---
lang: "en"
title: "TSV101 AC Voltage Detector"
sku: "TSV101"
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brand: "MARCOM S.r.l."
end_of_life: "false"
---

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TSV101: AC Voltage Detector with opto-isolated open collector output

The TSV101 is an AC voltage detector with an opto-isolated open collector output. It detects voltage in two ranges: 85 to 250 VAC and 170 to 250 VAC. The range is settable via an internal jumper. The TSV101 uses exclusively electronic components; there are no mechanical or electromechanical components. This improves the detector's lifespan. Galvanic isolation is achieved through the use of a photocoupler on the output. The detector is powered solely by the monitored voltage. Designed for maximum versatility, the TSV101 detects the presence or absence of mains voltage in UPS systems, power supplies, electrical sources, and power lines. Its DIN rail mount design ensures quick and secure installation.

## Technical Features

- Galvanic isolation between the AC line and the digital output for enhanced safety
- Two selectable AC voltage detection levels, adjustable via an internal jumper
- Compatible with both 115V and 230V AC networks for versatile applications
- IP30 protection, ensuring durability in industrial environments
- Low thermal drift, maintaining reliable performance under various conditions
- Self-powered design, operating directly from the monitored voltage
- Operating voltage range: 0 to 250 VAC
- Detection level with jumper open: 85 VAC
- Detection level with jumper closed (default): 170 VAC
- Tolerance threshold: ±8 VAC
- Operating temperature range: 0 to +40 °C
- Operating humidity range: 5 to 85% relative humidity (non-condensing)
- Dimensions: 85 x 35.1 x 23.5 mm

### Typical Applications

- AC power outage alerts for alarm and notification systems
- AC voltage monitoring at the input of UPS systems (Uninterruptible Power Supplies)
- Industrial automation and process control applications
- Smart energy management during battery operation

### Detector can be used with

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Source: https://shop.marcomweb.it/en/iot-makers/tsv101-ac-voltage-detector

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.