Description
GYL9-B Type B RCCB
The GEYA GYL9-B is a Type B residual current circuit breaker for circuits where the protection design requires detection of sinusoidal AC, pulsating DC, smooth DC, composite-wave and higher-frequency residual currents up to 1 kHz.
Residual-Current Waveform Coverage
Select Type B when the assessed residual-current waveform requires the published coverage below.
- Sinusoidal AC residual currents
- Pulsating DC residual currents
- Smooth DC residual currents
- Composite-wave residual currents
- Higher-frequency residual-current components up to 1 kHz
Working Frequency and Detection Band
The circuit working frequency is 50/60 Hz. The up-to-1 kHz value describes the residual-current detection range; it is not the rated supply frequency.
Ratings and Configuration
Catalogue options include 230/240 V or 400/415 V, 16 to 100 A across nine listed current ratings, 30/100/300 mA, and 1P+N or 3P+N. Available combinations depend on the selected order configuration; contact GEYA for the complete ordering matrix.
Installation and Service Data
- TH35-7.5 DIN-rail mounting and IP20 degree of protection
- 2.5 N·m terminal tightening torque
- 1-35 mm² conductor capacity
- 10,000 mechanical and 4,000 electrical operating cycles
EV Charging Selection Boundary
For EV charging equipment that requires dedicated 6 mA smooth DC detection, select the GYL9-EV. Do not treat the standard GYL9-B as an equivalent substitute for that requirement.
Protection Coordination
The GYL9-B is an RCCB for residual-current protection. Coordinate separate overload and short-circuit protection for the circuit.
Reference Standards and Catalogue
The GYL9-F/B catalogue lists IEC/EN 61008-1, IEC/EN 62423, GB/T 22794 and GB/T 16916.1 as reference standards. Review the GYL9 Type B / Type F catalogue and confirm the required order configuration with GEYA.
