40 Amp Hybrid Relay - A Mercury Free Alternative

Carlo Gavazzi is proud to announce our new generation of economically friendly switching devices, the RMD Hybrid Relays. This product provides a mercury-free switching solution, ideal for controlling heating elements inside of food ovens, warmers, fryers, rotisseries and other food equipment. They are one of the few products of their type available on the market which is capable of switching up to 20 cycles per minute, with a 4 million electrical cycle life expectancy.

The RMD Series combines the benefits of solid state and electromechanical technology to provide a hybrid relay, which is an optimal solution. This means that there is virtually no contact arcing, which results in prolonged relay life and much less emissions inside of the panel. Another benefit of hybrid technology is a full amperage rating at elevated operational temperatures.

While most conventional switching devices are rated at 25°C or 40°C, the RMD Hybrid Relays are fully rated up to 60°C. The RMD3H switches heaters on three legs while the RMD2H is a lower cost alternative, as it switches two poles and the third pole is directly connected between L2 and T2. Some of the technical features include:
  • Two (for single and three phase circuits) and three pole arrangements
  • Rated for 4 million electrical cycles
  • Rated for up to 20 cycles per minute
  • Two output voltage ratings:
    • (674 bytes) 240VAC (VL-L)
    • (674 bytes) 277VAC (VL-N – 480VAC with Neutral)
  • Three common control voltages: 24VAC, 120VAC, 240VAC
  • Two amperage ratings:
    • (674 bytes) 30A up to 70°C
    • (674 bytes) 40A up to 60°C
  • Similar mounting to Mercury Displacement Contactors
  • Mercury-free, RoHS compliant, cRUus recognized

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more