Daikin-McQuay 349934050 Starter

The Daikin-McQuay 349934050 Starter is a precision-engineered manual motor starter designed for high-voltage HVACR applications requiring reliable thermal overload protection. Rated for a 600V maximum voltage and featuring an adjustable 6-10A current range, this component is essential for managing three-phase motor control in commercial air handling units and chillers. Replacing a 349934050 motor starter ensures consistent operation and prevents winding burnout during overcurrent events. This industrial motor controller utilizes a rugged toggle or rotary interface for positive switching action, providing a mechanical disconnect and short-circuit protection in a compact footprint. As an OEM McQuay replacement part, it guarantees fitment and electrical compatibility with legacy Daikin systems, adhering to strict NEMA and IEC standards. Field technicians should verify the Full Load Amps (FLA) on the motor nameplate to ensure the 6-10A setting provides the necessary trip curve protection for the specific HVAC compressor starter application.

• Adjustable 6-10A Trip Range: Allows for field-calibration to match the precise FLA of the motor, ensuring responsive thermal protection.
• 600V Rated Durability: Engineered to withstand high-voltage industrial transients common in 480V and 600V commercial power grids.
• Manual Reset Capability: Features a clear mechanical indication of trip status, facilitating faster troubleshooting for field contractors.
• OEM Standards: Built to original Daikin-McQuay specifications to ensure direct physical mounting and electrical terminal alignment.

Is the 349934050 suitable for single-phase or three-phase applications?
This manual starter is primarily designed for three-phase motor control, but can be used in single-phase applications by wiring the poles in series to ensure correct thermal sensing across the internal heaters.

Can I adjust the amperage setting after installation?
Yes, the secondary dial allows for adjustable current protection between the 6A and 10A threshold to fine-tune protection based on real-world load conditions.

What happens if the starter trips frequently?
Frequent tripping usually indicates an overcurrent condition, such as a failing bearing or a phase imbalance. Ensure the 6-10a manual starter dial is set according to the motor nameplate and check for mechanical resistance in the driven equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.