#### Totally Enclosed Fan Cooled - Electric Motors

-   The vendor will provide totally enclosed fan cooled electric
    induction motors that are labeled "NEMA Premium" or meet the latest
    Federal Energy Management Program (FEMP) designated performance
    levels[^1]. To find the latest performance levels, visit the FEMP
    Web site at
    [www.eere.energy.gov/femp/procurement/](http://www.eere.energy.gov/femp/procurement/)

-   As of March 2006, the FEMP performance requirement called for:

+------------+------------------+------------------+------------------+
| #          |                  |                  |                  |
| #### Perfo |                  |                  |                  |
| rmance Req |                  |                  |                  |
| uirement[^ |                  |                  |                  |
| 2] for Tot |                  |                  |                  |
| ally Enclo |                  |                  |                  |
| sed Fan Co |                  |                  |                  |
| oled Induc |                  |                  |                  |
| tion Motor |                  |                  |                  |
| s Rated 60 |                  |                  |                  |
| 0 volts or |                  |                  |                  |
|  Less (Ran |                  |                  |                  |
| dom Wound) |                  |                  |                  |
+------------+------------------+------------------+------------------+
| **Motor    | #####            |                  |                  |
| Size       | Nominal Full-Loa |                  |                  |
| (hor       | d Efficiency[^3] |                  |                  |
| sepower)** |                  |                  |                  |
+------------+------------------+------------------+------------------+
|            | **6-pole (1200   | **4-pole (1800   | **2-pole (3600   |
|            | rpm)**           | rpm)**           | rpm)**           |
+------------+------------------+------------------+------------------+
| **1**      | 82.5             | 85.5             | 77.0             |
+------------+------------------+------------------+------------------+
| **1.5**    | 87.5             | 86.5             | 84.0             |
+------------+------------------+------------------+------------------+
| **2**      | 88.5             | 86.5             | 85.5             |
+------------+------------------+------------------+------------------+
| **3**      | 89.5             | 89.5             | 86.5             |
+------------+------------------+------------------+------------------+
| **5**      | 89.5             | 89.5             | 88.5             |
+------------+------------------+------------------+------------------+
| **7.5**    | 91.0             | 91.7             | 89.5             |
+------------+------------------+------------------+------------------+
| **10**     | 91.0             | 91.7             | 90.2             |
+------------+------------------+------------------+------------------+
| **15**     | 91.7             | 92.4             | 91.0             |
+------------+------------------+------------------+------------------+
| **20**     | 91.7             | 93.0             | 91.0             |
+------------+------------------+------------------+------------------+
| **25**     | 93.0             | 93.6             | 91.7             |
+------------+------------------+------------------+------------------+
| **30**     | 93.0             | 93.6             | 91.7             |
+------------+------------------+------------------+------------------+
| **40**     | 94.1             | 94.1             | 92.4             |
+------------+------------------+------------------+------------------+
| **50**     | 94.1             | 94.5             | 93.0             |
+------------+------------------+------------------+------------------+
| **60**     | 94.5             | 95.0             | 93.6             |
+------------+------------------+------------------+------------------+
| **75**     | 94.5             | 95.4             | 93.6             |
+------------+------------------+------------------+------------------+
| **100**    | 95.0             | 95.4             | 94.1             |
+------------+------------------+------------------+------------------+
| **125**    | 95.0             | 95.4             | 95.0             |
+------------+------------------+------------------+------------------+
| **150**    | 95.8             | 95.8             | 95.0             |
+------------+------------------+------------------+------------------+
| **200**    | 95.8             | 96.2             | 95.4             |
+------------+------------------+------------------+------------------+
| **250**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| **300**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| **350**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| **400**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| **450**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| **500**    | 95.8             | 96.2             | 95.8             |
+------------+------------------+------------------+------------------+
| ##### Pe   |                  |                  |                  |
| rformance  |                  |                  |                  |
| Requiremen |                  |                  |                  |
| t for Tota |                  |                  |                  |
| lly Enclos |                  |                  |                  |
| ed Fan Coo |                  |                  |                  |
| led Induct |                  |                  |                  |
| ion Motors |                  |                  |                  |
|  Rated Med |                  |                  |                  |
| ium Voltag |                  |                  |                  |
| e -- 5 kV  |                  |                  |                  |
| or less (F |                  |                  |                  |
| orm Wound) |                  |                  |                  |
+------------+------------------+------------------+------------------+
| *          | 95.0             | 95.0             | 95.0             |
| *250-500** |                  |                  |                  |
+------------+------------------+------------------+------------------+

[^1]: Premium efficiency electric motors usually have higher inrush
    current than equivalent models. In older buildings, make sure
    existing circuits and protection equipment are adequate to handle
    this higher initial current, especially when replacing "Design B"
    with "Design A" motors.

[^2]: This recommendation applies to general-purpose, single speed,
    polyphase induction motors. Some applications require
    definite-purpose, special-purpose, special frame, or special mounted
    polyphase induction motors. A motor meeting this efficiency
    recommendation should be available for these other applications.

[^3]: Motor efficiency is identified on the nameplate by "nominal"
    efficiency, which represents the average efficiency of a large
    population of the same design. It is measured in accordance with
    NEMA MG 1-1998, *Motors and Generators*, and IEEE 112 Test Method B.