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BMEP581020 SCHNEIDER

Brand: Schneider

Model number: BMEP581020 

Colour:new                  

Warranty: 12 months

Lead Time:3-day working day   

Country of origin: USA Price: Please contact us         

Product weight:0.40kg

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

BMEP581020   SCHNEIDER

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Products Name: BMEP581020 SCHNEIDER

PRODUCT DESCRIPTION

When setting the relay characteristic/torque angle for the three phase directional overcurrent element, a positive angle setting was specified. This was due to the fact that we consider as polarising voltage, the phase voltage value in quadrature of the current under fault conditions. With directional earth fault protection, the residual current under fault conditions lies at an angle lagging the polarising residual earth fault voltage.

Description:

General

All tables are based on the operation of the motor 

and controller in the same ambient temperature, 

40°C (104°F) or less. Always be certain the 

correct thermal units are installed in the starter 

before operating the motor. Each thermal unit 

shall be installed such that its catalog number is 

visible. On melting alloy thermal units the ratchet 

wheel must engage the pawl assembly.

Selection Procedure

1. Determine motor data:

a. Full load current rating

b. Service factor

NOTE: If motor full load current is not known, a 

tentative thermal unit selection could be made, 

based on horsepower and voltage. Refer to 

Page 22.

2. Motor and controller in same ambient 

temperature:

a. All starter classes, except Class 8198:

1. For 1.15 to 1.25 service factor motors use 

100% of motor full load current for thermal 

unit selection.

2. For 1.0 service factor motors use 90% of 

motor full load current for thermal unit 

selection.

b. Class 8198 only:

1. For 1.0 service factor motors use 100% of 

motor full load current for thermal unit 

selection.

2. For 1.15 to 1.25 service factor motors use 

110% of motor full load current for thermal 

unit selection.

3. Motor and controller in different ambient 

temperatures:

a. Multiply motor full load current by the 

multiplier in Table A. Use the resultant full 

load current for thermal unit selection.

4. Locate proper selection table from index, 

Pages 19 and 20.

a. The proper thermal unit number will be found 

adjacent, to the right of the range of full load 

currents in which the motor full load current 

or resultant full load current falls.

5. See Page 21 for calculation of trip current rating.


140CHS32000   SCHNEIDER

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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