150W | Adjustable, Intermediate grip | 0.95Ω .. 2.800Ω |  |  |
| RCH |  | 350W .. 600W | Protection Degree IP65, Dielectric strength up to 25kV | 0.2Ω .. 50kΩ |  |  |
| ES |  | 0.5W .. 10W | High Power to Size Ratio, Entirely Welded Construction | - |  |  |
| ER/ERV |  | 3W .. 14W | axial, silicone coated | - |  |  |
| KNX |  | - | Non Flammable, PCB direct-mounting type, Space saving type | - |  |  |
| FC |  | 2W .. 10W | radial, pluggable | - |  |  |
| BFA |  | 521W .. 811W | rheostats | - |  |  |