SQIC-2000 Intelligent Controller
Dual-source ATS control with synchronism checking, supporting both open and closed-transition transfer for mains and generator applications.
Availability, ratings, dimensions and technical data must be confirmed against the selected model.
Designed around your application.
Dual-source ATS control for Mains/Mains, Mains/Generator and Generator/Generator systems — monitoring, transfer and generator control in one module.
Electrical monitoring. S1/S2 voltage, frequency and phase. Load current, power, power factor and energy. Over/undervoltage, over/underfrequency, phase loss and phase reversal detection.
Automatic and synchronised transfer. Configurable source priority and restoration. Frequency and phase-angle checking with optional voltage-difference checking, supporting both open and closed transition.
Generator control. Start/stop commands and scheduled tests. Dual-generator modes include cyclic, priority and balanced run-time operation.
Load management. Up to four sequential load outputs and three non-essential load (NEL) shedding stages, subject to assigned I/O.
Operation and diagnostics. 132 × 64 backlit LCD with English/Chinese display, manual and auto modes. Voltage and current THD with odd harmonic orders from the 3rd to the 21st. 200 events and 5 black-box records, each covering 50 s before and 10 s after an automatic transfer event.
3-phase 3-wire systems are not supported. Relay contacts are volt-free.
Naming system. SQIC – 2000 – O – CM: 2000 = to control 2 breakers (3000 = to control 3 breakers); S = synch. transfer, close transition; O = open transition; CM = current measurement (blank = without current measurement). Product type: SeQuence Intelligent Controller (SQIC).
Key information
- Power supply8–35 VDC; 90–305 VAC via S1/S2 sensing
- Voltage inputs3-phase 4-wire: 80–520 V L-L; 2-phase 3-wire: 80–520 V A-B; 1-phase 2-wire: 50–305 V L-N
- Frequency50/60 Hz nominal; 15–75 Hz measurement
- Current inputs5 A CT secondary; 0–10 A measurement
- Consumption< 4 W (standby < 2 W)
- Integrated I/O6 inputs (2 fixed + 4 programmable); 8 outputs (2 fixed + 6 programmable)
- Contact ratingsS1/S2 close + outputs 1–2: 16 A at 250 VAC; outputs 3–6: 8 A at 250 VAC
- CommunicationModbus RTU, Modbus TCP/IP; USB parameter configuration
- Display132 × 64 backlit LCD
- ProtectionFront IP65 with sealing gasket; rear IP20
- Panel cutout186 × 141 mm
- Overall size260 × 180 × 54 mm
- Environment−25 to +70 °C; 20–93% relative humidity