| Quick Links: | Watlow Din-A-Mite Series | Watlow Power Series |
| Eurotherm EFit Controllers | Eurotherm EPack Controllers | Eurotherm EPower Controllers |
SCR controls, also called silicon controlled rectifiers, play a critical role in temperature regulation. Their primary use is to control the flow of electricity to a heater, precisely regulating temperature to produce specific material effects or properties within an industrial furnace, oven, or other thermal processing equipment. SCR controls are up to 99.5% efficient. Since SCRs are solid state devices with no mechanical wear parts, they provide long, maintenance-free operation, dramatically increasing heater life and reducing down time and cost.
Watlow Din-A-Mite® Series
The Watlow Din-A-Mite series spans the gap from solid state contactor to fully featured SCR power control, providing a low-cost, compact and versatile solid state controller option for controlling electric heat. DIN-rail and standard panel mounting, plus a cabinet thru-wall mount version, are available. All Din-A-Mite SCRs are mercury-free.
| Product | Max Output | Output Firing | Phases |
| Din-A-Mite A | 25A at 600 VAC | Zero Cross | 1 |
| Din-A-Mite B | 40A at 600 VAC | Zero Cross | 1 |
| Din-A-Mite C | 80A at 600 VAC | Zero Cross, Phase Angle | 1 or 3 |
| Din-A-Mite D | 100A at 600 VAC | Zero Cross | 1 |
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Watlow Power Series™
Watlow’s Power Series is a microprocessor-based product that features application flexibility unmatched by any other SCR power controller on the market today.
These controllers include single and three-phase models from 65 to 250 amperes. Field configurable phase-angle or zero-cross firing improves application flexibility on site where needed. 50/60Hz independent operation allows utilization almost everywhere in the world without special calibration considerations. Serial communication via Modbus® RTU allows setup and monitoring of load status from a computer station or control room. On-board semiconductor fusing improves reliability by protecting the SCRs from heater short circuits. On-board heater bakeout and control diagnostics can help eliminate initial start up problems.
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Eurotherm EFit Controllers
Eurotherm’s EFit power controller is the perfect fit for simple heating applications. It achieves stable, precise control in the most demanding industrial environments, even when cabinet space is at a premium.
There is nothing to configure – just clip the EFit controller onto the DIN rail, then plug and play.
This controller is designed to carry currents from 16 to 50 amps, with operating voltage between 100 and 500 volts. EFit controllers are specified for normal operation up to 45°C.
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Eurotherm EPack Controllers
Eurotherm’s EPack power controller is a compact, fully-featured power controller that combines a high level of functionality and configurability with simplicity of setup and operation.
EPack is highly configurable and may be adapted for current and future needs using a software key to purchase additional functionality when needed.
This controller is designed to carry currents from 1 to 63 amps, with operating voltage between 100 and 500 volts. It has a compact DIN rail and bulkhead mounting format in two available widths. The unit is specified for normal operation up to 45°C.
►Technical Information – 1-phase controller (pdf)
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Eurotherm EPower Controllers
EPower™ is the Eurotherm series of advanced power control units.
This controller is designed to carry currents from 50 to 630 amps. It can operate at up to 690 volts and is specified for normal operation up to 40°C. EPower includes seven different power configurations within one unit, depending on the number of power modules fitted. From single phase configuration to two-times-two phase control, the unit is perfectly modular and configurable to your process requirements. Multiple zones can be controlled with one unit.
EPower is fitted with a 4 line x 10 character display, with indication of the process values and diagnostic information, along with an alarm and event message center. Communications options include standard fieldbus networks such as Modbus RTU, Profibus DP, DeviceNet®, Ethernet (Modbus TCP), Ethernet/IP, CC-Link and Profinet IO communications. Quick Start HMI menus provide an easy and friendly way to quickly configure the unit, and more complex configurations are handled with the iTools software package.
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