Product Overview
77.21.9.024.8251 is a 77 series modular solid state relay. Suggested applications include lamp inrush current reduction (CFL - Compact Fluorescent energy-saving lamps and similar), heater control, solenoid, and contactor driver.
- 25A modular SSR, 1 NO (SPST-NO) output configuration
- 22.5mm housing, heat-sink + plastic cover
- 24 to 277V AC output (with TRIAC), 35mm rail (EN 60715) mount
- 6kV (1.2/50µs) insulation between input and output
- High switching speed, high endurance, silent switching
- Spark and bounce-free switching, low control power, 3-phase general purpose
- Relay-style” terminal arrangement (input and output terminals on opposite sides)
- IP20 protection
- Ambient temperature range from -20 to +80°C
Product details
| Contact Configuration |
SPST-NO |
| Operating Voltage Max |
305VAC |
| Relay Terminals |
Box Clamp |
| Operating Voltage Min |
19VAC |
| Control Voltage Max |
32VDC |
| SVHC |
No SVHC (04-Feb-2026) |
| Load Current |
25A |
| Relay Mounting |
DIN Rail |
| Switching Mode |
Random Turn On |
| Control Voltage Min |
4VDC |
| Product Range |
77 Series |
Other details
| Brand |
FINDER |
| Part Number |
77.21.9.024.8251 |
| Quantity |
Each |
| Technical Data Sheet (47.00B) EN |
View or download |
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