E. Dold & Söhne GmbH & Co. KG

Tel.: +49 7723 654-0
E-Mail: dold-relays@dold.com

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R 10 Posts in this encyclopedia category

Redundancy

Presence of more than necessary for the function. Several functional groups are used for the same function (e.g. more channel structure). In safety engineering, especially the "duplication of...

Cleaning / Washing

In accordance with the protection class for wash-tight relays, RT III, the relays can be washed in a suitable cleaning medium. For environmental reasons, we recommend not cleaning the assemblies....

Relay

Relays are electromagnetic switches that can be used to switch circuits on, off and over. Among other things, a distinction can be made here between safety relays, time relays, measuring relays,...

Reset

Reset/set to a defined state, e.g. start.

Reset button

Reset button in a SAG represents a restart interlock, which is only cancelled by actuation.

Risk

Combination of the probability of occurrence of damage and the extent of damage. [EN 292-1]. The severity of the damage, the hazard exposure, the probability of occurrence and the lack of...

Risk assessment

Assessment of safety-related requirements, taking into account extent of damage, probability of occurrence, risk classification.

Relapse delay

When the operating voltage is applied, the timing relay immediately switches to the operating position. If the operating voltage is interrupted, the off-delay time begins. After the delay time has...

Recirculation loop

Monitors controlled actuators The SAG can only be activated when the feedback loop is closed. Safe feedback is provided, e.g. for relays or contactors, with positively driven contacts....

Closed-circuit current principle

With the closed-circuit current principle, the contact falls back into the rest position as soon as the response condition is fulfilled.