NewTrend · Dual-function timer relay
Product overview
NewTrend RT8-EC offers selectable on-delay and power-on timed-interval operation with a 0.1-second to 10-day timing range. The interval mode is marked Delay off on the panel: its output operates when power is applied and releases when the selected time expires. A 10A AC-1 SPDT output, status LEDs and an 18mm DIN-rail housing suit compact control panels.
Technical selection summary
| Model | RT8-EC |
|---|---|
| Output contacts | 1 SPDT |
| AC power input | AC maximum 6VA / 1.3W |
| Weight | 52g |
| Function | On-delay; power-on timed interval (panel setting: Delay off) |
| Supply terminals | A1-A2: AC 230V or AC 380V; A1-A3: AC/DC 24V on the AC 230V / 24V version |
| Control supply options | AC 230V / AC/DC 24V version; AC 380V version |
| Supply tolerance | -15% to +10% |
| Supply indication | Green LED |
| Time setting | Range/function switches and potentiometer |
| Marked time ranges | 0.1-1s; 1-10s; 0.1-1min; 1-10min; 0.1-1h; 1-10h; 0.1-1day; 1-10days |
| Timing range | 0.1s-10days |
| Time setting deviation | 10% with mechanical adjustment |
| Repeat accuracy | 0.2% of set value |
| Temperature coefficient | 0.05%/degree C at 20 degrees C |
| Contact rating | 10A (AC-1) |
| Switching voltage | 250VAC / 24VDC |
| Minimum DC breaking power | 500mW |
| Output indication | Red LED |
| Mechanical life | 10,000,000 operations |
| Electrical life (AC-1) | 100,000 operations |
| Reset time | Maximum 200ms |
| Operating temperature | -20 to +55 degrees C |
| Storage temperature | -35 to +75 degrees C |
| Mounting | DIN rail to EN/IEC 60715 |
| Protection | IP40 front panel; IP20 terminals |
| Operating position | Any |
| Overvoltage category | III |
| Pollution degree | 2 |
| Maximum conductor size | Solid: 1 x 2.5mm2 or 2 x 1.5mm2; with sleeve: 1 x 2.5mm2 (AWG 12) |
| Body dimensions | 90 x 18 x 64mm |
| Referenced standards | EN 61812-1; IEC 60947-5-1 |
Choose the supply version before wiring. On the AC 230V / AC/DC 24V version, use A1-A2 for AC 230V or A1-A3 for AC/DC 24V. The AC 380V version uses A1-A2. Apply only one appropriate supply connection. The panel setting Delay off is a power-on interval, not a stored-energy delay after power loss.
Operation
- On-delay: applying the supply starts the timer; the output operates after the selected interval and releases when power is removed.
- Delay off panel setting: the output operates immediately at power-on and releases after the selected interval. Removing power resets the output.
Typical applications
- Industrial equipment timing
- Lighting and heating-element control
- Motor and fan control circuits
Specify your enquiry
For a focused quotation, include:
- Required control-supply version
- Timing intervals, load type and required operating sequence
- Quantity, delivery destination and documentation requirements
Download NewTrend RT8-EC datasheet (PDF)
Product reference images and drawings
Supply versions and terminal connections
On-delay and power-on interval diagrams
Eight timing-range switch settings
Dimensions in millimetres
Choose the supply version before wiring. On the AC 230V / AC/DC 24V version, use A1-A2 for AC 230V or A1-A3 for AC/DC 24V. The AC 380V version uses A1-A2. Apply only one appropriate supply connection. The panel setting Delay off is a power-on interval, not a stored-energy delay after power loss. Installation and wiring must be performed by qualified electricians.
