PLCs, Power Supplies & Others

Thermal Management Function

This fan assembly module delivers active cooling for power electronics and control cabinets. It prevents overheating in variable speed drives and rectifier assemblies during continuous operation. You can deploy this unit in motor control centers with high thermal loads. It extracts hot air from the enclosure and replaces it with ambient temperature air. The module maintains internal cabinet temperatures within safe operational limits consistently. This thermal regulation significantly reduces component failure rates over time.

Physical Dimensions and Mounting Provisions

The Reliance Electric 45C336 measures 162.4 mm in height and 162.4 mm in width. Its depth reaches 86.2 mm from the inlet grille to the outlet flange. This assembly weighs approximately 1.48 kg, requiring careful handling during installation. You can mount the unit using four M6 screws into the pre-tapped corner holes. Alternatively, you may use the included bracket kit for vertical panel mounting. The cast aluminum housing combines mechanical strength with efficient heat conduction properties.

Motor Design and Bearing Configuration

This assembly incorporates a brushless DC motor with a nominal speed of 3,600 RPM. The motor uses two high-precision ball bearings with a sealed lubrication system. These bearings operate with a noise emission of only 46 dBA under load. The Reliance Electric 45C336 consumes 420 mA from a 24 VDC power source. An integrated Hall sensor generates a pulse train for external speed verification. This feedback allows the host controller to detect fan degradation early.

Airflow Characteristics and Pressure Capabilities

This fan produces 118 CFM of airflow under free delivery conditions. It achieves a static pressure rating of 105 Pa against system impedances. The impeller features nine forward-curved blades for enhanced aerodynamic efficiency. You can orient this assembly in horizontal or vertical positions without performance loss. The airflow pattern moves from the intake side to the exhaust side uniformly. This design aligns with standard cabinet cooling requirements for industrial enclosures.

Electrical Wiring and Connector Details

A 2.5-meter flying lead terminates with a 6-pin AMP connector for secure power attachment. The lead uses 16 AWG stranded wire for flexibility and reduced voltage drop. You will also find a dedicated 3-pin connector for the tachometer and alarm outputs. These outputs provide both speed feedback and fault indication signals. The Reliance Electric 45C336 includes an automatic restart feature after power recovery. This feature eliminates the need for manual intervention following temporary outages.

Component Architecture and Materials

The motor assembly uses 24 gauge copper windings around a laminated silicon steel core. You will find a four-pole ferrite magnet rotor with balanced construction. The drive PCB contains six IGBTs for commutation and a dedicated PWM controller. A thermal cutout switch trips at 100°C to prevent winding insulation damage. The unit also incorporates an EMI suppression filter for compliance with industrial standards.

Environmental Specifications and Certifications

The Reliance Electric 45C336 operates effectively from -20°C to 75°C ambient. It tolerates non-condensing humidity from 5% to 95% across the full range. The enclosure carries an IP55 rating for protection against dust and low-pressure water jets. Vibration endurance reaches 3 G from 10 Hz to 500 Hz per axis. Shock survivability measures 15 G for 11 milliseconds half-sine pulses. These credentials make it suitable for offshore and heavy industrial environments.

Technical Data Summary

Diagnostic Features and Service Indicators

This assembly includes a bi-color LED for immediate operational status feedback. The LED displays green during normal operation and red during fault conditions. You can access a maintenance timer that counts accumulated operating hours. This timer helps schedule preventive maintenance and filter replacement intervals. The expected operational lifespan reaches 60,000 hours at 25°C ambient.

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