Overview
The ABB AL40-30-10 (part number 1SBL323001R8110) is an IEC-compliant magnetic contactor from ABB’s AL40 series. Designed for robust industrial automation and motor control applications, this 24V DC block-type contactor delivers reliable switching of 3-phase power circuits up to 690VAC. With low-consumption DC coils, it integrates seamlessly with PLC outputs for direct control without additional pilot circuitry.
Key Features
- 3-Pole Block Design: Compact, space-efficient construction with 54mm DIN rail footprint
- Low-Consumption DC Coil: 24V DC operation suitable for direct PLC control
- 1NO Auxiliary Contact: Built-in status feedback for system monitoring
- High Switching Capacity: 3,600 mechanical cycles/hour; 8×Ie AC-3 breaking capacity
- Screw-Clamp Connections: Reliable wire retention for 2.5–16mm rigid or 2.5–10mm flexible cable
- Wide Voltage Range: Operates on power circuits from 220V DC to 690V AC
Technical Specifications
- Rated Current (AC-3): 37A @ 380–440VAC; 40A @ 220–240VAC; 33A @ 500VAC; 21A @ 690VAC
- Rated Power (AC-3): 22kW @ 440–500VAC; 18.5kW @ 380–415VAC; 11kW @ 220–240VAC
- Control Coil Voltage: 24V DC (polarity A1+/A2– must be respected)
- Insulation Voltage (IEC): 1000V; (UL/CSA): 600V
- Rated Impulse Voltage: 8kV
- Auxiliary Contacts: 1NO front-mounted; add-on blocks available
- Operating Temperature: –40 to +70°C (without thermal overload relay); –25 to +55°C (with relay)
- Operate Time: 55–110ms (coil energization to NO close); 12ms typical (de-energization to open)
- Contact Material: Silver alloy main contacts, rated for 10 x Ie AC-3 making capacity
- Mounting: DIN rail or surface-mounted (54mm width)
- Certifications: IEC 60947-4-1, VDE 0110 (IEC), UL/CSA compliant
Typical Applications
ABB AL40-30-10 contactors excel in demanding industrial environments:
- Direct-on-line (DOL) and soft-start motor control
- 3-phase motor starters for pumps, fans, compressors, and conveyor systems
- Power-circuit isolation and switching
- Capacitor bank switching and load management
- Lighting and heating circuit control
- PLC-integrated automation systems without auxiliary relay logic
Compatibility & Replacements
Compatible With
- Allen-Bradley and Siemens PLCs with 24V DC discrete outputs
- IEC 61131-3 automation systems and control architectures
- Industrial power distribution systems: 220V DC to 690V AC single-phase and 3-phase
- Standard DIN-rail enclosures and electrical panel layouts
- Add-on auxiliary contact blocks (ABB AL series) for expanded logic
Replaces / Drop-In Replacement For
- AL40-30-10-87 (same ratings, alternative build code)
- Other AL40 series variants with equivalent 37A AC-3 / 22kW specifications
- Verify exact replacement compatibility with your system integrator, as contact configuration and coil voltage must match application requirements
Works With
- ABB EATON contactor accessories and thermal overload relays
- IEC 60947 compliant soft starters and variable frequency drives
- Industrial Ethernet and discrete control networks
- Studio 5000 (Allen-Bradley), TIA Portal (Siemens), and other IEC automation platforms for discrete I/O control
- Standard mechanical and electronic timers via auxiliary contacts
