Selec 800XC Cyclic Timer with Unequal On-Off Time
Selec 800XC Cyclic Timer – Unequal ON/OFF Time, 20–240V AC/DC, DIN Rail
Compact cyclic timer with unequal ON/OFF settings, 6 time ranges, universal supply voltage, finger-safe terminals, and SPDT relay output for industrial automation.
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The Selec 800XC is a DIN-rail-mounted cyclic timer designed for industrial automation applications that require unequal ON and OFF time cycles. Featuring a universal supply voltage (20–240V AC / 18–240V DC), 6 selectable time ranges, SPDT relay output, and LED status indications, it is ideal for repetitive control functions in machines, conveyors, lighting, and process systems.
Key Features
Cyclic timer with unequal ON & OFF durations
6 selectable time ranges for flexible control
Universal supply voltage: 20–240V AC / 18–240V DC
LED indication: Power ON, Relay ON
SPDT relay 2 C/O contacts, 5A at 250V AC / 24V DC resistive
Resolution: 0.1 sec
Finger-safe terminals for operator safety
Asymmetrical cyclic mode: ON-first or OFF-first
Compact 22.5 mm DIN rail mounting size
Fast reset on power interruption (<100 ms)
Technical Specifications
Display & Indicators
| Parameter | Value |
|---|---|
| LED Indication | Power ON, Relay ON |
| Resolution | 0.1 sec |
Input Specifications
| Parameter | Details |
|---|---|
| Accuracy Setting | ±5% of Full Scale |
| Repeat Accuracy | ±0.5% or 50 ms (F.S.) |
| Reset | ON power interruption, reset time < 100 ms |
Timing Ranges
| Range | Options |
|---|---|
| ON Time | 0–1 sec/min/hr, 0–10 sec/min/hr |
| OFF Time | 0–1 sec/min/hr, 0–10 sec/min/hr |
Output Specifications
| Parameter | Value |
|---|---|
| Relay Contact | 2 C/O SPDT |
| Contact Rating | 5A at 250V AC / 24V DC Resistive |
| Functional Modes | Asymmetrical Cyclic ON-first / OFF-first |
Aux Supply
| Parameter | Value |
|---|---|
| Supply Voltage | 20–240V AC (50/60 Hz), 18–240V DC |
| Power Consumption | 2 VA max |
Environmental
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | –20°C to 75°C |
| Humidity | 95% RH non-condensing |
Mechanical
| Parameter | Value |
|---|---|
| Mounting | DIN Rail |
| Width | 22.5 mm |
| Weight | 110 g |
Standards
| Category | Compliance |
|---|---|
| EMI/EMC | IEC 61326-1 |
| Safety | IEC 61010-1 |
Applications
Conveyor motors cycling
Industrial process automation
Packaging machinery
Interval lighting systems
Heating elements
Repetitive ON/OFF control in plant operations
What’s in the Box?
Selec 800XC Timer
Terminal connection guide
Instruction manual
Warranty card
FAQ
Q1. Can the 800XC operate with a DC supply?
Yes, it supports 18–240V DC input.
Q2. Does it support both ON-first and OFF-first modes?
Yes, both cyclic modes are available.
Q3. What is the minimum timing resolution?
0.1 second resolution.
Q4. Can it be used for unequal ON & OFF cycles?
Yes, that is the primary feature.
Q5. Is the relay SPDT or DPDT?
SPDT 2 C/O contacts.
Q6. Is DIN rail mounting required?
Yes, it is a DIN 22.5 mm module.