Sony BK79700 Switch Block Control for WAGO-I/O-SYSTEM 797, Intrinsically Safe, DIN Rail, IP20

Automation engineers in chemical and petrochemical plants rely on the Sony BK79700 Switch Block Control to manage intrinsically safe field signals directly within the WAGO-I/O-SYSTEM 797. This compact control block mounts on a 35mm DIN rail and integrates the internal logic and system functions, eliminating the need for separate controllers in hazardous areas.

Key specifications

• Product Type: Control Block for WAGO-I/O-SYSTEM 797
• Explosion Protection: Intrinsically Safe (Ex i), ATEX and IECEx certified
• Mounting: 35mm DIN rail
• Connection Technology: CAGE CLAMP® for internal system connections
• Operating Temperature: -20 to +60 °C
• Storage Temperature: -40 to +85 °C
• Relative Humidity: 95% (non-condensing)
• Protection Degree: IP20
• Housing Material: Polyamide 66 (PA 66), Light Gray
• Supply Voltage: Via backplane bus
• Configuration: Software-configurable via WAGO-I/O-PRO
• Isolation: Galvanic isolation

Why choose it

This control block simplifies system architecture by embedding control functions directly in the I/O node. Its intrinsically safe design ensures safe operation in explosive environments, while the rugged polyamide housing and wide temperature range guarantee reliable performance in industrial settings. With CAGE CLAMP® technology, installation is quick and maintenance-free.

Ideal use cases

• Process automation in chemical and petrochemical plants
• Material handling systems in potentially explosive atmospheres
• Remote I/O applications where space is limited

Good to know

The Sony BK79700 is part of the WAGO-I/O-SYSTEM 797, a modular platform for intrinsically safe signal processing. It is software-configurable via WAGO-I/O-PRO, allowing flexible adaptation to various field devices. The galvanic isolation enhances system safety by separating the field side from the control side.