Robertshaw 6000-109 Vibra Switch

The Robertshaw 6000-109 Vibra Switch is a high-performance explosion-proof vibration switch engineered to protect critical rotating and reciprocating machinery from catastrophic mechanical failure. This DPDT vibration detector features a 117VAC/DC reset coil and is housed in a rugged aluminum enclosure rated for Class I, Groups B, C, and D, and Class II, Groups E, F, and G hazardous locations. Built for industrial motor protection, it operates on a range of 0 to 4.5G with a continuous adjustment mechanism, providing an accuracy of +/- 5% for frequencies up to 300 Hz. Standard Robertshaw 6000 series internal components ensure reliable shutdown of fans, pumps, and compressors when set vibration thresholds are exceeded. This magnetic vibration switch supports both manual and remote electrical resets, making it a staple for contractors managing heavy-duty HVACR and industrial equipment where arc-suppression and hazardous area compliance are non-negotiable.

Key Benefits

• Hazardous Area Certified: Fully explosion-proof housing meets strict Class I and Class II safety standards for volatile environments.
• Versatile Reset Options: Integrated 117V AC/DC coil allows for remote electrical resets or manual on-site intervention.
• Reliable DPDT Switching: Double-Pole Double-Throw configuration enables simultaneous equipment shutdown and remote alarm activation.
• Precision Detection: Adjustable sensitivity from 0 to 4.5G compensates for normal operating harmonics while identifying damaging imbalances.
• Heavy-Duty Construction: The cast aluminum NEMA-rated enclosure provides extreme durability against environmental stressors.

Common Questions

What is the maximum current rating for the 6000-109 contacts?
The DPDT contacts are rated for 7 Amps at 460V AC (non-inductive) and up to 0.5 Amps at 120V DC for resistive loads.

Can this unit be mounted in any orientation?
While versatile, the trip point can vary slightly based on mounting orientation relative to gravity. It is recommended to calibrate the "zero vibration point" after secure installation on the equipment.

Does this switch require a separate rainshield?
The explosion-proof housing is highly resilient, but for unsheltered outdoor installations, a Robertshaw 6090 series rainshield is often utilized to prevent moisture accumulation near the conduit entries.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.