Avatar Instruments offers a wide range of both standard and custom engineered SCR power panels. From 100 watts to mega-watts, Avatar Instruments can build an SCR system to meet your needs.

Avatar Instruments’ standard line of SCR power control panels are engineered with safety and ease of installation in mind. The control panels are prewired and tested on name plate voltage. Customer needs only to install incoming power wires, outgoing heater wires and thermocouple input connections. Standard panel sizes are 20, 30, 60, 100, 150, 200, 250, 350 and 600 Amps. 24 to 600VAC.

Standard features include:

• SCR Power Controller – Single or Three Phase; Phase Angle Fired or Zero Voltage Switched
• NEMA 12 enclosure. Fan cooled or air conditioned
• Input power circuit breaker or fused disconnect with door interlock
• Definite purpose power contactor in front of SCR
• Power On-Off Button
• Manual reset button
• E-Stop button
• Power on indication (lamp)
• Load branch fusing with box style connections to the heaters
• Temperature controller. Separate over temperature controller
• Fused control transformer
• Drawings and bill of materials for your records

Options include:

• Power monitoring (volts, amperes, watts)
• Chart recorder
• Heater on indicator (lamp)
• Alarm indicators (lamps)
• Annunciation flashing beacon and/or audible horn
• Thermocouple outlet(s)
• Ground Fault Interruption
• NEMA 3, 3R, 4 and 4X enclosures, for outdoor use or wash down environments.
• Door interlock shut down; main contactor shut down when door is open.
• Remote aux input to main circuit breaker
• Fused 120V convenience outlet

Avatar Instruments uses Honeywell, Omron, Fuji, Partlow and Yokagawa temperature controllers.

Our UL508A panel shop can provide design and process documentation utilizing AutoCAD, PADs, ProE, Protel, Solidworks or other applicable software platforms. Email your system requirements to Avatar Instruments to Systems@AvatarInstruments.com for review.

Standard SCR Power Control Panels

Avatar Instruments panels are engineered and built for safety, strength and reliability in real world industrial environments. The system shown has these standard features:

• Avatar Instruments “A” Series SCR
• Digital temperature controller
• Dedicated over temperature limit
• E-Stop
• Manual reset button
• Load branch fusing
• Circuit breaker w/lockout handle
• NEMA 12 enclosure w/fan kit
• Definite purpose contactor interlocked with control logic ciruits

480V 100Amp 3PH SCR Control Panel

Standard 192KW SCR CONTROL SYSTEM

The following control panels are examples of customs Avatar Instruments built to order.

400KW 3-ZONE SCR CONTROL SYSTEM

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18KW SCR POWER PANELS

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5 ZONE SCR CONTROL PANEL

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250KW 5-ZONE NEMA 3R (OUTDOOR) SCR POWER PANEL

Using an outdoor enclosure presents unique challenges. Since the enclosure is sealed, a single l large fan cooled SCR could not be used. Excess heat generated by the SCR, 750W, could not be removed. Load control circuits were broken down into five (5) zones. Avatar model A3Z-48-80-TH thru hole mount SCRs were used. The heat sink fins of the SCRs are on the outside of the enclosure. Gasket sealant was used on the edges of the SCR heat sinks.

 

 

 

 

 

 

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