DI802 3BSE022360R1 ABB Ac digital input module AC 800M System 800A

DI802 3BSE022360R1 ABB Ac digital input module AC 800M System 800A

The ABB DI802 is an 8-channel AC digital input module in the AC 800M distributed control system, specifically developed for reliable acquisition of 115 V AC discrete signals. This module is widely used to receive 110-120 V AC field signals from auxiliary contacts of high-voltage equipment, position switches of circuit breakers, alarm relays of transformers, status feedback of motor control centers (MCC), etc., without the need for additional signal conditioning or intermediate relay conversion.

Core features

8-channel independent AC digital input
Input voltage: 115 V AC (Applicable range: 90-140 V AC, 50/60 Hz)
Compatible with active contacts (such as auxiliary contacts of circuit breakers) or passive dry contacts (an external AC query power supply is required)
Input impedance: approximately 10 kΩ (limiting input current and reducing power consumption)
High electrical isolation and safety
Photoelectric isolation is achieved between the channel and the system backplane
Isolation voltage: ≥ 2500V AC (1 minute), in compliance with high-voltage safety standards
Surge resistance: ±4 kV (IEC 61000-4-5)
Anti-interference optimization design
Built-in filter circuit to suppress power grid noise and transient interference
Minimum ON/OFF recognition time: 10 ms (preventing jitter misjudgment)

Technical parameters

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