# Isolated Switching Amplifier We77 EX1 01544S | Pepperl Fuchs

The **Isolated Switching Amplifier We77 EX1 01544S** by **Pepperl Fuchs** is engineered for critical applications in hazardous environments. This amplifier ensures safe and efficient control circuit functionalities, making it ideal for industrial automation systems. It is designed to meet the stringent requirements of various industrial sectors.

With a part number of **01544S**, this amplifier operates with a voltage of approximately 8V and a current of around 8mA, adhering to Namur DIN 19234 standards. It features maximum values up to 13.5V, 31mA, a capacitance of 71nF, and a power output of 125mW. The output includes a changeover contact for versatile application. For power supply, the We77 EX1 requires a range of -10% to +15% with a frequency of 45-65Hz, consuming approximately 3.5VA. This product meets regulatory standards.

Key Features:

-   **Isolated Design**: Provides electrical isolation for enhanced safety.
-   **Hazardous Area Certified**: Meets \[eex ia\]iic standards for safe operation.
-   **Reliable Performance**: Ensures consistent control circuit functionalities.
-   **Wide Operating Range**: Suitable for various industrial environments.
-   **Changeover Contact Output**: Offers versatile connectivity options.

Specifications:

Operating Voltage: 8V  
Current: 8mA  
Maximum Voltage: 13.5V  
Maximum Current: 31mA  
Capacitance: 71nF  
Power Output: 125mW

The **Pepperl Fuchs We77 EX1 01544S** is a dependable component for industrial automation. Its robust design and compliance with safety standards make it a prime choice for hazardous area applications. Enhance your systems with this reliable amplifier. For any inquiries, please contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Pepperl Fuchs
- **Type:** Industrial Automation > Amplifiers > Switching Amplifier
- **Tags:** EX1, hazardous area, industrial automation, isolated amplifier, Pepperl Fuchs, switching amplifier

## Variants

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

## Images

- Isolated Switching Amplifier We77 EX1 01544S | Pepperl Fuchs-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/pepperl-fuchs-we77-ex1-01544s)
> Updated: 2026-09-18