Industrial rectifiers for substations
The CIB family brings together switched and thyristor-based rectifiers designed and manufactured by NPT for substations and industrial direct-current systems.
Three rectifiers, one engineering
Each model in the CIB family serves a distinct voltage, current, and format range — while maintaining the same NPT standard of quality and technical support.

CIB.S
Modular switched industrial rectifier for direct-current systems.
- Voltage
- 24 / 48 / 125 VDC
- Modular capacity
- Up to 12 RUs RM

CIB.SP
Compact, portable version of the NPT switched rectifier, with up to 12 kW and a 19" rack alternative.
- Voltage
- 24 / 48 / 125 VDC
- Power
- Up to 12 kW

CIB.T
Industrial thyristor-based rectifier for high-power direct-current systems, with up to 2,000 A.
- Voltage
- 24 / 48 / 110 / 125 / 220 VDC
- Current
- Up to 2,000 A
Three families. Many configuration possibilities.
CIB.S, CIB.SP, and CIB.T work as platforms for different application profiles. The final configuration is defined based on each project’s electrical, construction, and operational requirements.
We do not adapt the project to the product.
We configure the product for the project.
Side-by-side specifications
Compare technology, voltage range, current, and format of the three models before talking to our technical team.
| Characteristic | CIB.S | CIB.SP | CIB.T |
|---|---|---|---|
| Technology | Switched | Portable switched | Thyristor-based |
| Rated DC voltages | 24 / 48 / 125 VDC | 24 / 48 / 125 VDC | 24 / 48 / 110 / 125 / 220 VDC |
| Main capacity | Up to 12 RUs RM | Up to 12 kW | Up to 2,000 A |
| Format | Floor-standing industrial enclosure | Portable unit or 19" rack drawer | Industrial panel per specification |
| View details | View details | View details |
CIB.S
- Rated DC voltages
- 24 / 48 / 125 VDC
- Main capacity
- Up to 12 RUs RM
- Format
- Floor-standing industrial enclosure
CIB.SP
- Rated DC voltages
- 24 / 48 / 125 VDC
- Main capacity
- Up to 12 kW
- Format
- Portable unit or 19" rack drawer
CIB.T
- Rated DC voltages
- 24 / 48 / 110 / 125 / 220 VDC
- Main capacity
- Up to 2,000 A
- Format
- Industrial panel per specification
The choice does not end at the table.
Load, battery, redundancy, environment, and maintenance also define the architecture. Check the technical guide before finalizing the specification.
Questions about the CIB line
Need to specify a rectifier?
Tell our team the voltage, current, and application of your project. We’ll get back to you with the right technical configuration for your direct-current system.



