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Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

20/04/2021 - 22/04/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Safety switching goes modular

Safety switching goes modular
Phoenix Contact's PSR modular system is built around a universal master, which is responsible for monitoring safety-oriented signals. Subject to requirements, up to four secure off-delay or instantaneous contacts can be connected via the T-bus rail bus connection to extend each module. 

The power supply, a safe switched potential, and the feedback loop are controlled via the T-bus. Each function, for example an emergency cut-out, safety door or light barrier, can consequently switch to up to ten expansion modules without cross-wiring faults. 

Pluggable connection terminals are available as standard with screw or spring-cage technology. The new spring-cage connection terminals can be opened at the front with the use of a screwdriver, which opens two clamps. As a result, the wires can be conveniently released and re-wired. Flexible wires with ferrules can be plugged directly into the clamps without the use of tools.
Phoenix Contact

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