Freely contact Cheryl Qi
Cheryl Qi➪ Email : chen@htechplc.com
Cheryl Qi➪ WhatsApp : +8618150137565
Cheryl Qi➪ Wechat : +8618150137565
Cheryl Qi➪Phone :+8618150137565
Know more information below
➪Brand/Manufacturer: ABB
➪Part number:DI821 3BSE008550R1
➪Country of origin: Sweden
➪Condition:New with 1 year warranty
➪About shipping:DHL,UPS,FedEx,and TNT
➪Payment:100% T/T for stock items before shipping
Basic Product Identification
Model & Article Number: Model DI821, article number 3BSE008550R1.
Product Category: Digital input module, part of ABB’s Ability™ System 800xA® platform, designed
for the S800 I/O mechanical system.
Core Purpose: Used to collect high-voltage digital signals (230 V AC/220 V DC) from field devices in
industrial control systems, suitable for scenarios requiring high-voltage signal acquisition.
Core Functional Characteristics
Channel Configuration: 8 digital input channels, with current sinking signal type.
Isolation Performance: Channels are individually isolated, effectively preventing cross-interference
between different input signals and enhancing signal stability.
Voltage Supervision: Channel 1 serves as the voltage supervision input for channels 2–4; channel 8
supervises channels 5–7. If the supervision voltage is lost, the Warning LED illuminates, and the error
signal can be read via ModuleBus for timely fault detection.
Signal Processing: Each channel is equipped with current limiting components and EMC protection
components; supports selectable digital filter times (2/4/8/16 ms) and analog filtering (On delay 5 ms,
Off delay 28 ms) to filter out interference and ensure reliable signal acquisition.
Status Indication: Front-panel LEDs include Fault (F), Run (R), Warning (W), and Channel 1–8 status
indicators, enabling on-site personnel to quickly check module operation and channel signal status.
Key Limitations: No HART protocol support, no SOE (Sequence of Events) function, no redundancy
design, and no high integrity or intrinsic safety features.
Technical Specifications
Input Voltage Range:
"0" state: 0–50 V AC / 0–40 V DC.
"1" state: 164–264 V AC / 175–275 V DC.
Input Parameters:
Input current: 11 mA @ 230 V AC / 1.6 mA @ 220 V DC.
Input impedance: 21 kΩ (AC) / 134 kΩ (DC).
Input frequency range: 47–63 Hz.
Insulation & Protection: Rated insulation voltage 250 V; dielectric test voltage 2000 V AC, meeting
high-voltage insulation requirements.
Cable Length: Maximum 200 m (AC, 100 pF/m) / 600 m (DC), adapting to long-distance signal
transmission in industrial sites.
Power Consumption: Typical 2.8 W; current consumption 50 mA @ +5 V ModuleBus, 0 mA for +24 V
ModuleBus and external +24 V (no external power supply required).
Mechanical Dimensions: Width 45 mm (1.77”), depth 102 mm (4.01”) (111 mm/4.37” including
connector), height 119 mm (4.7”); weight 0.18 kg (0.4 lbs.), consistent with S800 series module size
standards.
Environmental Adaptability
Temperature Range: Operating 0–+55 °C (+32–+131 °F, approvals apply to +5–+55 °C); storage -40–+70 °C (-40–+158 °F).
Humidity & Pollution: 5–95% relative humidity (non-condensing); pollution degree 2 (per IEC 60664-1), suitable for most industrial environments.
Special Adaptability: Corrosion protection compliant with ISA-S71.04: G3; maximum ambient temperature 55 °C (131 °F) for vertical mounting, 40 °C (104 °F) for compact MTU mounting.
Protection Class: IP20 (per IEC 60529), focusing on internal circuit protection.
