Mars mars-10858 Ecm Constant Torque Motor 1/2 Hp 115/230V

Product Description

The MARS mars-10858 AZURE Wireless is an ECM constant torque replacement motor rated for multi-horsepower operation from 1/5 to 1/2 HP at 115/230 volts single phase. It operates on 50/60 Hz power and delivers five selectable speeds with bidirectional rotation (reversible forward and reverse), making it adaptable across a wide range of air handler and fan coil configurations. The motor uses ball bearings, a belly band mount, and Class B insulation rated to 55 degrees C ambient. Redundant electronic thermal protection circuits are built in. No external capacitor is required. Licensed HVAC technicians and mechanical contractors install this motor as a direct-drive ECM replacement.

The mars-10858 is suited for residential and light commercial HVAC applications where a failed or inefficient PSC or earlier-generation ECM motor needs to be replaced with a constant torque ECM unit. The AZURE Wireless designation supports wireless commissioning and speed configuration without additional hardware in compatible setups. Typical installations include air handlers, fan coils, and furnace blower assemblies requiring a NEMA 48 frame belly band mounted motor. This motor replaces X13, Ensite, and Endura motor platforms.

Key Features

• ECM constant torque design with five selectable speeds for variable airflow control
• Multi-rated 1/5 to 1/2 HP covers a broad range of replacement applications
• Dual voltage 115/230V operation on a single unit reduces stocking requirements
• AZURE Wireless capability supports wireless speed configuration on compatible systems
• Redundant electronic thermal protection circuits for enhanced reliability
• Bidirectional rotation (forward and reverse) ships configurable in the field
• No capacitor required simplifies installation

Compatibility

Designed as a direct replacement for X13, Ensite, and Endura platform ECM motors in residential and light commercial HVAC equipment. Consult the AZURE Wireless setup documentation to verify speed tap configuration before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the air handler or furnace before removing the existing motor. Verify supply voltage matches the motor wiring configuration before energizing. Confirm belly band mount dimensions and shaft diameter compatibility with the existing blower assembly before final installation.

Technical Specifications

• Motor Type: ECM
• Horsepower Range: 1/5 to 1/2 HP
• Maximum HP: 1/2 HP
• Voltage: 120/240V
• Phase: Single
• Full Load Amps: 6.4A at 120V / 3.8A at 240V
• Speeds: 5
• Frequency: 50/60 Hz
• Rotation: Reversible (forward and reverse)
• RPM Type: Constant Torque
• NEMA Frame: 48
• Enclosure: OAO (Open Air Over)
• Mount Type: Belly Band
• Bearing Type: Ball
• Shaft Length: 4.94 inches
• Shaft Diameter: 1/2 inch
• Thermal Protection: Redundant Electronic Control Circuits
• Insulation Class: B
• Ambient Temperature Rating: 55 degrees C
• Capacitor Required: No
• Standards: CUL
• Length: 14.60 inches
• Width: 6.90 inches
• Height: 7.50 inches
• Weight: 11.30 pounds
• Country of Origin: China

Standard Information

• Brand: MARS
• Manufacturer Part Number: mars-10858