# Switch Amplifier 01670S-We77/Ex2 by Pepperl + Fuchs - Control Circuit

The **Pepperl + Fuchs Switch Amplifier 01670S-We77/Ex2** is a crucial component designed for precise control in industrial applications. This amplifier, also known as **01670S** and **We77/Ex2**, is engineered for \[Ex ia\] IIC PTB environments, ensuring reliable performance in demanding conditions. Its primary function is to manage and regulate control circuits, making it an essential part of automation systems. This device is known for its durable design and efficient operation.

This switch amplifier features a changeover contact and operates with a 24VAC power supply, supporting a wide range of industrial setups. The **switch amplifier** is designed to meet stringent safety standards, including Cl.I Div. 1 Groups A, B, C, D; Cl. II Div. 1 Groups E, F, G; and Cl. III Div. 1. Its robust construction and reliable performance make it ideal for various industrial applications. This **switch amplifier** is a dependable solution for control circuit needs.

-   **Changeover Contact:** Provides versatile switching capabilities.
-   **Output:** Delivers 250VAC/4A/500VA with a cos of 0.7.
-   **Supply Voltage:** Operates within a UNenn -10% to +15% range.
-   **Compliance:** Meets Cl.I Div. 1 and other critical safety standards.
-   **Application:** Perfect for control circuit applications.

The **Pepperl + Fuchs 01670S-We77/Ex2** guarantees efficient and safe operation within industrial systems. Its design ensures long-lasting performance and reliability, making it a valuable asset for any automation setup. If you need a dependable solution for your control circuit needs, this **switch amplifier** from **Pepperl + Fuchs** is an excellent choice. Contact Ram Automations at [info@ramautomations.com](mailto:info@ramautomations.com) for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** Pepperl + Fuchs
- **Type:** Industrial Automation > Control Components > Switch Amplifiers
- **Tags:** 01670S-We77/Ex2, control circuit, industrial automation, Pepperl + Fuchs, switch amplifier, switch amplifier 24VAC

## Variants

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

## Images

- Switch Amplifier 01670S-We77/Ex2 by Pepperl + Fuchs - Control Circuit-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/pepperl-fuchs-switch-amplifier-01670s-we77ex2)
> Updated: 2026-09-18