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WE 77/EX-1 Pepperl + Fuchs
Based on over 4900 reviews
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Key specifications
Manufacturer
Pepperl + Fuchs
HS code
85389091
Ship to
Philippines
Availability
30 remaining
Express delivery to your country
Full 12-month warranty
Secure payment process
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The Pepperl + Fuchs WE 77/EX-1 is a high-quality switch amplifier designed to facilitate the safe and efficient transfer of digital signals from hazardous to non-hazardous areas. This device is particularly suitable for use in control and instrumentation technology, where it provides galvanic isolation for standard signals such as 20 mA and 10 V, or for adapting and standardising signals. Constructed for durability and reliability, the WE 77/EX-1 is compatible with a 230V AC supply voltage and features a single relay output with one changeover contact. It supports a reversible mode of operation and includes lead breakage (LB) monitoring to ensure the integrity of connections. The switch amplifier is designed for mounting on a 35 mm DIN mounting rail in accordance with EN 60715, ensuring easy integration into existing systems. It boasts an IP20 protection degree, safeguarding against solid objects larger than 12.5 mm but not against water, making it suitable for controlled environments. With a robust operating temperature range of -25 to 60°C, the WE 77/EX-1 can withstand challenging industrial environments. Its compact dimensions and approximate weight of 390 g make it an unobtrusive addition to any setup. The device is certified with an ATEX marking of II (1)GD [EEx ia] IIC for circuits in zone 0/1/2, indicating its suitability for use in explosive atmospheres. It also complies with the relevant EMC and low voltage directives, ensuring it meets the stringent standards required for industrial equipment in the European market. The Pepperl + Fuchs WE 77/EX-1 switch amplifier is an essential component for professionals seeking to maintain signal integrity and safety in industrial applications involving hazardous areas.
Typical applications
- Interface for NAMUR sensors in hazardous areas
- Signal isolation and transfer from hazardous to non-hazardous areas
- Control of intrinsically safe circuits within industrial automation systems
- Monitoring and detection of lead breakage in control circuits
- Adaptation and standardisation of 20 mA and 10 V standard signals
- Relay output for switching devices in safe areas based on signals from hazardous areas
- Use in control and instrumentation technology for process automation
- Installation in environments requiring ATEX certification for explosive atmospheres
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