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Phone: +86 16626708626Description
Product Introduction & Positioning
The RXTUG is a heavy-duty, rotary disconnect switch, part of the renowned Allen-Bradley Bulletin 1494 family. It functions as a manual motor controller and a local disconnecting means for electrical circuits. This device is designed to be installed in control panels, on machine walls, or in motor control centers to provide a visible break in the power circuit. Its core purpose is safety and control, allowing operators to manually start and stop equipment or for maintenance staff to isolate it completely. For panel builders, system integrators, and plant engineers, the value of the RXTUG lies in its simplicity, ruggedness, and compliance with international safety standards. It provides a clearly identifiable and operable disconnection point that meets the requirements for a “local disconnect,” simplifying system design and ensuring that safety is physically built into the machine’s architecture, rather than being an afterthought.
Key Technical Features & Functional Benefits
The RXTUG is engineered for durability, safety, and ease of use in demanding industrial environments. A primary feature is its robust switching mechanism, which provides a quick-make, quick-break action that is independent of the operator’s handle speed. This ensures consistent arc interruption and long electrical life, even under full load conditions. The switch is housed in a high-strength, thermoplastic enclosure that offers strong dielectric properties and high impact resistance, protecting the internal components from physical damage and environmental contaminants. The handle mechanism is designed for padlocking in the OFF position with up to three padlocks, a critical feature for enforcing team-based lockout/tagout procedures and ensuring no one can accidentally re-energize the circuit while work is being performed.
From a functional and integration standpoint, the RXTUG offers significant flexibility. It is available in a range of current ratings and fuse types, allowing it to be precisely matched to the motor or load it is protecting. The visible blade design provides a clear, unambiguous indication of the contact position—ON or OFF—giving personnel visual confirmation of the circuit status. The unit is also designed for easy wiring with standard box lugs and ample wiring space, reducing installation time. This combination of a rugged mechanical design, clear safety status indication, and compliance with global standards makes the RXTUG a trusted and fundamental component for embedding safety directly into industrial control systems.
- RXTUG
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Model Series | RXTUG |
| Brand | Allen-Bradley / Rockwell Automation |
| Type | Rotary Disconnect Switch |
| Voltage Rating | 600V AC Maximum |
| Current Rating | 30 Amperes (Standard for this frame) |
| Horsepower Rating | 10 HP @ 240V AC, 20 HP @ 480V AC |
| Operating Temperature | -20 to 60 °C (-4 to 140 °F) |
| Mounting | Panel Mount |
| Enclosure Type | NEMA 1 (Indoor), NEMA 3R (Weather-Resistant options) |
| Fuse Classification | Class J, R, or CC (depending on configuration) |
| Electrical Life | 25,000 operations at rated current |
| Certifications | UL 508, CSA C22.2, CE |
| Handle Position | Padlockable in OFF position |
Related Modules or Compatible Units
1494V-N – A variety of fuse kits designed to be installed directly into the RXTUG switch base.
1494H-Q30 – A 30-amp rotary handle and operator mechanism kit.
1494R-N – A range of replacement contact cartridges for the disconnect switch.
Bulletin 500 – A line of motor starters often controlled by the RXTUG disconnect switch.
Bulletin 140M – A motor protection circuit breaker that can serve a similar function with integrated overload protection.
Installation Notes & Maintenance Best Practices
Correct installation of the RXTUG is crucial for both safety and performance. The switch must be mounted on a flat, sturdy surface, ensuring the operating handle has full and unobstructed travel. It is critical to follow the manufacturer’s torque specifications for all power terminal connections to prevent overheating and ensure a reliable, low-resistance connection. When installing fuses, always ensure they are the correct class and amp rating as specified for the load and the switch’s rating. The enclosure door should be interlocked so that it cannot be opened unless the handle is in the “OFF” position, preventing access to live parts. Always use the provided hardware for mounting to maintain the integrity of the enclosure’s safety rating.
Maintenance for the RXTUG is straightforward but essential. The primary task is a periodic visual inspection. Check for any signs of physical damage to the enclosure, cracking, or discoloration that could indicate overheating at the terminals. With the power safely locked out and verified de-energized, inspect the contact blades for signs of excessive arcing or pitting. Operate the handle mechanism to ensure it moves smoothly and positively between the ON and OFF positions without binding. It is good practice to periodically retorque the power connections during scheduled downtime to maintain electrical integrity. Keeping the operating handle and surrounding area clear of obstructions and debris is a simple but effective practice for ensuring reliable operation.
