Arc Flash Protection Sensor

Features

1) Fully localized (Chinese) LCD display with a clear and intuitive human-machine interface, allowing for extremely convenient operation and parameter configuration;

2) Comprehensive logging of anomalies, events, and operations, with all information retained even in the event of a power failure;

3) Optional Ethernet communication interface, integrating the IEC60870-5-103 communication protocol;

4) Equipped with an RS485 communication interface, integrating the standard MODBUS communication protocol;

5) Equipped with a CAN communication interface, integrating the standard MODBUS communication protocol;

6) Compact and refined form factor with a well-engineered structure; utilizes high-grade, high-quality components, multi-layer PCB technology, and SMT processing to ensure superior electrical performance;

7) Features a complete circuit breaker control loop.

Technical Parameters

1) Rated Operating Voltage: AC 220V; DC 220V / DC 110V / DC 48V

2) Rated Technical Data:

a) AC Current: 5A or 1A

b) AC Voltage: 400V or 100V

c) Frequency: 50 Hz

3) Power Consumption: Operating Power Supply: ≤ 5W during normal operation; ≤ 10W during protection operation. AC Current Circuits: <1 VA/phase (IN=5A); <0.5 VA/phase (IN=1A); AC Voltage Circuits: <0.5 VA/phase;

4) Precision Operating Range: Current: 0.08 In – 20 In; Voltage: 0.5 V – 1.2 Un; Time: 0 – 100 s

5) Protection Function Accuracy:

a) Setting Value Accuracy: ≤ ±5%;

b) Time Accuracy: < ±1% × Setting Time + 35 ms;

c) Total Operation Time (Trip Time): ≤ 35 ms;

d) Frequency Accuracy: ≤ ±1%;

6) Digital Inputs (Switch Inputs):

Input Type: Passive, Optically Isolated

Number of Inputs: 3

Operating Voltage: AC 220 V, DC 220 V, or DC 110 V

7) Output Contact Capacity:

a) Trip Relay Contacts (Output Relays): Rated Current Capacity: 250 VAC / 220 VDC, 5 A; Output Type: Passive (Dry Contacts)

b) Signal Relays: Rated Current Capacity: 250 VAC / 220 VDC, 5 A; Output Type: Passive (Dry Contacts); Address: 1 – 99; Communication Medium: Shielded Cable

8) Arc Flash Signals:

Input Type: Passive (Two options available: Fiber Optic or Cable)

Number of Inputs: 4

Operating Voltage: AC 220 V, DC 220 V, or DC 110 V

9) Communication Interface: Quantity: 1

Electrical Characteristics: RS485

Transmission Mode: Asynchronous

Communication Protocols: IEC 60870-5-103 and Modbus