The Phase Angle Trigger Module MTI-JHB-C1 and MTI-JHB-C2 can be used in high-precision control systems that require smooth and continuous adjustments on voltage/current. The modules integrate the technology of synchronousness and so synchronous transformer is not required. Not For Sale Replacement Part Replacement Parts sold are not refundable, returnable or exchangeable. Specification: Item Category MTI-JHB-C2-AC18V 50/60 HZ General Purpose (New UL furnace) MTI-JHB-C1-50HZorMTI-JHB-C1-60HZ50Hz or 60Hz (Please select in the options bar) MTI-JHB-C2-50HZorMTI-JHB-C2-60HZ50Hz or 60Hz (Please select in the options bar) Connection When Input 0-10 Ma, the resistance: 500 ohm Control voltage: 0-5V Supply Voltage AC 18V 65~264V 65~264V For old model furnace, it is recommended to buy with Option SCR STT Series SCR (Silicon-controlled rectifier) - FA-STT-SCR(For UL Version Model Furnace) SCR for C1 Trigger must be changed with SCR(For old Version Model Furnace) MTC 110A-16 SCR (Silicon Controlled Rectifier) FA-MTC110-16 Troubleshooting Problem: Furnace No longer heats up, front panel indicating power to the elements no longer lights up. Solution: Please always check input power, heating elements, the temperature controller output voltage and the AC contractor suction first. Problem: The LED on the box does not light up when the program is being run. Solution: Replace the Phase Angle Trigger Module Purchase Notes: Please make sure the specification of the product meets your need before making a purchase. Since Nov 10, 2016, we no longer accept return delivery. Products are not refundable, not exchangeable, nor covered under the warranty (Consumables). We apologize for the inconvenience. Please check the package for damages before accepting the delivery. For more information or damage upon arrival please contact us. Frequency Please select the Frequency menu Dimension 87mm x 55mm x 45mm Compliance CE