Description
Core Product Summary
The ABB / Entrelec / Schiele DL42N-22 is a heavy-duty industrial AC electromagnetic contactor designed for reliable power switching, automated load control, and motor start-stop applications. Engineered for standard DIN-rail mounting within electrical control enclosures, it serves as a robust primary switching element for three-phase industrial loads such as motors, heaters, and heavy-duty actuators.
This unit integrates an electromagnetic actuation coil, silver-alloy main power contacts, a built-in arc extinguishing chamber, and auxiliary contact configurations. It handles repeated switching operations across automated production lines, pump and fan assemblies, and industrial machinery control panels while feeding back operational status signals to upstream control or protection equipment.
Key Technical Specifications
| Parameter | Specification Details |
| Product Type | Industrial AC Power Contactor / Motor Controller |
| Brand / Line | ABB / Entrelec (Schiele) |
| Model / Order Code | DL42N-22 |
| Main Pole Configuration | 3-Pole Main Power Contacts |
| Auxiliary Contacts | 2 Normally Open (NO) / 2 Normally Closed (NC) |
| Mounting Type | DIN-rail / Control Cabinet Panel Mount |
| Enclosure Material | Flame-retardant industrial molded plastic housing |
Detailed Product Overview
The DL42N-22 contactor acts as a critical interface between low-voltage automation control signals and high-power industrial loads. When control voltage is applied to the electromagnetic coil, generated magnetic force pulls the movable contact assembly inward, closing the main power paths to energize the load. De-energizing the coil allows internal return springs to instantly reset the contact mechanism, breaking the circuit safely.
Equipped with dual normally open and dual normally closed auxiliary contacts, the device supports complex interlocking and status telemetry loops, allowing programmable logic controllers (PLCs) or safety relays to monitor contactor state continuously. Its enclosed flame-retardant housing is structured to withstand harsh industrial settings involving mechanical vibration, dust, and trace atmospheric contamination common in heavy manufacturing, water treatment, and chemical processing environments.
DL42N-22
DL42N-22
Dimensions, Mounting & Connection Notes
- Enclosure Protection: Built for protected indoor control cabinet installation (IP20 standard industrial enclosure class).
- Mounting Orientation: Designed for secure snap-on DIN-rail placement or screw mounting inside electrical enclosures.
- Terminals: Screw-type terminal blocks for secure connection of main power lines, motor leads, and control wiring.
- Arc Management: Integrated arc chambers isolate switching sparks to safeguard surrounding panel components.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Mounting Hardware | Standard industrial control cabinet panel or DIN-rail | Requires vertical or specified horizontal clearance for arc suppression and cooling. |
| Control System Interface | PLC digital output or control relay matching coil rating | Auxiliary contacts (2NO/2NC) allow direct feedback wiring back to control logic. |
| Overload Protection | Compatible thermal overload relay systems | Can be paired directly with thermal overload blocks for complete motor phase-loss and overload protection. |
| Interlocking Configurations | Mechanical and electrical interlock capability | Multiple units can be configured for reversing motor starter assemblies. |
FAQ
What is the ABB / Schiele DL42N-22?
It is a heavy-duty 3-pole industrial AC electromagnetic contactor utilized for switching motors, heaters, and automated industrial power loads.
What auxiliary contact arrangement does it feature?
It features a 2NO / 2NC (2 Normally Open, 2 Normally Closed) auxiliary contact block layout for status feedback and control interlocking.
How is the DL42N-22 mounted?
It is designed for standard DIN-rail or back-panel mounting inside industrial electrical control cabinets.
Can this contactor be used for motor reversing applications?
Yes, multiple DL42N-22 units can be implemented in forward-reverse motor control circuits utilizing proper mechanical and electrical interlocks.
Documented Performance Data
- Switching Mechanism: Electromagnetic plunger actuation with mechanical spring return.
- Arc Suppression: Integrated arc extinguishing chambers designed to handle repeated heavy load interruptions.
- Interlock Support: Supports auxiliary state tracking via integrated low-power switching contacts to prevent simultaneous conflicting states in multi-contactor setups.
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