Omron G3PF-225B-CTB Solid-state Relay
Omron G3PF-225B-CTB is a single-phase G3PF solid state relay using a 2-element structure and phototriac isolation. It is rated for a 12 to 24 VDC input, with a 9.6 to 26.4 VDC operating range and input current of 5 mA max. at 12 VDC or 10 mA max. at 24 VDC. The rated output is 100 to 240 VAC across a 75 to 264 VAC load voltage range. Output load current is 25 A at 25°C and inrush current resistivity is 220 A. Detachable screwless clamp terminals, DIN track or screw mounting, zero-cross operation, and a yellow indicator are specified. The G3PF-225B-CTB is part of the SSR range from Omron.

| Brand | Omron |
| Product | Solid State Relay |
| Model Number | G3PF-225B-CTB |
Omron G3PF-225B-CTB Solid-state Relay - Technical Specifications
| Specification | Value |
|---|---|
| Number Of Phases | Single-phase |
| Isolation Method | Phototriac |
| Mounting | DIN track mounting,Screw mounting |
| Operating Indicator | Equipped (Yellow) |
| Terminal Structure | Screwless clamp terminals (detachable) |
| Product Classification | For Single-phase Heater |
| Number Of Elements | 2 |
| Zero Cross Function | Equipped |
| Input Rated Voltage | 12 to 24 VDC |
| Input Current | 5 mA max. (at 12 VDC) 10 mA max. (at 24 VDC) |
| Input Operate Voltage | 9.6 VDC max. |
| Input Release Voltage | 1 VDC min. |
| Output Rated Load Voltage | 100 to 240 VAC |
| Output Load Voltage Range | 75 to 264 VAC |
| Output Minimum Load Current | 1.5 V max |
| Output Load Current | 25 A (at 25 ℃) |
| Output Inrush Current Resistivity | 220 A (60 Hz 1 cycle) |
| Operate Time | 1/2 cycle of load power source + 1 ms max. |
| Release Time | 1/2 cycle of load power source + 1 ms max. |
| Output On Voltage Drop | Main circuit: 1.6 V max. (RMS) Alarm output: 1.8 V max. |
| Leakage Current | Main circuit: 10 mA max. (at 200 VAC) Alarm output: 20 µA max. |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Dielectric Strength | 2500 VAC 50/60 Hz 1 min |
| Vibration Resistance | 10 to 55 to 10 Hz, 0.175 mm single amplitude (0.75 mm double amplitude) |
| Shock Resistance | 294 m/s 2 (DIN Track mounting) |
| Ambient Temperature Operating | -30 to 80 ℃ (with no freezing or condensation) |
| Ambient Temperature Storage | -30 to 100 ℃ (with no freezing or condensation) |
| Ambient Humidity Operating | 45 to 85% RH |
| Weight | Approx. 400 g |
The Omron G3PF-225B-CTB Solid State Relay is specified with a 25 A output load-current rating at 25°C and 220 A output inrush current resistivity for one 60 Hz cycle. Its rated output voltage is 100 to 240 VAC with a 75 to 264 VAC load voltage range. The relay uses a single-phase, 2-element structure and phototriac isolation. On the input side, 12 to 24 VDC is the rated voltage range and 9.6 to 26.4 VDC is the operating range. Input current is listed as 5 mA max. at 12 VDC and 10 mA max. at 24 VDC. Input operate voltage is 9.6 VDC max., while release voltage is 1 VDC min. Detachable screwless clamp terminals, DIN track or screw mounting, zero-cross function, and a yellow indicator are specified.
Its operate and release times are both one-half cycle of the load power source plus 1 ms max. The main-circuit output ON voltage drop is 1.6 V max. RMS and main-circuit leakage current is 10 mA max. at 200 VAC. Insulation resistance reaches 100 MΩ min. at 500 VDC, with 2500 VAC dielectric strength at 50/60 Hz for 1 minute. The operating range is -30 to 80°C without freezing or condensation. For the corresponding G3PF version without the CTB suffix, see the G3PF-225B.


