Compact DC Switching with Solid-State Technology
This board delivers 16 solid-state relay outputs in a space-saving form factor. It provides maintenance-free switching for DC loads in distributed control systems. Many engineers prefer this module for its silent operation and long service life. The unit replaces electromechanical relays in applications requiring frequent high-speed cycling.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ARS15M |
| Dimensions | 150 mm × 110 mm × 40 mm (W × H × D) |
| Weight | 0.50 kg |
| Power Supply | 24 V DC ±10% |
| Power Consumption | 4 W typical (all outputs ON) |
| Output Channels | 16 solid-state relays (MOSFET-based) |
| Output Type | Form-A (SPST-NO) |
| Load Voltage | 5 V to 250 V DC |
| Load Current | 2 A maximum per channel |
| Peak Surge Current | 5 A for 10 ms |
| On-State Resistance | ≤0.15 Ω typical |
| Off-State Leakage | ≤5 µA at rated voltage |
| Switching Time | ≤0.8 ms (turn-on), ≤0.4 ms (turn-off) |
| Switching Frequency | Up to 500 Hz |
| Isolation Voltage | 1,500 V AC (channel-to-channel) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
| Humidity Range | 5% to 85% RH (non-condensing) |
| Status Indicators | 16 LED indicators (one per channel) |
| Terminal Type | Removable screw terminals |
| Wire Gauge | 0.2 mm² to 2.5 mm² |
| Certifications | CE, UL, CSA |
Output Design and Channel Organization
This module organizes 16 solid-state outputs using MOSFET switching devices. Each channel operates as a normally open contact without any mechanical movement. The SSR design eliminates contact wear and arcing completely. This makes the board ideal for applications requiring millions of switching cycles.
Electrical Performance and Load Handling
Each output handles continuous currents up to 2 A at DC voltages from 5 V to 250 V. The module supports surge currents of 5 A for short durations. On-state resistance remains below 0.15 Ω for minimal power loss. This low resistance reduces heat generation within the control cabinet.
Switching Speed and Frequency Response
Turn-on time stays under 0.8 milliseconds for rapid output response. Turn-off occurs even faster at 0.4 milliseconds. The board supports switching frequencies up to 500 Hz. This fast response suits precision control applications and PWM outputs.
Power Consumption and Thermal Management
The unit draws only 4 W with all 16 outputs in the ON state. Efficient thermal design dissipates heat through the PCB surface. No additional heatsinks are necessary for normal operation. The module operates safely within its specified temperature range without derating.
Mechanical Construction and Physical Dimensions
This board measures 150 mm wide and weighs 0.50 kg. Removable screw terminals accept wire gauges from 0.2 mm² to 2.5 mm². The compact form factor saves valuable panel space. Installation uses standard Yokogawa backplane mounting provisions.
Status Indication and Diagnostics
Sixteen individual LEDs display the real-time status of each output. A lit LED confirms the corresponding output is conducting current. This visual indication assists with loop checking and commissioning. Operators can verify output states without external test equipment.
Isolation and Noise Immunity
Channel-to-channel isolation reaches 1,500 V AC for robust noise rejection. This high isolation prevents ground loops from affecting connected devices. The module maintains reliable operation in electrically harsh environments. Proper isolation also enhances system safety and protection.
Regulatory Certifications
The ARS15M carries CE, UL, and CSA approvals for global deployment. These certifications demonstrate compliance with industrial safety standards. Each unit undergoes rigorous testing before shipment. This quality assurance ensures consistent performance in critical applications.
Details
| Weight | 0.50 kg |
|---|---|
| Dimensions | 150 × 110 × 40 mm |
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