Eti-Polam MS18-13-18A 3-Pole Motor Circuit Breaker 7.5kW 13-18A

The Eti-Polam MS18-13-18A is a robust 3-pole motor circuit breaker engineered to provide comprehensive protection for electric motors in various electrical installations. This device is specifically designed to safeguard motors against thermal overloads and short-circuit faults, ensuring consistent performance and preventing damage to critical industrial equipment. With a power rating of 7.5kW and a precise adjustable thermal release range of 13-18A, it offers the flexibility required for diverse motor control setups.

Advantages

This motor circuit breaker stands out due to its reliable protection mechanisms that effectively prevent motor burnout caused by excessive current draw. Its compact design allows for efficient space utilization within control panels and switchgear cabinets. The adjustable thermal release feature provides users with the ability to fine-tune the protection settings to match the specific requirements of the connected motor, thereby enhancing operational safety and extending the service life of the machinery.

Suitable for

• Industrial motor control systems
• Commercial ventilation and pumping equipment
• Conveyor belt motor protection
• General machinery automation

When it may not be suitable

This device is not intended for use in circuits exceeding its specified power rating of 7.5kW or outside the thermal release range of 13-18A. It is also not suitable for applications requiring specialized protection against ground faults or specific hazardous environment certifications unless housed in an appropriate enclosure.

Key specifications

• Number of poles: 3
• Power rating: 7.5kW
• Thermal release adjustment range: 13-18A
• Protection type: Overload and short-circuit

How to use

The device should be installed by a qualified professional within a suitable electrical enclosure. After mounting the unit onto a standard DIN rail, connect the power supply lines to the input terminals and the motor cables to the output terminals. Once installed, use the adjustment dial on the front of the unit to set the thermal release current according to the nominal current rating of the motor being protected. Ensure all connections are tightened to the manufacturer's specified torque settings before energizing the circuit.

What to consider before purchase

• Verify the nominal current of your motor falls within the 13-18A range.
• Ensure the power rating of 7.5kW is compatible with your application.
• Check the available space in your control cabinet for mounting.
• Confirm that the environmental conditions meet the device's operational requirements.

Usage recommendations

Regularly inspect the circuit breaker for signs of wear or thermal damage. Periodically test the manual switching mechanism to ensure smooth operation, and always verify that the thermal release setting remains correctly calibrated to the motor's current requirements after any maintenance or system changes.