ABB 1SBL281001R8010 3-Pole Contactor

Product Description

Detailed Specifications

Key Advantages and Features

1. High Current Handling Capacity
   With a rated operational current of 95A (AC-3, 400V AC), the contactor efficiently controls medium-sized AC motors (up to ~45kW at 400V AC) and heavy resistive loads. Its high making/breaking currents (950A/760A) withstand inrush currents during motor startup, preventing contact damage and ensuring reliable switching.
2. Durable Contact Design
   Silver-nickel (AgNi) alloy contacts minimize contact resistance (reducing power loss and overheating) and resist welding—even under repeated inrush current conditions. This extends the contactor’s electrical life to 1 million operations (AC-3), reducing maintenance frequency and downtime.
3. Energy-Efficient Coil
   The low-power coil (17VA pick-up, 5VA hold) reduces energy consumption compared to conventional contactors, lowering operational costs—especially in applications where the contactor remains energized for extended periods (e.g., continuous motor operation).
4. Wide Temperature Adaptability
   Operating reliably from -25°C to +60°C (no derating) and up to +70°C (with derating), the contactor suits diverse environments—from cold storage facilities to warm industrial workshops—without compromising performance.
5. Compact & Modular Construction
   The space-saving design (85mm width) allows dense mounting in control panels or MCCs, optimizing cabinet space. Modular auxiliary contact blocks (optional) can be added to expand functionality (e.g., status monitoring, interlocking), enhancing flexibility for custom control systems.
6. Enhanced Safety
   Class F insulation (155°C) provides robust protection against thermal damage, while IP20 protection (when enclosed) prevents accidental contact with live parts. Compliance with global safety standards (IEC, UL, cUL) ensures compatibility with international electrical systems.

Application Areas

• Motor Control: Starting and stopping medium-sized AC motors (e.g., 15–45kW pumps, fans, conveyors, and machine tools) in manufacturing plants, wastewater treatment facilities, and commercial HVAC systems.
• Power Distribution: Switching main or branch circuits in low-voltage distribution panels for commercial buildings (shopping malls, office towers) and industrial facilities.
• Heating Control: Managing resistive loads such as industrial heaters, electric boilers, and HVAC heating elements in food processing plants, warehouses, and data centers.
• Infrastructure Projects: Controlling auxiliary equipment (e.g., ventilation fans, water pumps) in hospitals, airports, and railway stations—where reliability and safety are critical.
• Renewable Energy: Switching power from solar inverters or wind turbine auxiliary systems to distribution networks, supporting stable energy transmission.

Usage Notes

1. Correct Coil Voltage Selection
   Ensure the coil voltage (230V AC for 1SBL281001R8010) matches the control circuit voltage. Using an incorrect voltage will damage the coil or cause unreliable operation (e.g., failure to pick up or drop out).
2. Load Compatibility Check
   Verify the contactor’s rated current (Ie) and duty cycle (AC-3 for motors, AC-1 for resistive loads) match the application. For motor loads exceeding 45kW (400V AC), select a higher-rated contactor to avoid overload.
3. Proper Mounting
   Mount the contactor on a flat, rigid surface (e.g., metal control panel) using the provided mounting holes. Ensure vertical installation (as per ABB guidelines) to prevent overheating and ensure optimal contact performance. Maintain a minimum clearance of 10mm around the contactor for airflow.
4. Wiring Requirements
   Use copper cables of appropriate cross-section (e.g., 16mm² for main contacts, 1.5mm² for control circuit) and torque terminal screws to the recommended value (2.5–3 N·m for main terminals, 1–1.5 N·m for control terminals). Loose connections cause overheating and contact damage.
5. Surge Protection
   For inductive loads (e.g., motors), install an RC snubber or varistor across the contactor’s main contacts to suppress voltage spikes during switching—this extends contact life and protects nearby electronic devices.
6. Maintenance & Inspection
   • Periodically check for loose connections, contact arcing marks, or coil overheating (via visual inspection or temperature measurement).
   • Clean dust from the contactor using compressed air (low pressure) to prevent insulation degradation.
   • Replace the contactor if contacts show excessive wear (e.g., contact thickness <50% of original) or the coil fails to energize.
7. Genuine Accessories Only
   Use ABB-approved auxiliary contact blocks or surge protection components to maintain compatibility and avoid voiding the product warranty.