dolc4.0400 lovato direct on-line starter inc overload 400V 4kw 5.5hp 8.6amp

Why Choose the Lovato DOLC4.0400 Direct On-Line Starter?

The Lovato DOLC4.0400 is a robust and efficient direct on-line (DOL) motor starter designed for reliable starting and protection of three-phase electric motors in industrial applications. Manufactured by Lovato Electric, this enclosed starter combines motor switching and thermal overload protection within a durable IP65-rated insulated enclosure for dependable operation in demanding environments.

Part of the Lovato DOLC4 enclosed starter series, the DOLC4.0400 is engineered for industrial machinery, pumps, compressors, conveyors and automation systems requiring straightforward motor control and dependable protection. Its integrated overload relay simplifies installation while helping improve motor reliability and reduce maintenance downtime.

Supporting motors up to 4 kW with a 400 V AC control voltage, the Lovato DOLC4.0400 offers a compact and practical motor starting solution for fixed-speed industrial applications where reliability, environmental protection and ease of installation are essential.

Key Advantages

• Compact direct on-line motor starter for industrial applications.
• 4 kW motor power capability suitable for machinery and automation systems.
• 400 V AC control voltage compatible with industrial power systems.
• Integrated overload relay improves motor protection and reliability.
• IP65 enclosure protection against dust and moisture ingress.
• Simple installation and dependable long-term operation.

Key Features

• Lovato DOLC4 enclosed DOL starter series.
• 4 kW rated motor power.
• 8.6 A motor current range.
• 400 V AC control supply.
• Integrated thermal overload protection included.
• Compact insulated polycarbonate enclosure.
• IP65-rated housing for industrial environments.
• Suitable for industrial and OEM motor control systems.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: DOLC4 Compact DOL Starters
• Model: DOLC4.0400
• Product type: Direct on-line motor starter
• Motor power: 4 kW
• Horsepower rating: 5.5 HP
• Motor current: approx. 8.6 A
• Control voltage: 400 V AC
• Input phases: 3-phase
• Number of poles: 4P
• Protection rating: IP65
• Enclosure material: Insulated polycarbonate
• Overload protection: Integrated thermal overload relay
• Dimensions (H × W × D): approx. 175 × 88 × 109 mm
• Standards: IEC/EN 60947-1, IEC/EN 60947-4-1
• Operating temperature: up to 55 °C

Reliable Motor Starting and Protection

Direct on-line starters such as the Lovato DOLC4.0400 provide efficient and reliable starting of three-phase motors by applying full supply voltage directly to the motor terminals. This proven method is widely used in fixed-speed industrial motor applications requiring simplicity and durability.

The integrated thermal overload relay helps protect motors against overcurrent and overheating conditions, helping reduce downtime and extend equipment lifespan. The IP65-rated enclosure provides additional environmental protection for installations exposed to dust and moisture.

Typical Applications

• Industrial pumps and water treatment systems.
• Compressors and refrigeration equipment.
• Conveyor and material handling systems.
• Ventilation and HVAC installations.
• Industrial processing machinery.
• OEM automation and motor control systems.

Trusted by Industrial Engineers Worldwide

Lovato enclosed direct on-line starters are trusted worldwide for dependable motor protection, compact installation and reliable operation across industrial automation and machinery applications.