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ABB A50-30-00 1SBL351001R8000 Contactor  

1. Key Parameters

• Product Model: ABB A50-30-00 (Ordering Part Number: 1SBL351001R8000)
• Product Series: ABB A-Series Industrial AC Contactors (Medium-Power Load Switching)
• Core Function: Switches AC power to medium-power loads (e.g., 3-phase motors); provides arc suppression during contact operation; enables remote control via low-voltage coil signals; supports integration with overload relays for comprehensive motor protection; ensures reliable operation in cyclic switching scenarios
• Electrical & Switching Specifications:

  Parameter	Details	Performance Metrics
  Main Contacts (Power Circuit)	- Configuration: 3 Normally Open (NO) contacts (3-phase) - Rated Operational Current (Ie): 50A (AC-3 duty, 400V) - Rated Making Current: 500A (peak, 400V) - Rated Breaking Current: 250A (rms, 400V) - Rated Voltage (Ue): 400V AC (max 690V AC) - Duty Cycle: AC-3 (motor starting, running, stopping—100 starts/hour)	AC-3 duty rating suits 90% of industrial motor control applications; high making/breaking current tolerates inrush during motor startup
  Auxiliary Contacts (Control Circuit)	- Configuration: 0 Normally Open (NO) + 0 Normally Closed (NC) (expandable via auxiliary contact blocks) - Rated Current: 6A (AC-15, 230V) - Voltage Rating: 230V AC / 24V DC	Expandable auxiliary contacts support custom control logic (e.g., interlocks, status indicators); AC/DC compatibility enhances flexibility
  Coil Specifications	- Voltage Ratings (Selectable): 24V DC, 110V AC, 230V AC, 400V AC - Coil Power Consumption: 7VA (no-load); 45VA (pick-up) - Coil Resistance: 16Ω (24V DC); 1.8kΩ (230V AC) - Dielectric Strength: 2.5kV AC (coil to frame, 1 minute)	Low no-load power consumption reduces energy waste; wide voltage range suits global electrical systems

• Mechanical & Environmental Specifications:

  Parameter	Details	Performance Metrics
  Mechanical Design	- Dimensions: 85mm (W) × 120mm (H) × 95mm (D) - Mounting Type: 35mm DIN rail (EN 50022) or panel mount (via adapter) - Housing Material: Flame-retardant thermoplastic (UL 94 V0) - Weight: Approximately 450g - Arc Suppression: Built-in arc chutes (ferrite material)	Compact size fits standard control cabinets; flame-retardant housing enhances safety in electrical enclosures; arc chutes prevent contact erosion
  Environmental Ratings	- Operating Temperature Range: -25℃~+60℃ (-13℉~140℉) - Storage Temperature Range: -40℃~+85℃ (-40℉~185℉) - Humidity Tolerance: 5%~95% RH (non-condensing, 40℃) - Vibration Resistance: 10~50Hz, 1g acceleration (IEC 60068-2-6) - Shock Resistance: 30g (11ms half-sine, IEC 60068-2-27)	Wide temperature range suits unconditioned industrial spaces; vibration tolerance prevents contact chatter in machinery-heavy environments

• Compliance Standards: CE, UL 508, CSA C22.2 No.14, IEC 60947-4-1, RoHS, EN 61000-6-2 (EMC immunity) |

2. Core Features

• AC-3 Duty Rating for Motor Control: 50A rated current at 400V (AC-3)—specifically designed for motor starting, running, and stopping (100 starts/hour), making it ideal for cyclic applications (e.g., compressors, irrigation pumps) where frequent switching is required.
• High Current Handling Capacity: 500A peak making current and 250A rms breaking current—tolerates inrush currents during motor startup (typically 5~7× rated current) without contact damage, ensuring long-term reliability.
• Built-In Arc Suppression: Ferrite arc chutes—extinguish electrical arcs during contact opening/closing, reducing contact erosion and extending contact lifespan to 100,000+ operations (AC-3 duty), lowering maintenance frequency.
• Expandable Auxiliary Contacts: Supports add-on auxiliary contact blocks (e.g., ABB CA5-10, CA5-01)—enables custom control logic (e.g., emergency stop interlocks, status LEDs) without replacing the entire contactor, enhancing flexibility.
• Global Voltage Compatibility: Coil options for 24V DC to 400V AC—suits diverse electrical systems (e.g., 230V AC in Europe, 110V AC in North America, 24V DC in industrial control circuits), simplifying global inventory management.
• Flame-Retardant & Compact Design: UL 94 V0 housing and 85×120×95mm dimensions—fits tight control cabinet spaces while meeting fire safety standards; DIN rail/panel mount options adapt to different installation layouts.
• Low Energy Consumption: 7VA no-load coil power—reduces standby energy waste in systems where contactors remain energized for extended periods (e.g., continuous-duty fans), lowering operational costs.

3. Application Fields

• Manufacturing & Industrial Automation: Motor switching for machinery:
  • Conveyor Systems: Controls 3-phase conveyor motors (0.75kW~15kW, 400V)—AC-3 duty handles frequent starts/stops; arc suppression ensures reliable operation in dusty factory environments.
  • Compressors & Pumps: Switches power to air compressors and hydraulic pumps—high making current tolerates startup inrush; expandable auxiliary contacts trigger pressure/temperature interlocks.
• Water & Wastewater Utilities: Pump control:
  • Submersible Pumps: Controls 3-phase submersible pumps (up to 15kW)—wide temperature range (-25℃~+60℃) suits outdoor pump stations; flame-retardant housing enhances safety in electrical enclosures.
  • Aeration Blowers: Switches blower motors for wastewater treatment—low coil power consumption reduces energy use in 24/7 operations; compatibility with overload relays (e.g., ABB TA25DU) prevents motor burnout.
• Building Automation & HVAC: Comfort system control:
  • HVAC Fans & Chillers: Controls supply/return fan motors and chiller compressors—230V/400V coil options fit building electrical systems; auxiliary contacts integrate with BMS for status monitoring.
  • Elevator & Escalator Systems: Switches power to elevator door motors and escalator drives—shock/vibration resistance ensures reliability in high-traffic buildings; arc chutes prevent contact degradation from frequent use.
• Agriculture & Irrigation: Heavy-duty outdoor applications:
  • Irrigation Pumps: Controls large-scale irrigation pump motors (up to 15kW)—wide humidity tolerance (5%~95% RH) suits outdoor enclosures; AC-3 duty handles daily start/stop cycles for crop watering.
  • Grain Handling Equipment: Switches power to grain conveyor and elevator motors—flame-retardant housing reduces fire risk in dusty environments; DIN rail mounting simplifies installation in farm control panels.
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The structure and details of the product：

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