Baldor MN806 Control Transformers, Bypass Contactors, Cross Over Chart, Example #1 Example #2

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K Control Transformers

Control Transformers are locally available. Baldor stocks simular transformers byt may require panel modification to fit.

L Bypass Contactors

The bypass used for G and R controls have varied during the years. Currently Baldor is using ASEA or ABB contactors which were used for several years of production of the G, R and M controls. The ASEA/ABB contactors are normally stocked by Baldor. If the contactor is not a ASEA/ABB Baldor does not stock replacements. A replacement should be found locally.

Cross Over Chart

To convert an Old Style General Purpose, Ramp Up/Down, or Non UL Style Multipurpose, use the chart below. The last digits remain the same. The Multipurpose Soft Starter will be in a larger enclosure than the old control.

SIZE

GENERAL

RAMP

NON UL

UL

PURPOSE

UP/DOWN

MULTIPURPOSE

MULTIPURPOSE

 

0

G70**

R70**

MA7A**

MA7-008-**

1

G71**

R71**

MA7B**

MA7-016-**

2

G72**

R72**

MA7C**

MA7-030-**

3

G73**

R73**

MA7D**

MB7-055-**

 

 

 

MB7E**

MB7-080-**

4

G74**

R74**

MB7F**

MB7-160-**

5

G75**

R75**

MB7G**

MB7-250-**

6

G76**

R76**

MB7H**

MB7-420-**

7

G77**

R77**

MB7J**

MB7-840-**

 

 

 

 

 

** These digits remain the same.

 

Example #1:

Example #2:

General Purpose

Non UL

Starter G76AB is

Multipurpose Starter

now MB7-420-AB.

MA7BAP is now

 

MA7-016-AP.

G-5

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Contents Solid State Starter Parts Table of Contents New Style Old StyleFuses Replacement SCRs/Diode and power cellsOld Style Non UL Spare Parts Size 0, 1 Size 3, 4 Braking Module Control TransformerLine Load Terminals Thermostat SCR/Power CellsPart Numbering Module LCM MOV-All SizesIII Nema 3R CT1 CT2 Size Size 0 Size 4, 5, 6Sizes Part Number CT2 Control Type Power Cell Replacement SCR AMP NON UL MAX SizeCAT. no Size General Ramp NON UL Purpose UP/DOWN Multipurpose Cross Over ChartControl Transformers Bypass ContactorsSize General Ramp NON UL Purpose UP/DOWN Multipurpose