HVAC Quick Disconnect Plugs, Receptacles and Connectors


Air Handling Units	Unit Heaters	Pumps	Portable Equipment

HVAC Disconnect
Plug flyer

Safest and Easiest Way to Deenergize HVAC Equipment

Workers are exposed to live parts and risk arc flash injury when opening and disconnecting standard blade type disconnect switches. Instead, to prevent accidents and simplify code compliance install UL/CSA switch rated plugs and receptacles from Meltric. They are a combination plug, receptacle and disconnect switch in one device. Meltric's receptacles/connectors feature a built-in switching function that ensures the contacts are safely deenergized before the plug can be withdrawn. Once withdrawn, the plug provides visual verification of deenergization. Arc flash safety is ensured and HVAC service work becomes safer and easier.

DECONTACTOR™Series HVAC Plugs, Receptacles & Connectors

	Switch ratings ensure safe load breaking/making – even in overload situations.
	Decontactors are switch rated up to 200A & 60 hp. They provide short circuit make & withstand protection up to 100kA.

	Safety shutter prevents exposure to live parts and arc flash hazards.
	The need for flash protection boundaries and cumbersome PPE is eliminated. Decontactors maintain a NFPA 70E 'hazard risk category' equal to zero.

	Separation of the plug & receptacle provides verification of deenergization.
	Voltage testing is not required. Visible contact separation proves the power is off.

	Plug & play simplicity allows any qualified employee to quickly connect and disconnect generators and other electrical equipment.
	Specially trained electrical workers are not required for load making/breaking. Downtime related to equipment change-outs can be reduced by up to 50%.

	Lockout provisions facilitate easy compliance with lockout/tagout requirements.
	Only your lock and tag are needed, no additional mechanisms are required. (Provisions are standard on the plug and optional on the receptacle.)

	NEC, UL & CSA Compliance
	In addition to their electrical plug & receptacle listings, Meltric Decontactor Series plugs & receptacles are UL and CSA switch rated and are approved NEC 'line of sight' disconnect switches for both resistive and inductive loads.

	UL/CSA listed for 'Branch Circuit Disconnect Switching' and 'Motor Circuit Disconnect Switching' per UL Subject 2682 'Switch Rated Plugs & Receptacles.'

Case Study

Rooftop Exhaust Fan Connections at Lab Facility
Many facilities have rooftop exhaust fans that require service, sometimes at the most inconvenient time. The NFPA 70E Standard for Electrical Safety in the Workplace requires the establishment of an electrically safe work condition at the fan before the service work is initiated. This includes properly interrupting the load current, visually verifying that all blades of the disconnecting device are open, and applying lockout/tagout devices. Due to the potential exposure to live parts and arc flash during exhaust fan service work, an electrician must first deenergize the fan. Voltage testing is usually required to verify deenergization and since it potentially exposes workers to live parts, NFPA 70E requires workers to wear appropriate PPE.
	"With the Meltric connector installed there is no need to physically mount a disconnect within sight for smaller motors on the roof so this is a good solution for us", said Monique Newell, a maintenance specialist at Scientific Protein Laboratories (SPL).
A better alternative to hardwired disconnect switches is Meltric's DECONTACTOR™ Series switch rated plugs and receptacles which are used to connect power to electrical equipment. With Decontactors installed, a technician can quickly and safely disconnect, repair or replace, and then reconnect exhaust fan motors. There is no need to climb up and down ladders to turn off remote disconnect switches, instead Decontactors are used to switch off the fan. And there is no need to wear cumbersome PPE while deenergizing because the safety shutter on the receptacle prevents access to live parts and once the plug and receptacle are disconnected, they provide visual proof of equipment deenergization.