Electrical Specifications

• Input supply voltage: Single‑phase AC, typically 200‑240 V AC ±10% (50/60 Hz) (verify exact variant).

• Maximum load current rating: For example up to 60 A continuous — depending on model designation (e.g., “060” in part number) and ambient conditions.

• Control input: Low‑voltage control signal (e.g., 0‑10 V DC or 4‑20 mA) or manual potentiometer input, galvanically isolated from mains.

• Switching method: Phase‑angle control (thyristor triggers each half cycle at a variable angle) allowing smooth modulation of output voltage/power.

• Load compatibility: Suited for both resistive loads (heaters, lamps) and moderate inductive loads (single‑phase motors) when correctly selected.

• On‑state voltage drop / power dissipation: Thyristor conduction drop typically in the low volts; system must allow for heatsinking to manage dissipated heat when high load current flows.

• Minimum load requirement: Some modules require a minimum current to guarantee stable triggering and avoid mis‑fire.

Selection Chart

Model Code Breakdown – DSPR-1-100A-P-WC

Mechanical & Mounting

• Package / Mounting type: Panel or chassis mount module – heavy‑duty screw/bolt terminals for load input & output; control terminal block separate.

• Thermal management: External heatsink required (or integral heatsink and fan) depending on rating and ambient temperature. Proper airflow or forced cooling may be needed at high currents.

• Dimensions & Weight: Module size depends on current rating; typical mid‑range unit might be approx. 200‑300 mm height × 100‑150 mm width × 80‑120 mm depth; weight several kilograms.

• Connections: Load side terminated via heavy duty busbars or M6/M8 screws; control side via terminal block; Earth/ground terminal clearly provided; recommended crimped lugs or flex cable.

Environmental & Protection Features

• Operating ambient temperature: Typically −10 °C to +50 °C (up to +40 °C at full rating, derated above).

• Storage temperature: e.g., −20 °C to +70 °C.

• Humidity: Up to 90% RH non‑condensing (verify for your model).

• Altitude: Standard ratings up to ~2000 m without de‑rating; check if higher altitude operation is needed.

• Protection features:

  • Over‑temperature shutdown or thermal trip.

  • Over‑current protection recommended (external fuse or breaker) — the module may not include internal fuse.

  • Short‑circuit protection or built‑in snubber/RC network to suppress voltage transients.

  • Galvanic isolation of control circuit from mains for operator safety.

• Ingress / Safety rating: Typically EN/IEC ratings for industrial modules (e.g., IP20 in enclosure); if module is exposed may require higher IP or protective cover.

• Vibration / shock: Industrial standard compliance (for modules mounted in machines); check manufacturer spec for exact values.

Performance & Functional Characteristics

• Switching frequency: In a phase‑angle mode, the thyristor conducts each half‑cycle (50/60 Hz) with variable conduction angle. For burst‑fire (if supported) groups of cycles may be turned on/off; either way switching remains in the mains frequency band.

• Response time: Very fast compared to mechanical contactors — change in control input leads to change in output typically within a few milliseconds (depending on load).

• Linearity: Good correspondence between control input (e.g., 0‑10 V) and delivered power/voltage; ensures predictable modulation.

• EMI / harmonic considerations: Because phase‑angle switching generates harmonics and voltage transients, it is recommended to use line filters, snubber circuits and proper grounding to meet EMC standards.

• Heat dissipation: Ensure heatsink size and airflow allow module junction temperature to remain within safe limits (typically <125 °C). At high current loads the module may need forced air or fan cooling.

• Minimum load / leakage current: Thyristor modules can leak small current when off and may have minimum load current to guarantee trigger behaviour; check the datasheet for exact values.

• Switch‑on behaviour: Soft start, inrush current management, and proper coordination with upstream protection devices recommended.

Certifications & Compliance

• Compliant with international standards for power semiconductors and industrial switching devices (e.g., IEC 60068 for environmental testing, IEC 60947 for industrial switching equipment) — verify actual model.

• Safety certification: CE mark (for EU market version), RoHS compliancy (lead‑free components) likely.

• Designed for integration into industrial control panels; inside a licensed enclosure possibly subject to local (India) standards such as IS/IEC and UL if exported.

Installation & Maintenance Guidelines

• Ensure module is mounted on a flat metal surface capable of acting as a heatsink (or attach to a dedicated heatsink).

• Maintain clearance for convection around the module: typically top and sides require at least 20‑30 mm clearance; if fans used ensure unobstructed air path.

• Use appropriate sized cables and terminations rated for the full current. Tighten terminals to manufacturer‐specified torque to avoid heating and voltage drop.

• Provide a fuse or circuit breaker upstream sized for the load and module rating — inrush current may require slow‐blow type.

• Provide separate control wiring, shielded if needed, and route away from high‐current cables to prevent interference.

• Periodically inspect module for dust buildup, blockages of cooling paths, and check temperature of heatsink during operation (it should remain within safe limits).

• Replace module if overheated, or terminals show signs of corrosion or overheating; check for LED indication or fault status (if the model includes one).

Typical Applications

• Industrial heater circuits (e.g., ovens, laminators, curing lines) needing fine power control.

• Single‑phase motor control (when motor load compatible) for adjusting speed or torque in systems like conveyor belts, winches, small mixers.

• Lighting dimming (large loads) in architectural or industrial lighting systems requiring robust heavy‑duty control.

• Process control panels where smooth modulation of power and minimal mechanical wear is required.