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Littelfuse.com

© 2022 Littelfuse, Inc.

081122-A

Application Notes & Definitions

• Be sure to use a washer to prevent screws from loosening.Tighten the screw so that the torque

is in the range specified below. Exceeding the maximum torque can lead to product rupture.

See chart below.

• Please refer to the drawing for connection polarity.

• Do not use dropped products.

• Avoid installing the product in a strong magnetic field (Close to the transformer or magnet), or

near an object with heat radiation.

• Electrical life

Please use under load capability and life cycle so as not to cause a function failure. (Please also

treat the contactor as a product with specified life and replace it when necessary). It is possible

to make parts burn around the contactor once operating failure happens. So it is necessary to

take layout into account to make sure power shall be cut off within 1 second.

• Do not let particle and oil stain on the main terminal with which the load shall make a reliable

contact or it will cause a lot of heat.

PRODUCT

SERIES

PRODUCT MODEL

CONTACT TERMINAL

COIL TERMINAL

MOUNTING

HOLE OR BOLT

REFERENCE TORQUE

HOLE/BOLT/WIRE/TERMINAL

REFERENCE TORQUE

REFERENCE TORQUE

DCNLM50NB

DCNLM50NB12

DCNLM50NB24

DCNLM50NB48

DCNLM50NB60

Bolt : M5

4~5N.m

Bolt : M4

1.7~2.5N.m

1.7~2.5N.m

DCNLM100NB

DCNLM100NB12-01

DCNLM100NB24-01

DCNLM100NB48-01

Bolt : M6

4~6N.m

Bolt : M4

1.7~2.5N.m

1.7~2.5N.m

DCNLM200NB

DCNLM200NB12

DCNLM200NB24

DCNLM200NB48

Bolt : M8

9~11N.m

Bolt : M4

1.7~2.5N.m

4~5N.m

DCNLM200NB12-01

DCNLM200NB24-01

DCNLM200NB48-01

DCNLM200NB24-02

Bolt : M8

9~11N.m

Wire

-

4~5N.m

DCNLM400NB

DCNLM400NB24

DCNLM400NB48

Bolt : M10

15~18N.m

Bolt : M4

1.7~2.5N.m

6~8N.m

DCNLM400NB12

DCNLM400NB24-01

DCNLM SERIES

60V DC MAX CONTACTOR RELAY