Bulletin M-2.1

General Description:

Ordering Instructions:

* Machine Type Transformer

* Order by model number shown

* Stacked Core

* Add "X" to model number if transformer is to be fully potted

* Frame Cross Section 10 3/4" X 13 3/8"

* Specify "primary conduit opening" or "primary cable clamp

block" ("primary conduit opening" furnished standard)

KVA Rating

Secondary

No. of

Tap Switch

RWMA

Model Number

Weight

Dwg.

Frame

Turns Ratio 440 Volt

110 C Rise

Voltage

Taps

Location

Pad Size

220V/60 Hz

440V/60 Hz

Approx.

No.

Letter

Tap 1

Tap 2

Tap 3

Tap 4

Tap 5

Tap 6

Tap 7

Tap 8

1

M226100ML1BML

M446100ML1BML

420

End Mount

2

M226100ML1BNL

M446100ML1BNL

423

R1471

100

5.5 to 10.0

8

3

M226100ML1BOL

M446100ML1BOL

427

ML

80:1

74:1

68:1

62:1

57:1

52:1

48:1

44:1

Volts

1

M226100ML1FML

M446100ML1FML

440

Side Mount

2

M226100ML1FNL

M446100ML1FNL

443

R1472

3

M226100ML1FOL

M446100ML1FOL

447

1

M226125MA1BML

M446125MA1BML

490

End Mount

2

M226125MA1BNL

M446125MA1BNL

493

R1471

125

6.6 to 12.2

8

3

M226125MA1BOL

M446125MA1BOL

501

MA

66:1

60:1

55:1

50:1

46:1

42:1

39:1

36:1

Volts

1

M226125MA1FML

M446125MA1FML

510

Side Mount

2

M226125MA1FNL

M446125MA1FNL

513

R1472

3

M226125MA1FOL

M446125MA1FOL

517

Standard Features:

Optional Features:

* Class "F" insulation

* Voltages and frequencies other than shown available on request

* Solderless lug connections for primary wiring

* Thermostats

* Secondary pad sizes and hole spacings to RWMA

* Special secondary pad sizes available on request

standard

* Remote tap switch

* Secondary end positively sealed against

contimination