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Littelfuse.com

© 2022 Littelfuse, Inc.

081122-A

Description

The DCNLM Series 48V High-Current DC Contactor Relay

is available up to 400A contact switching capability as well

as multiple coil voltage options to suit a wide variety of

applications, including use in electrical control systems for

communication power supplies, industrial machines, and

uninterruptible power supplies (UPS).

The DCNLM normally open, high-current DC contactor

features 48V non-polarized main contacts and is available

in single-coil and double-coil configurations.

Web Resources

Download 2D print, installation guide and technical

resources at: littelfuse.com/DCNLM

Applications

• Communication Power Supplies

• UPS

Features and Benefits

• Available up to 400A contact switching capability

• Main contacts are rated for 48V (typical) and 60V (max)

• Coil voltage options include 12V, 24V, 48V, and 60V

• Available in single-coil and double-coil configurations

• Normally open, monostable relay design

• Non-polarized main contacts

DCNLM SERIES

60V DC MAX CONTACTOR RELAY

DCNLM50

Specifications

Max Voltage Rating (V DC):

60

Current Rating Continuous (A):  50, 100, 200, 400

Coil Voltage Rating (V DC): 

12, 24, 48, 60

Ingress Protection: 

IP 40

Operating Temperature (°C): 

-40ºC to +70ºC

Approvals: 

400A have CCC, UL

Electrical Diagram

K

DCNLM50NBxx

DCNLM200NBxx-01

DCNLM200NB24-02

DCNLM400NBxx

DCNLM200

DCNLM100

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2

K1

K2

DCNLM100NBxx-01

DCNLM200NB12xx

DCNLM400NB12

DCNLM400NB24-01

DCNLM400NB48-01