Overview
The Allen-Bradley 194R-NJ100P3 is an IEC-compliant fused rotary disconnect switch engineered for safe power isolation in industrial control applications. This disconnect switch plays a critical role in isolating electrical circuits, providing a reliable means to disconnect power for maintenance and safety purposes. The unit is rated for 100 AMP, 3 POLE, 3 PHASE operation at 600 VAC / 250 VDC with an open style configuration. This legacy model is discontinued by the manufacturer but remains widely deployed in existing industrial systems where isolation and protection are critical operational requirements.
Key Features
- 100A current rating suitable for high-load applications, ensuring reliable power management
- 600V AC voltage rating designed to handle voltage levels typical in industrial environments
- Heavy-duty thermoplastic enclosure offers durability and resistance to harsh environments
- 3-pole terminal configuration allows versatile installation options for 3-phase circuits
- Rotary handle design for intuitive manual operation and positive disconnect indication
- UL Class J and CC fuse-rated configuration provides coordinated protection with Class J fuses
Technical Specifications
| Electrical Ratings | |
| Current Rating | 100A continuous |
| Voltage Rating | 600 VAC / 250 VDC |
| Pole Configuration | 3-pole, 3-phase |
| Fuse Type | Class J and Class CC compatible |
| Mechanical & Physical | |
| Switch Type | Fused rotary disconnect, open style |
| Handle Type | Rotary handle |
| Enclosure Material | Thermoplastic |
| Weight | 9.50 lbs |
| Mounting | Panel mount |
| Terminal Type | Allen-type wrench terminals (4 mm) |
| Standards & Compliance | |
| Standards | IEC, UL Class J, UL Class CC, CSA HRCI-J |
| Series | 194R |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Part Number | 194R-NJ100P3 |
Typical Applications
- Machine tool control systems requiring main disconnect and lockout/tagout (LOTO) compliance
- Motor control centers (MCCs) and panel-mounted isolation switches
- Industrial process automation equipment requiring safe power cutoff for maintenance
- Factory automation systems where 3-phase 600VAC power distribution requires positive isolation
- Legacy system retrofits and replacement applications in existing facilities
Compatibility & Replacements
Compatible With
- Allen-Bradley 194R series disconnect switch enclosures and mounting hardware
- UL Class J and Class CC fuses (coordination verification required per circuit requirements)
- Standard 3-pole, 3-phase 600VAC control systems and motor control applications
- NEMA and IEC-compliant industrial control architectures
- Lockout/tagout (LOTO) compatible padlock applications on rotary handle
Replaces / Drop-In Replacement For
- 194R-J100-1753 (direct replacement for legacy 194R series)
- Earlier generation Allen-Bradley 194R rotary disconnect models in comparable amperage ratings
Works With
- Class J and Class CC fused protection systems
- IEC 947-3 compliant motor control circuits
- NEMA MG-1 motor control standards
- Standard 600VAC / 250VDC power distribution systems
- Industrial panel-mounted disconnect installations requiring manual isolation
