Relay Module provides multiple-zone control.
Press Release Summary:
Relay Control Module consists of 12 solid state relays (SSR) capable of switching up to 1,200 W each. Each SSR can control 240 Vac at 5 A at ambient temperature up to 30°C. Designed to interface with programmable logic controller, relays can be controlled by 15 to 32 V at 20 mA each. Relay circuits on board are protected by transient voltage suppressor on input side and by metal oxide varistor on output side. DIN rail mounting hardware is included.Original Press Release:
HBControls Offers New Multiple-Zone Relay Units
BRIDGEWATER, MA - A new 12-zone heater control module from HBControls maintains constant temperature for multiple heaters.
The compact unit, only 10.5 inches long and 5 inches wide, includes 12 solid state relays (SSRs) capable of switching up to 1200 watts each. About the size of a razor blade without the sharp edges (1.7" x 1" x .03"), the relays can be unplugged for easy replacement. Each SSR has the ability to control 240 volts AC at 5 amperes at an ambient temperature of up to 30 degrees Centigrade. Designed to interface with a programmable logic controller, the relays can be controlled by 15 to 32 volts at 20 milliamperes each.
Although designed as a solution for a manufacturer of plastic extruders to keep multiple heaters at a constant temperature, the unit, perhaps with minor variations, is applicable to a variety of other industries. For example, equipment used in food processing and in manufacturing semiconductor circuit boards and medical devices often requires precision temperature control. Even vending machines could make use of solid state relays to keep foods hot or cold. And the possibilities go beyond temperature control - the units could also be used to control a series of pumps, motors, solenoids, or power contactors.
"We work directly with the customer's engineering department to develop exactly the right solution," said Project Development Engineer Frank Thoman. "We become familiar with their application, and work to give them what they need in the smallest package possible. There's a lot of power packed into this one small board."
HBControls can design modules that switch voltage ranging from 12 to 660 volts AC. Along with the durability and precise performance provided by solid state relays, HBControls' pre-assembled modules are engineered for easy wiring, and include mounting hardware necessary for installation on a DIN rail. Each relay circuit on the board is protected by a transient voltage suppressor on the input side and by a metal oxide varistor on the output to the heating unit. Other features include green input status indicators (LEDs) for all relays, on-board fuses, and red indicators (LEDs) for blown fuses. "HBControls saves people space, time, money, and effort," Thoman said.
More information on the company's full line of solid state relays and heat sink assemblies is available from Lyle Strode, President, HBControls, Inc., 32 Scotland Boulevard, Unit #9, Bridgewater, Massachusetts 02324; TEL: 508-697-1693 (or toll-free at 800-879-7918); FAX: 508-697-1104; e-mail: hbc@hbcontrols.com.
