The Totally Enclosed Cast Iron Premium Efficiency Motor is designed for industrial and commercial applications that require stable power output, mechanical durability, and compliance with efficiency standards. Compared with motors using open or aluminum housings within the same category, this motor adopts a cast iron frame and a totally enclosed fan-cooled (TEFC) structure, which helps limit the influence of dust, moisture, and airborne contaminants during operation. The motor follows NEMA Design B characteristics, making it suitable for general-purpose loads with predictable starting and running performance.
This motor is available in a power range from 1HP to 10HP and supports multiple pole configurations, including 2-pole, 4-pole, and 6-pole options, allowing adaptation to different speed requirements. With a service factor of 1.15 and Class F insulation approved by UL, it is engineered to operate within defined thermal and electrical limits. The enclosure rating of IP44 and compliance with EPACT (CC) and EEV efficiency certifications make it suitable for installations where regulatory conformity and long-term operational stability are required.
| Item | Cast Iron TEFC Motor | Aluminum Housing Motor | Open Drip Proof Motor |
|---|---|---|---|
| Enclosure Type | TEFC | TEFC | ODP |
| Housing Material | Cast Iron | Aluminum | Steel/Aluminum |
| Environmental Protection | IP44 | Typically IP23–IP44 | Limited |
| Structural Rigidity | High | Medium | Medium |
| Typical Application Area | Industrial | Light industrial | Clean indoor areas |
| Efficiency Certification | EPACT / EEV | May vary | Limited |
Q1: What does TEFC mean in this motor?
A: TEFC stands for Totally Enclosed Fan Cooled, indicating that the motor enclosure prevents direct air exchange with the environment while an external fan provides cooling.
Q2: What is the advantage of a cast iron frame?
A: A cast iron frame provides higher mechanical strength and stability compared to lighter materials, which is suitable for industrial operating conditions.
Q3: Can this motor be used with C-Face mounting?
A: Yes, the motor is designed to accept a C-Face kit for compatible mounting configurations.
Q4: What type of loads is NEMA Design B suitable for?
A: NEMA Design B motors are commonly used for general-purpose applications with moderate starting torque and controlled starting current.
Q5: Is this motor compliant with efficiency regulations?
A: Yes, it meets EPACT (CC) and EEV efficiency certification requirements and holds UL, CSA, and CUS approvals.