• Tank truck and railcar loading facilities
• Drum and barrel filling sites
• Loading of stationary tanks

• Clamp is tethered to the cable by a stainless steel strap that protects the connection from strain and wear
• Pull-out resistant cord grip on junction box holds cable tighter the harder it is pulled
• Junction box creates convenient service point for hazardous location installations
• Coiled cable provides compact storage
• Strong clamping force penetrates grime and remains connected during loading process
• Provides ground and a ground-verification signal in a single clamp

Installation must be completed by a qualified professional. A540-Series ground clamps are suitable for installation and use in ordinary and specific hazardous locations as defined by NEC NFPA70 and IECEx standard 60079.

Includes high-durability cable and junction box

• 1. Verify process controller is powered on and idle.
• 2. Test the controller’s operation by clamping to a known grounded piece of metal. Verify the controller’s indicator changes from RED to GREEN. Remove the clamp from the test point.
• 3. Before any other electrical connections are made, secure the A540 clamp to the process connection that is to be loaded.
• 4. Verify the process controller’s indicator changes from RED to GREEN.
• 5. Complete any other process connections.
• 6. Once all other safety measures are active, begin the loading process.
• 7. Once loading is complete, remove all other process connections, then the A540 last.
• 8. Return the A540 clamp to the isolated storage facility, verifying the indicator remains red

• Ingress protection: weatherproof, raintight, and dust tight
• Conduit entries: one 3/4” trade size hole and a factory-installed cable on the bottom
• Suitable for installation in hazardous locations: Class I, Division 1 & 2, Groups B, C, and D hazardous locations, Class II, Division 1 & 2, Groups E, F, and G hazardous locations and Class III hazardous locations
• Suitable for connection to hazardous locations: Class I, Division 1 & 2, Groups A, B, C, and D hazardous locations and Class I, Zone 0, 1 & 2, Groups IIC, IIB, and IIA hazardous locations
• Recommended wire between controller and the clamp: 18 GA stranded copper wire (THHN)
• Extended working length of cable: 30 feet