
Counters

Counters made by Littelfuse use microcontrollers to ensure excellent repeat accuracy. The solid-state reliability of these single-function time-delay relays makes them ideal choices for applications requiring millions of accurate operations over many years.
- Minimum input voltage ratings of 12 V dc and 24 V ac
- Maximum input voltage ratings 120 V dc and 240 V ac
- Maximum counts of 250 or 1023
- Switch opening times ≤20 ms
- Ac line frequency/Dc ripple of 50/60 Hz with accuracy within 10 %
- Encapsulation protects internal circuits from humidity, physical shocks, and vibrations
- Available with SPDT or SPST output circuitry
- Low cost, small size, and low weight
Counters Parts
Filters
Showing 1 to 8 of 8 Total Results
Part Number | Actions | Input Voltage (V) | Output Form | Count Range |
---|
Part Number | Actions | Input Voltage (V) | Output Form | Count Range | |
---|---|---|---|---|---|
12 V dc | Isolated SPDT - NO | 1 - 7 counts to start | |||
24 V ac | Isolated SPDT - NO | 1 - 7 counts to start; maximum: 250 | |||
120 V ac | Isolated SPDT - NO | 1 - 7 counts to start; maximum: 250 | |||
120 V ac | Isolated SPDT - NO | 1 - 7 counts to start | |||
120 V ac | Isolated SPDT - NO | 1 - 7 counts to start | |||
120 V ac | Isolated SPDT - NO | 1 - 7 counts to start; maximum: 250 | |||
120 V ac | Non-isolated SPDT - NO | 1 - 7 counts to start; maximum: 250 | |||
24 or 240 V ac | 1 - 1023 |
Counters Applications
- Coin counters
- Compressors
- Heaters
- Lighting
- Motor drives
- Vending machines
Counters Resources

Industrial Product Selection Guide
Our comprehensive Industrial Product Selection Guide features 225+ Relay Product Series. Color-coded and organized by product categories, this