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ASJ60 Series Residual Current Operated Relay
■ Application: AC and A types of residual current measurement
■ Max.16 circuits residual current monitoring(1mA-30A)
■ Separately adjustable response values(for each circuit)
■ Max.16 circuits residual current alarm relay
■ 2 pcs digital inputs
■ Communication: RS485, 4G
■ Events record (Max. 30 pcs)
■ DIN rail mounting type
ASJ60 – LD X1 X2 / X3
ASJ60 – LD —— Residual Current Monitoring Device
X1 —— Monitoring cirtuits, Max.16
X2 —— A: AC sinusoidal current, DC impulse current
C: AC sinusoidal current
X3 —— Communication type: C: RS485(Modbus RTU protocol) or 4G: 4G
Selected model:
ASJ60 – LD 16 A C
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.
The Residual Current Operated Relay is designed for fault and residual current monitoring in earthed power supply systems (TN-S 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.
■ Lighting systems
■ 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
| Type of residual current | A or AC | |
| Power supply | Voltage | AC/DC 85~265V |
| Power consumption | No more than 10VA | |
| Вход | Monitoring circuit q-ty | Max.16 |
| Measurement range of residual current | 0.001~30(A) | |
| Rated residual operation current I△n | 0.001~30(A) | |
| Operation type | AC sinusoidal current, DC impulse current OR AC sinusoidal current, |
|
| Frequency | 50 Hz ± 5 Hz | |
| Rated residual non-operation current I△no | 0~10s | |
| DI | 2 pcs passive dry contacts input | |
| Output | Output type | Max.16 circuits residual current alarm relay(NO) 1 circuit waterlogged alarm relay |
| Contact capacity | 5A 250V AC; 5A 30V DC | |
| Reclosing | Reclosing times | 0~99(adjustable) |
| Time interval | 0~999s(adjustable) | |
| Communication | Type 1 | RS485 port, Modbus-RTU protocol |
| Type 2 | 4G | |
| Working environment | Temperature | -20℃~+55℃ |
| Related humidity | No more than 95% RH | |
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