Temperature Controllers www.tempco.com | (800) 323-6859 | email: [email protected] 13-87 SCR Power Controller “E” Series — Three-Phase 60 through 1200 Amp (3-leg – Phase Angle Fire) Command Signals: 4-20 mA; 0-5 VDC; 0-10 VDC; potentiometer Control Mode: 3-Leg – Phase Angle Fire Load Current: 60, 90, 120, 180, 225, 350, 500, 650, 800, 1000, 1200 Amps Line Voltage: 120, 208, 240, 380, 415, 480 or 575 VAC; 10 to 20% 50/60 Hz Zero and Span: Factory pre-set. User adjustable over a range of 25% of span. Transient Voltage and dv/dt: 200 volts/microsecond minimum. Uses a dv/dt snubber and a metal oxide varistor (MOV). Control Range: 0 to 98% of line voltage Linearity: Average load voltage is linear within 2% of the command signal. Options Available: See Ordering Box Temperature Operating: 32 to 122°F (0 to 50°C) Storage: 14 to 158°F (-9 to 70°C Cooling: 60A convection; All others fan cooled) Mounting: Panel mount with heat sink fins vertical, or any position if fan cooled Dimensions (60 to 225 Amp units use a partial case design. 350 Amp and up use a caseless, open panel mount design.) 60-225 Amp units—Overall: 17.5"W × 16.25"H × 9.25"D Mounting Centers: 15.0"W × 15.69"H 350 and 500 Amp units—Overall: 19.0"W × 31.0"H × 8.5"D Mounting Centers: 17.25"W × 14.37" Top/14.37" Bottom 650 Amp units—Overall: 24.0"W × 34.75"H × 11.25"D Mounting Centers: 23.0"W × 16.25" Top/17.5" Bottom 800-1200 Amp units: Overall: 27.0"W × 38.75"H × 11.75"D Mounting Centers: 26.0"W × 17.25" Top/20.5" Bottom Weight 60-225 Amp units: 40 lbs 350-500 Amp units: 60 lbs 650 Amp units: 126 lbs 800-1200 Amp units: 231 lbs Series “E” SCR Power Controllers are offered with the options listed in the worksheet at right. Fill in the boxes with the appropriate num- ber and/or letter designation for your require- ments and a part number will be assigned. COMMON CONFIGURATIONS — “E” SERIES 240 VAC; 3-phase; Phase Angle Firing; 4-20 mA control input; Includes Over-Temperature Thermostat – N.O. for controls 90 Amp and over. Load Current: Part Number 60 Amp SRT03101 90 Amp SRT03102 120 Amp SRT03103 180 Amp SRT03104 225 Amp SRT03105 350 Amp SRT03106 Control Input BOX 1 A: 4-20 mA B: 0-5 VDC C: 0-10 VDC D: Potentiometer Line Voltage BOX 3 1: 120 VAC 8: 208 VAC 2: 240 VAC 3: 480 VAC 4: 575 VAC 5: 415 VAC Load Current BOX 2 xxxx: 60, 90, 120, 180, 225, 350, 500, 650, 800,1000, 1200 Amps Options (up to three) BOXES 4, 5, 6 A: True Power Regulation/Current Limit B: Over-Current Trip C: RMS Current Regulation/Over-Current Trip D: RMS Current Limit/Over-Current Trip E: Over-Temperature Thermostat – N.O. Contacts F: Over-Temperature Thermostat – N.C. Contacts G: Load Unbalance Alarm H: SCR Failure Alarm N: None Potentiometer Kit (ordered separately): 5KΩ potentiometer and knob Part number: SRS99001 Standard lead time is 3 to 4 weeks. Design Features ✴ Back to Back SCRs ✴ Includes 3 Semiconductor I2T Fuses ✴ Line Voltage Compensation ✴ Diagnostic Indicators (Control Power, Command Signal, Blown Fuse) ✴ Fan Cooled on 90 Amp and Higher Units ✴ Transient Voltage Protection ✴ Voltage Squared Linearity ✴ Electrically Isolated Heat Sink ✴ Multi-Turn Zero & Span Adjustments ✴ UL, cUL, CE Compliant 1 2 3 4 5 6 The “E” Series SCR Power Controllers are three-phase, six SCR, phase angle power controls. 5 LEDs monitor line, command signal, 3-line current. They are ideal for electric ovens, furnaces and kilns, silicone carbide, trans- former coupled loads. Note: Over-temperature ther- mostat is standard on 90 Amp controls and over. Specify N.O or N.C. when ordering. – SRTE Ordering Code: Specifications Partial case shown for 60 to 225 Amp units. 350 Amp and up use a caseless, open panel mount design.
