NJR2-G · CABINET SYSTEM
NJR2-G turns the soft starter into a complete motor-control cabinet architecture.
The 2026 source describes NJR2-G cabinets built around soft starters and correctly sized contactors, with motor-control and protection functions packaged into the cabinet.
Published cabinet architectures
Choose the operating philosophy before cabinet dimensions or component sizes.
| Architecture | Purpose | Key source note |
|---|---|---|
| One-to-one | Standard single-motor soft-start cabinet | Soft starter plus matching contactor/control hardware |
| One-to-multiple | One soft starter sequentially starts multiple motors | Each motor transfers to its own bypass contactor after starting |
| One duty + one standby | One running motor with one automatic standby | Two soft starters; standby unit can take over after a fault |
| Two duty + one standby | Two running motors with one standby | Standby motor is brought in when one running unit fails |
Protection and system checks
The cabinet source lists overload, overcurrent, phase-loss, overvoltage and undervoltage functions.
- Number of motors and simultaneous-running requirement
- Motor kW/current and actual line voltage
- Start sequence and minimum time between starts
- Bypass contactor and intermediate-relay requirements
- Automatic duty/standby logic and fault handover
- Cabinet ventilation, dimensions and installation environment
Source reference
Internal database reference for engineering review.
2026 B11 compilation: NJR2-G cabinet section pages 2503–2514. B12 overview: page 45.