Description

The EF146-150 electronic overload relay ensures fast and dependable protection for electric motors without the need for an external supply. Designed for industrial applications, it combines accuracy, versatility, and ease of use—featuring adjustable trip classes, automatic or manual reset, and robust thermal performance. It can be integrated seamlessly with contactors in standard motor control systems and is certified for ATEX and IECEx environments. For extended configurations and related system design, explore our integrated power and control solutions.

Key Specifications

• Model: EF146-150

• Type: Electronic Overload Relay

• Supply Type: Self-supplied (no external power required)

• Trip Classes: Selectable 10E / 20E / 30E

• Contacts: 1 NC (trip), 1 NO (signal)

• Reset: Manual or automatic selectable

• Temperature Compensation: Integrated

• Certifications: ATEX, IECEx

• Operating Temperature Range: Extended industrial range

• Compatibility: EF65, EF96, EF146 series contactors

Highlights

• Fast and precise motor protection against overload and phase loss

• Wide setting range and stable trip performance

• Simple installation and direct connection to contactors

• STOP and TEST functions for maintenance safety

• Trip-free mechanism ensures secure operation

Typical Uses

• Industrial motor protection circuits

• Process automation systems

• HVAC and pumping equipment

• Hazardous area motor installations

Installation & Support

Delivered pre-configured for quick setup with standard motor control systems.
ARC Technologies provides technical support, configuration guidance, and maintenance assistance for all electronic overload relay products.