Temperature Controllers www.tempco.com | (800) 323-6859 | email: [email protected] 13-86 Command Signals: 4-20 mA; 0-5 VDC; 0-10 VDC; potentiometer Control Mode: Distributive Zero Cross Load Current per Leg: 60, 90, 120, 180, 225, 350, 500, 650, 800, 1000, 1200 Amps Line Voltage: 208, 240, 480 or 575 VAC; 10% to 20% 50/60 Hz Zero and Span: Factory pre-set. User adjustable over a range of 20% 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 99.5% of line voltage Linearity: Average load voltage is linear within 2% of the command signal. Temperature Operating: 32 to 122°F (0 to 50°C) Storage: 14 to 158°F (-10 to 70°C) Cooling: 60A convection; all others fan cooled Mounting: Panel mount with heat sink fins vertical 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: 12.5"W × 16.25"H × 9.25"D Mounting Centers: 10.0"W × 15.69"H 350 and 500 Amp units—Overall: 19.0"W × 20.125"H × 8.5"D Mounting Centers: 17.25"W × 18.375"H 650 Amp units—Overall: 24.0"W × 23.0"H × 11.5"D Mounting Centers: 23.0"W × 22.0"H 800-1200 Amp units: Overall: 27.0"W × 29.0"H × 11.75"D Mounting Centers: 26.0"W × 13.75" Top/14.25" Bottom Weight 60-225 Amp units: 31 lbs 350-500 Amp units: 41 lbs 650 Amp units: 87 lbs 800-1200 Amp units: 180 lbs Specifications “D” Series 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 — “D” SERIES 240 VAC; 3-phase; 2-leg; zero cross firing; 4-20 mA control input; Includes Over- Temperature Thermostat – N.O. for controls 90 Amp and over Load Current: Part Number 60 Amp SRT02101 90 Amp SRT02102 120 Amp SRT02103 180 Amp SRT02104 225 Amp SRT02105 350 Amp SRT02106 Control Input BOX 1 A: 4-20 mA B: 0-5 VDC C: 0-10 VDC D: Potentiometer Line Voltage BOX 3 8: 208 VAC 2: 240 VAC 3: 480 VAC 4: 575 VAC Load Current BOX 2 xxxx: 60, 90, 120, 180, 225, 350, 500, 650, 800, 1000, 1200 Amps 1 2 3 4 5 Potentiometer Kit (ordered separately): 5KΩ potentiometer and knob Part number: SRS99001 Standard lead time is 3 to 4 weeks. SCR Power Controller “D” Series — Three-Phase 60 through 1200 Amp (2-leg – Zero Cross) The “D” Series SCR Power Controllers are two-leg zero cross SCR power controls that linearly control, proportional to the command signal, the power applied to a 3-phase electrical load. The Series “D” controller features a compact design, a single plug-in circuit card for ease of operation and an electrically isolated heat sink. All three leads are fused. Options (up to two) BOX 4, 5 E: Over-Temperature Thermostat – N.O. Contacts F: Over-Temperature Thermostat – N.C. Contacts G: Load Unbalance Alarm H: SCR Failure Alarm N: None Note: Over-temperature thermostat is standard on 90 Amp controls and over — Specify N.O or N.C. when ordering – SRTD Ordering Code: Partial case shown for 60 to 225 Amp units. 350 Amp and up use a caseless, open panel mount design. 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
