WEG CWBN1-11-30C03 NEMA Size 1 25A 3-Pole Contactor 24V DC Coil

The WEG CWBN1-11-30C03 is a NEMA Size 1, 25-amp, 3-pole magnetic contactor from WEG's CWBN series, featuring a 24V DC coil and built-in 1NO/1NC auxiliary contacts. Part of WEG's NEMA-rated contactor line, it's designed for contractors and engineers who specify equipment by NEMA size — giving you the familiar NEMA Size 1 rating in a modern, compact package that still meets both IEC 60947 and UL 508 standards.
 
The 24V DC coil makes this contactor ideal for applications where the control circuit is powered by a DC source — common in PLCs, automation systems, and battery-backed control panels. It's rated for inductive loads up to 25 HP at 460V in three-phase applications, handling motors, compressors, pumps, and similar industrial equipment without issue. All terminals including coil connections are front-facing for easy installation and troubleshooting, and the unit mounts on standard 35mm DIN rail or directly with screws.
 
Up to four additional front-mounted auxiliary contact blocks can be added as needed, and WEG thermal overload relays can be directly mounted to the load side for a compact, complete motor starter assembly. Accessories including auxiliary contact blocks are shared across the full CWB line from 2 to 50 HP at 460V, simplifying inventory and stocking requirements.
 
Key Specs:
NEMA Size: 1
Current Rating: 25A
Poles: 3 (3NO power poles)
Coil Voltage: 24V DC
Built-In Auxiliary Contacts: 1NO / 1NC
Max Load Voltage: 600V AC
HP Rating: 25 HP @ 460V (3-phase)
Mounting: DIN Rail or Screw Mount
Terminal Type: Screw
Terminal Access: Front-facing
Standards: IEC 60947, UL 508
Approvals: UL Listed, CSA Recognized