Eaton DILER-40 24V 50Hz Control Relay, 4 NO Contacts, 4-Pole, DIN Rail 010094

Industrial electricians and panel builders often need a compact, reliable relay for switching auxiliary circuits in motor control applications. The Eaton DILER-40 control relay is a 4-pole device with 4 normally open contacts, designed for 24 V AC coil operation at 50 Hz. It is commonly used in control cabinets, machine tools, and conveyor systems where dependable switching of contactors, solenoids, or signaling devices is required.

Key specifications

• Product type: Control relay
• Number of poles: 4
• Contact configuration: 4 NO (normally open)
• Coil voltage: 24 V AC, 50 Hz
• Rated operational current (AC-15, 230 V): 4 A
• Rated operational current (AC-1, 230 V): 22 A
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Mounting: DIN rail or screw mounting
• Terminals: Screw terminals
• Protection degree: IP20
• Operating temperature range: -25 °C to +50 °C
• Electrical life (AC-15): 0.5 x 10⁶ operations
• Mechanical life: 10 x 10⁶ operations
• Standards: IEC/EN 60947, VDE 0660

Why choose it

The DILER-40 offers proven Eaton quality in a space-saving design. Its 4 NO contacts provide flexibility for various control tasks, and the wide operating temperature range ensures reliable performance in demanding industrial environments. With high electrical and mechanical endurance, it reduces maintenance and downtime. The relay is easy to install on standard DIN rails or with screws, making it a practical choice for both new installations and retrofits.

Ideal use cases

• Switching auxiliary circuits in motor starters and contactor combinations
• Controlling solenoids, valves, and small actuators in automated machinery
• Signal multiplication and isolation in control panels
• Use in HVAC systems, packaging machines, and material handling equipment

Good to know

The DILER-40 belongs to Eaton's DILER series, known for compatibility with a wide range of accessories such as auxiliary contact blocks and surge suppressors. The relay is designed to meet international safety standards, ensuring compliance in global applications. For optimal performance, ensure the coil voltage and frequency match your control circuit. Note that the protection degree is IP20, so it should be installed in an enclosure suitable for the environment.