High performance meets simplicity: The new PR electronics universal trip amplifier for industrial applications

The new programmable PR electronics 4179B limit switch unit brings added value to PR’s 4000 series by offering an even more versatile solution for monitoring AC limit values. This new model replaces the previous 2231 and, together with the 4131, forms a more comprehensive product family.

Versatility and Performance

The 4179B is designed to meet a wide range of industrial needs, including overload monitoring, substation monitoring, and backup power systems. Its high EMC performance and excellent signal‑to‑noise ratio ensure reliable operation even in demanding environments.

Helppo ohjelmointi ja joustavat tuloalueet
Laitteen ohjelmointi on vaivatonta 4500-sarjan näytön tai PPS-sovelluksen avulla.
4179B tukee monipuolisia ohjelmoitavia mittausalueita ja reletoimintoja, kuten ikkuna, asetusarvo, virta päälle, viive päälle/pois, virheilmoitus ja lukitus. Tuloalueet kattavat 0–300 VAC RMS ja 0–5 AAC RMS, taajuusalueella 40–400 Hz. Laite on varustettu yleisvirtalähteellä, joka toimii välillä 21.6...253 VAC tai 19.2...300 VDC.

Easy Programming and Flexible Input Ranges

The device can be programmed effortlessly using the 4500 series display or the PPS application.
The 4179B supports a variety of programmable measurement ranges and relay functions, such as window, trip value, power‑on activation, on/off delay, error indication, and latch. Input ranges include 0–300 VAC RMS and 0–5 AAC RMS, with a frequency range of 40–400 Hz. The device features a universal power supply operating between 21.6…253 VAC or 19.2…300 VDC.

Strengths of the New Limit Switch Unit

Universal power supply: 4179B supports a wide range of supply voltages, making it highly adaptable to various environments.
Bluetooth and data logging: Enhanced connectivity options enable improved data management and monitoring.
Modbus compatibility: Simplifies integration into existing systems for seamless operation.
High safety standards: Input limits and 2.3 kV galvanic isolation increase safety.
Low power consumption: Ensures efficient operation with minimal energy loss.
Isolated relays: Two isolated 2A AC relays provide reliable switching performance.