# Pepperl Fuchs 01666S Isolation Amplifier Switch - 110VAC

The **Isolation Amplifier Switch 01666S-We77Ex1** by **Pepperl Fuchs** is engineered for precision in 110VAC control circuit applications. This industrial-grade component is designed to provide reliable isolation and control, ensuring the safety and efficiency of your systems. This switch is a critical component for industrial automation, offering dependable performance in demanding environments.

This **Isolation Amplifier Switch** features a PTB NR.EX-79/2043X output with a changeover contact rated at 250VAC/4A/500VA cos 0.7. It operates within a supply voltage range of +-15% with a frequency of 45-65Hz, consuming approximately 3.5VA. Manufactured in Germany, the **01666S** weighs only 320 grams, making it compact and easy to integrate into various setups. The **Pepperl Fuchs** brand is synonymous with quality and reliability, providing solutions for industrial and commercial applications.

-   **Changeover Contact:** Provides versatile switching capabilities for various control circuit needs.
-   **Versatile Voltage Supply:** Operates within a wide voltage range for flexible application.
-   **Compact Design:** Lightweight and easy to install, saving space and simplifying integration.
-   **High-Quality Build:** Manufactured in Germany, ensuring durability and long-term performance.
-   **Reliable Performance:** Ensures consistent and dependable operation in critical applications.

This **Isolation Amplifier Switch** is ideal for industrial automation systems, offering precise control and isolation. Trust in the **Pepperl Fuchs** brand for your industrial needs. For inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Pepperl Fuchs
- **Type:** Industrial Automation > Control Components > Isolation Amplifiers
- **Tags:** 01666S, 110VAC, amplifier switch, control circuit, industrial automation, isolation amplifier, Pepperl Fuchs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Pepperl Fuchs 01666S Isolation Amplifier Switch - 110VAC-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/pepperl-fuchs-01666s-amplifier-switch)
> Updated: 2026-10-02