Timers & Counters
Panel-mount timers and counters for sequencing, batching and cycle control.
About Timers & Counters
Timers and counters handle the sequencing in a control panel: delaying a start, running a star-delta changeover, cycling a pump, or stopping a machine after a set number of pieces. We supply Selec digital timers and counters for panel fronts and Minilec electronic timers for DIN-rail mounting inside the enclosure.
Selec multifunction timers cover settings from 0.01 s to 999 h on models such as the XT546. Selec counters and timer-counter combinations count up or down, take NPN, PNP or potential-free contact inputs, and keep the count through a power cut on memory-retentive models. Minilec rail timers include on-delay, star-delta and multifunction types, including engine-start sequences.
We help you choose between a front-panel timer the operator can set and a rail timer that stays out of reach. We also match the supply voltage and contact rating to your circuit.
Key specifications
| Brands | Selec (panel-mount timers, counters, timer + counter); Minilec (DIN-rail electronic timers) |
|---|---|
| Panel sizes (Selec) | 48×48, 72×72 and 96×96 mm; 17.5 mm DIN-rail multifunction timers |
| Timing range | 0.01 s to 999 h (Selec XT546); 0.1 s to 100 h (Minilec D1 ETM1) |
| Timer functions | On-delay, interval, cyclic on/off, star-delta changeover, engine-start (multi-attempt) |
| Counter modes | Up / down, bi-directional, quadrature, batch (Selec timer + counter) |
| Counter inputs | NPN, PNP or potential-free contact (Selec XTC5400) |
| Outputs | 1 C/O relay (Selec XT546); 2 relay outputs (Selec XTC5400); 1 C/O + 1 C/O, 5 A at 230 V AC resistive (Minilec D1 ETM1) |
| Supply voltage | Selec 85–270 V AC (XT546) or 90–270 V AC/DC (XTC5400), 24 V variants; Minilec 24–240 V AC/DC or fixed AC/DC variants |
| Mounting | Panel cut-out (Selec) or 35 mm DIN rail (Minilec) |
Features & benefits
- Nine selectable time ranges on Selec XT546 multifunction timers
- Memory retention keeps the count after a power interruption (XTC5400)
- Two set points on the XTC5400 for pre-warning and final cut-off
- Programmable input scaling on Selec timer-counters
- Rotary-switch mode selection on Minilec multifunction rail timers
- Dedicated star-delta timers for motor starter panels
Where it’s used
- Star-delta motor starter panels
- Pump cycling and dosing control
- Batch counting on packaging lines
- Machine cycle sequencing
- DG set start and cranking sequences
- Conveyor and production counting
Timers & Counters — FAQs
Which timer do I need for a star-delta starter?
Use a dedicated star-delta timer, such as the Minilec S1 ESD1, or a multifunction timer with a star-delta mode. It times the motor's run in star, then switches to delta after a short changeover gap so the two contactors never close together.
Will a counter lose its count if the power fails?
Not on memory-retentive models. The Selec XTC5400, for example, retains its count through a power interruption. Tell us if retention matters for your process and we will pick a model that has it.
Panel-mount or DIN-rail timer — which is better?
Choose a panel-mount digital timer when the operator needs to see or change the setting. A DIN-rail timer suits fixed delays that should be set once at commissioning and left alone.
What sensors can drive a Selec counter?
Selec timer-counters such as the XTC5400 accept NPN or PNP proximity and photoelectric sensors, as well as potential-free contacts like limit switches.
