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ASJ10L-LD1C Residual Current Operated Relay
■ Application: AC type of residual current measurement
■ Alarm (＞=100 % of the set response value IΔn)
■ Rated residual operated current (configurable)
■ Non-operated time limit(configurable)
■ 2 pcs relay outputs (configurable)
■ Distant&Local Test & Reset
■ DIN rail mounting type
The Residual Current Operated Relay is designed for fault and residual current monitoring in earthed power supply systems (TN and TT systems) where an alarm is to be activated in the event of a fault, but disconnection must be prevented.
The prewarning stage (50…100 % of the set response value IΔn) allow to distinguish between prewarning and alarm. Since the values are measured with current transformers, the device is nearly independent of the load current and the nominal voltage of the system.
■ Residual current monitoring in earthed two, three or four conductor systems
■ Current monitoring of single conductors de-energised
■ Socket-outlet circuits for devices
■ Alarm systems, safety devices
■ Air conditioning systems
■ Monitoring of earthed power supplies for stray currents
■ Impact on N conductors
■ Trace heating systems
Customer Story
SunTower Project
The Sun Tower project in Bangkok deployed a cloud-based solution with meters, gateways, and platform to enable remote electricity monitoring, real-time fault alerts, automated meter reading, and energy analysis across office and commercial floors.
EV Charger Project
The project for Chargers in Spain deployed the Acrel DJSF1352-RN/D DC meters, ADL200 single-phase meters, and ADL400 three-phase meters, providing integrated energy monitoring and management solutions with a total project value of approximately $250,000.
| Type of residual current | AC | |
| Power supply | Voltage | AC110V (±10%), AC220V (±10%) |
| Power consumption | No more than 5W | |
| Вход | Rated residual operated current I△n | 0.03, 0.1, 0.3, 0.5(A) |
| Time limit of nun-operation △t | 0.1, 0.5(s) | |
| Rated residual nun-operation current I△no | 50%I△n | |
| Operation type | AC sinusoidal current | |
| Frequency | 50 Hz ± 5 Hz | |
| Margin of error | -20% ~ -10%I△n | |
| Output | Output type | 1 NO + 1 changeover |
| Contact capacity | 5A 250V AC; 5A 30V DC | |
| Reset type | Local&distant | |
| Working environment | Temperature | -20℃~+55℃ |
| Related humidity | No more than 95% RH | |
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