Solid State Relay SSR-100DA 100A

Product Overview

YM introduces the SSR Series of industrial-grade solid state relays, featuring the flagship SSR-100DA with a robust 100A capacity. Built with a durable military-spec metal housing, these SSRs are engineered for extreme reliability in demanding switching applications where traditional electromechanical relays fall short. Available in 40A (SSR-40DD), 60A (SSR-60DA), and 100A ratings, this series offers silent, high-speed, and maintenance-free operation for industrial automation, power control, and harsh environment applications. They serve as excellent, high-performance alternatives to Take place of omron solid state relay and other leading brands in critical systems.

Product Images

Technical Specifications

Model Series: SSR-40DD (40A), SSR-60DA (60A), SSR-100DA (100A) | Housing: Military-grade Metal Enclosure

• Load Current Range: 40A, 60A, and 100A models available to suit various power requirements.
• Input Control (Coil Equivalent): Low power DC input (e.g., 3-32VDC), compatible with PLCs, microcontrollers, and digital logic.
• Output Configuration: Zero-crossing or random-turn on AC output switching (specific model dependent).
• Switching Speed: Extremely fast, with typical turn-on/off times in microseconds, far faster than the ≤4ms of mechanical relays.
• Isolation Voltage: High opto-isolation between input and output (typically 2500Vrms or higher).
• On-State Voltage Drop: Low conduction loss, though specific V_TM depends on current rating.
• Mounting: Standard industrial base-plate mounting with integrated thermal conduction for heat sinking.
• Operating Temperature: Wide range, typically -30°C to +80°C, with proper heat sinking.

Note: The provided parameter table appears to describe an electromechanical relay. The specs above are representative of a true Solid State Relay. Confirm exact specifications with our datasheets.

Product Features & Advantages

• All-Solid-State Reliability: No moving parts or contacts to wear out, arc, or weld, resulting in virtually infinite mechanical life and superior reliability compared to electromechanical relays. This is a core principle of any robust solid state relay circuit.
• Military-Grade Metal Housing: Provides exceptional mechanical strength, electromagnetic shielding, and superior heat dissipation compared to plastic-bodied SSRs, making it suitable for high-vibration environments.
• Silent & Spark-Free Operation: Ideal for noise-sensitive environments and hazardous locations where arcing is a concern.
• Extremely Fast Switching: Enables high-frequency switching and precise phase-angle control, which is impossible with standard relays.
• Low EMI Generation: Zero-crossing models minimize inrush current and electrical noise, protecting sensitive electronics.
• Excellent Compatibility: Can be designed as a direct Take place of omron solid state relay or crydom solid state relay in many panel layouts, offering a cost-effective and durable alternative.

How to Integrate & Use This SSR

1. Selection & Heat Sinking: Select an SSR with a current rating at least 2x the steady-state load current for inductive loads. ALWAYS mount it onto an appropriately sized aluminum heat sink using thermal paste. Forced air cooling may be necessary for high-duty cycles or high ambient temperatures.
2. Wiring the Control Input: Connect the low-voltage DC control signal (e.g., from a PLC, solid state relay arduino schematic, or switch) to the input terminals. Observe polarity. A limiting resistor may be required depending on the control voltage.
3. Wiring the Load Output: Connect the AC load (heater, motor, transformer) to the output terminals. Use appropriately sized wires. For inductive loads (motors, solenoids), use a Metal Oxide Varistor (MOV) or RC snubber network across the output to suppress voltage spikes.
4. Fusing & Protection: Install a fast-acting fuse (e.g., semiconductor fuse) in series with the load, sized to protect the SSR. A separate fuse on the input side is also good practice.
5. Testing & Monitoring: Apply the control signal and verify load operation. Monitor the SSR's case temperature during initial operation to ensure the heat sink is adequate.

Application Scenarios

The SSR Series is built for demanding industrial and specialized applications:

• Industrial Heating Control: Precise temperature control for industrial ovens, furnaces, plastic molding machines, and packaging equipment.
• Motor & Pump Control: Soft-start, speed control, and on/off switching for AC motors and pumps without contact arcing.
• HVAC & Building Automation: Controlling fan coils, electric heaters, and damper actuators in commercial systems.
• Aerospace & Defense: As an aviation solid state relay for fuel pump control, lighting systems, and environmental control in drones and aircraft where reliability and silence are critical.
• Power & Energy Management: Used in solid state relay battery disconnect systems, capacitor bank switching, and automated power distribution panels.
• Test & Measurement Equipment: Where high-cycle life and precise switching timing are required.

Value for OEMs & System Integrators

• Lower Total Cost of Ownership: Eliminates costs associated with contact replacement, downtime from contact failure, and maintenance of mechanical parts.
• Enhanced System Uptime: The near-infinite cycle life dramatically improves the mean time between failures (MTBF) for your equipment.
• Design Flexibility: Enables new functionalities like phase-angle control and high-frequency switching that are not feasible with EMRs.
• Reduced Liability Risk: Spark-free operation enhances safety in potentially explosive or flammable atmospheres.
• Competitive Sourcing: Provides a high-quality, durable alternative to brands like allen bradley solid state relay or celduc solid state relay, often at a more competitive price point without sacrificing performance.
• Solid State Relay SSR-100DA 100A
• Durable Military Metal Relay SSR-100DA with 100A Capacity
• High Strength Solid State Relay SSR-40DD 40A
• Smart Solid Relay SSR-60DA   60A
•  
• Aviation Relay for Drone,Aircraft Engine
• High quality Aviation Engine,Train,Plane.

Quality Commitment & Customization

Our SSRs are manufactured in facilities adhering to ISO quality standards. We offer OEM/ODM services, including custom input voltage ranges (e.g., specific dc solid state relay or solid state relay ac to dc variants), custom labeling, lead lengths, and even development of specialized models like a 3 phase solid state relay or modules for automotive solid state relay 12v applications.

FAQ

Q1: What is the key difference between a Solid State Relay (SSR) and an Electromechanical Relay (EMR)?

A1: An EMR uses a coil to physically move contacts. An SSR uses semiconductor switches (like TRIACs or SCRs) with opto-couplers for isolation. SSRs have no moving parts, switch faster, are silent, and have a longer cycle life but generate heat and require heat sinking.

Q2: Why is a heat sink mandatory for an SSR?

A2: SSRs have an on-state voltage drop (e.g., 1.6V). At high currents, this generates significant heat (Power Loss = V_drop x I_load). Without a proper heat sink, the SSR will overheat and fail prematurely.

Q3: Can this SSR switch a DC load?

A3: The standard SSR-xxDA/DD series is typically for AC loads. Switching DC requires a specially designed dc solid state relay with different internal circuitry (usually MOSFET-based). Please inquire about DC load models.

Q4: Is this suitable for an automotive solid state relay box upgrade?

A4: For 12V/24V DC automotive loads, a DC SSR is required. Our metal-housed SSRs could be adapted for high-current auxiliary systems in specialty vehicles, but standard automotive environments have unique voltage transients and temperature profiles that must be considered.

Q5: Can you provide SSRs mounted on a solid state relay board 24v with control logic?

A5: Yes, we offer value-added assembly and can provide custom relay modules or boards integrating SSRs, fuses, status LEDs, and snubber circuits as per your solid state relay arduino schematic or control system requirements.