THC-109B is a light dependent relay series used to switch lighting circuits automatically according to ambient light. The series covers 16A, 20A and 25A versions and is designed for DIN rail installation in lighting control panels.
Series Range
| Model | Control current | Contact capacity |
|---|
| THC-109B 16A | 16A | 16A / 250VAC resistive load |
| THC-109B 20A | 20A | 20A / 250VAC resistive load |
| THC-109B 25A | 25A | 25A / 250VAC resistive load |
Technical Characteristics
| Voltage range | AC220V, 50/60Hz |
|---|
| Operating voltage range | AC180-250V |
|---|
| Power consumption | 4VA max. |
|---|
| Ambient light setting | <5-150 lux, adjustable |
|---|
| Mechanical life | 10^5 operations at rated load |
|---|
| Mounting | DIN rail mounting |
|---|
Use
- Used for automatic lighting control in circuits where switching depends on natural light level.
- The 16A, 20A and 25A versions share the same basic control function with different rated load capacity.
