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ABB DSTDW130 Connection Unit  

1. Key Parameters

• Product Model: DSTDW130
• Alternate Order Code: 57160001-YX
• Product Series: ABB Industrial Wiring & Signal Distribution Connection Units
• Core Function: Centralizes wiring between ABB controllers and field devices; distributes power/signal to auxiliary components; filters electrical noise from input/output signals; provides secure, organized terminal connections for easy maintenance
• Terminal Specifications:

  Terminal Type	Number of Terminals	Wire Gauge Range	Rated Current/Voltage	Connection Method	Key Function
  Power Terminals	8 (4 input, 4 output)	0.5mm² ~ 2.5mm² (20AWG ~ 14AWG)	10A / 250V AC/DC	Screw-clamp (M3 screws)	Distributes 24V DC control power to field devices
  Signal Terminals	24 (12 input, 12 output)	0.14mm² ~ 1.5mm² (26AWG ~ 16AWG)	3A / 60V DC	Screw-clamp (M2.5 screws)	Transmits analog/digital signals (4~20mA, 24V DC) between controllers and sensors
  Ground Terminals	4	1.0mm² ~ 2.5mm² (18AWG ~ 14AWG)	-	Screw-clamp (M3 screws)	Provides protective earth (PE) for grounded devices

• Electrical Performance:
  • Signal Filtering: Integrated RC low-pass filters (cutoff frequency: 1kHz) for analog signal terminals; reduces electrical noise (50/60Hz interference) from industrial grids
  • Isolation: 1kVrms (between power terminals and signal terminals; prevents ground loops)
  • EMC Immunity: Compliant with IEC 61000-6-2 (industrial environment); ESD protection: ±8kV (contact), ±15kV (air)
• Mechanical Specifications:
  • Housing Type: Flame-retardant polyamide (UL94 V-0); DIN rail-mountable (35mm standard rail, TS 35/7.5 or TS 35/15)
  • Dimensions (W×H×D): 35mm × 120mm × 90mm (compact, space-saving design for control cabinets)
  • Mounting: DIN rail-mounted (snap-on installation; no additional tools required)
  • Weight: Approximately 280g
  • Labeling: Pre-printed terminal labels (e.g., "PWR IN 1", "SIG OUT 5", "GND") + blank writable labels for custom identification
  • Protection Rating: IP20 (front panel; protection against finger contact and small objects)
• Environmental Ratings:
  • Operating Temperature Range: -20℃~+60℃ (-4℉~140℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃; suitable for damp industrial settings)
  • Vibration Resistance: 10~500Hz, 1.5g acceleration (IEC 60068-2-6; no terminal loosening)
  • Shock Resistance: 20g acceleration (11ms duration, IEC 60068-2-27; maintains structural integrity)
• Compliance Standards: IEC 60947-1 (low-voltage switchgear), EN 61000-6-2 (EMC immunity), UL 1059 (terminal blocks), CE, RoHS

2. Key Features

• ABB Ecosystem Compatibility: Optimized for ABB controllers (AC500 PLCs, 800xA DCS) and field devices—terminal spacing, voltage/current ratings, and signal filtering match ABB’s automation system requirements, eliminating wiring mismatches (e.g., incompatible wire gauge, insufficient current capacity) common with generic connection units.
• Centralized Wiring & Organization: Combines power, signal, and ground terminals in a single unit—reduces clutter in control cabinets, simplifies wiring tracing during maintenance, and minimizes the risk of loose or misconnected wires (a leading cause of industrial system downtime).
• Integrated Signal Filtering: RC low-pass filters on analog signal terminals suppress 50/60Hz grid noise and electromagnetic interference (EMI) from nearby motors/VFDs—ensures clean signal transmission for sensitive sensors (e.g., 4~20mA pressure transmitters), improving controller measurement accuracy.
• Flame-Retardant & Rugged Design: UL94 V-0 flame-retardant housing prevents fire spread in case of electrical faults, while 1.5g vibration resistance and -20℃~+60℃ temperature range ensure durability in harsh industrial environments (e.g., automotive factories, cement plants).
• Flexible Wire Compatibility: Supports a wide wire gauge range (0.14mm²~2.5mm²) for both power and signal terminals—accommodates diverse field devices (from small 24V sensors to higher-current contactors) without requiring additional terminal blocks.
• Easy Installation & Maintenance: Snap-on DIN rail mounting enables tool-free installation; pre-printed and writable terminal labels simplify identification; screw-clamp terminals ensure secure wire connections that resist loosening from vibration—reduces installation time by up to 30% compared to disorganized wiring.
• 1kVrms Isolation: Isolation between power and signal terminals prevents ground loops (common in large automation systems) from corrupting signal data or damaging sensitive controller inputs—critical for reliable operation in plants with distributed grounding systems.

3. Application Fields

• ABB PLC/DCS Wiring Integration: Primary application—centralized connection for ABB control systems:
  • Manufacturing Automation: Connects ABB AC500 PLCs to factory floor sensors (proximity sensors, photoelectric switches) and actuators (solenoid valves, small motors); signal filtering ensures accurate detection of part presence, while organized terminals simplify troubleshooting of wiring issues (e.g., a misconnected sensor).
  • Process Control Facilities: Distributes power and signals between ABB 800xA DCS and field instruments (temperature transmitters, flow meters) in chemical/petrochemical plants; isolation between power and signal terminals prevents ground loops from disrupting process data, ensuring compliance with safety standards (e.g., SIL 2).
• Auxiliary Component Power Distribution: Supplies power to automation system peripherals:
  • Machine Tool Control: Powers and connects auxiliary components (relays, indicator lights, emergency stop buttons) for CNC machine tools; wide wire gauge support accommodates both low-current signals (E-stop status) and higher-current relay coils, reducing cabinet space usage.
  • Food & Beverage Processing: Organizes wiring for ABB controller connections to hygiene-rated sensors (e.g., level sensors in tanks) and actuators (e.g., valve positioners); IP20 protection prevents debris from entering terminals, complying with food safety hygiene standards.
• Harsh-Environment Automation: Supports reliable wiring in challenging settings:
  • Automotive Assembly Lines: Withstands vibration from robotic arms and welding equipment; signal filtering reduces EMI from welding machines, ensuring accurate communication between ABB PLCs and conveyor position sensors—prevents production line jams from misdetected parts.
  • Mining Auxiliary Systems: Connects ABB controllers to ventilation fan sensors and pump actuators in underground mines; wide temperature range (-20℃~+60℃) adapts to varying underground conditions, while rugged terminals resist loosening from mine vibrations.
• Legacy System Upgrades: Modernizes wiring for older ABB setups:
  • Factory Retrofits: Replaces disorganized, unlabeled wiring in legacy ABB ACS550 VFD control cabinets; centralized terminals and filtering improve signal reliability, extending the lifespan of older automation systems without full replacement.
  • Building Automation: Integrates ABB controllers with HVAC sensors (temperature, humidity) and actuators (damper motors); organized wiring simplifies maintenance of building control systems, reducing downtime for heating/cooling services.

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