AC
Electrical quantities
Alternating Current
Current that periodically reverses direction.
- Typical use
- Utility supplies, transformers and AC equipment.
Electrical Full Forms
A focused glossary of common abbreviations used across RITOKS product selection, technical documentation and buyer inquiries.
14 glossary entries
CT
Measurement
Current Transformer
A transformer used to reproduce a primary current at a proportionate secondary value for measurement or protection.
- Typical use
- Current measurement and monitoring circuits.
DC
Electrical quantities
Direct Current
Current that flows with one polarity.
- Typical use
- Battery, photovoltaic and DC distribution systems.
DIN
Standards
Deutsches Institut für Normung
The German Institute for Standardization.
- Typical use
- DIN rail describes a standardized equipment mounting format.
MCB
Circuit protection
Miniature Circuit Breaker
A circuit breaker commonly used for overcurrent protection in final distribution circuits.
- Typical use
- Branch circuit and equipment protection.
MCCB
Circuit protection
Moulded Case Circuit Breaker
A circuit breaker in a moulded insulating case, commonly used where adjustable or higher current protection is required.
- Typical use
- Distribution and equipment protection.
OEM
Commercial
Original Equipment Manufacturer
A manufacturer supplying equipment or components for another company’s product or brand.
- Typical use
- Product sourcing and private-label discussions.
ODM
Commercial
Original Design Manufacturer
A manufacturer that develops and produces a product offered under another company’s brand.
- Typical use
- Product, branding and packaging discussions.
PDU
Power distribution
Power Distribution Unit
Equipment that distributes electrical power to multiple connected loads.
- Typical use
- Rack and equipment-cabinet power distribution.
PV
Solar / DC
Photovoltaic
Relating to the direct conversion of light into electrical energy.
- Typical use
- Solar generation and DC protection systems.
RFQ
Commercial
Request for Quotation
A buyer request asking a supplier to quote against defined requirements.
- Typical use
- Price, availability and exact-model requests.
SCR
Power semiconductors
Silicon-Controlled Rectifier
A controllable semiconductor switching device in the thyristor family.
- Typical use
- Controlled rectification and power conversion.
SPD
Circuit protection
Surge Protective Device
A device intended to limit transient overvoltages and divert surge current.
- Typical use
- Protection against transient surge events.
UPS
Power distribution
Uninterruptible Power Supply
A system that supplies power to a load when the normal source is interrupted.
- Typical use
- Continuity for critical equipment.
Need a term tied to a product decision?
Send the abbreviation, model or drawing reference with your application requirements.
Ask a technical question