Single Function Time Relay
The SRT8-A1 is a handy single-function time relay made for daily electrical tasks. It acts as an on-delay timer. When you power it on, it waits a set time before turning on the connected equipment. For customers in Lahore looking for a straightforward time delay relay, this is a solid choice for daily use in shops, factories, or home electrical panels
Description
Key Features
This unit is built to provide exact timing with straightforward controls:
- Simple Setup: Features an easy-to-use potentiometer for manual time adjustments.
- On-Delay Operation: Specifically configured as an on-delay timer, perfect for sequential start-ups.
- Wide Timing Range: Offers 10 distinct intervals, ranging from 0.1 seconds up to 10 days to suit various industrial needs.
- Clear Indicators: Equipped with built-in LED lights to show the current relay status at a glance.
- Compact Design: Built as a 1-module unit, it is designed for standard DIN rail mounting within your control panels.
Applications
This time delay relay works well in many real-world situations, especially for electrical control automation in Lahore’s residential and commercial projects. Common uses include:
- Time switches – turn lights or signs on/off after a delay
- Heating systems – delay start to avoid sudden load
- Fans – keep running for a set time after switching off
- Pump down control – let pumps run a few extra seconds after the compressor stops
- Motor and compressor protection – as part of the protection relays setup
- General switches and timing logic in control panels
Technical Specifications (SRT8-A1)
| Parameter | Specification |
| Function | Delay ON |
| Supply Terminals | A1-A2 |
| Voltage Range | AC 230V (50-60Hz) |
| Power Input | AC max. 12VA / 1.3W |
| Supply Voltage Tolerance | -15%; +10% |
| Supply Indication | Green LED |
| Time Ranges | 0.1s – 10 days, ON, OFF |
| Time Setting | Potentiometer |
| Time Deviation | 5% (mechanical setting) |
| Repeat Accuracy | 0.2% (set value stability) |
| Output | 1 x SPDT |
| Current Rating | 16A / AC1 |
| Switching Voltage | 250VAC / 24VDC |
| Min. Breaking Capacity DC | 500mW |
| Output Indication | Red LED |
| Mechanical Life | 1 x 10⁷ |
| Electrical Life (AC1) | 1 x 10⁶ |
| Reset Time | max. 200ms |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -35°C to +75°C |
| Mounting | DIN rail EN/IEC 60715 |
| Protection Degree | IP40 (front panel) / IP20 (terminals) |
| Operating Position | Any |
| Max. Cable Size | 1×2.5 or 2×1.5 (with sleeve max 1×2.5 AWG12) |
| Dimensions | 90 x 18 x 64mm |
| Weight | 59g |
| Standards | IEC/EN 61812-1, IEC/EN 61010-1 |
FAQs
Why choose a single-function over a multi-function relay?
A single-function unit is simpler. It offers a direct solution for systems that don’t change their operating logic. It lowers the risk of accidental changes. This makes it great for standard tasks, like an off delay timer or a fixed delay on a break timer.
How can you tell if the relay is functioning properly?
You can check the operational status via the integrated LEDs. A steady green light shows that power is connected. The red LED lights up when the output is active.
What are the most common single functions for these devices?
Beyond the On-Delay function, other common timing modes include Off-Delay and cyclic operations. At Jawad Electric, we have many time relays to meet your needs.
How can I get the latest price and order these parts?
To order components for your site in Lahore, reach out to our team. We’ll provide the latest prices and availability. We are ready to assist with your electrical procurement needs.
Looking to buy a single-function time relay in Lahore? Jawad Electric offers genuine SRT8-A1 units at a fair price. You can order directly for same-day pickup or delivery.
Call or visit us to check the current price and place your order.
