E. Dold & Söhne GmbH & Co. KG

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E-Mail: dold-relays@dold.com

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M 14 Posts in this encyclopedia category

Magnetic switch

The contactless magnetic switch is suitable for monitoring the position of sliding, hinged or removable safety guards, even in cases of heavy soiling or hygienic requirements. The magnetic switch...

Manual start

By pressing the reset button and after checking the input image and a positive test by the SAG, an enable signal is generated. This function is also called static operation and is prescribed for...

Mean Time To Failure dangerous (MTTFd)

Expected value of the mean time to dangerous failure.

Mechanical guard locking

Mechanical guard locking with separate actuator and forced key entry for guarding separating protective devices, such as safety doors and bonnets in machine and plant construction. After the key...

Multiple fault occurrence time (CET)

Time span in which the probability of the occurrence of combined safety-critical multiple faults is sufficiently low for the requirement class under consideration. The time span begins with the...

Indicator current path

A signalling current path is used to generate a non-safety-related output signal.

Measuring relay

Measuring relays are used for electrical safety. They monitor physical quantities such as voltage, phase failure, current, insulation faults, frequency, standstill, etc.

Miniature relay

If high currents are to be switched reliably in a small space and galvanic isolation of the control and load circuit is required, there is no way around the compact miniature relays available in...

Modbus RTU

The Modbus protocol is an open communication standard based on a master/slave architecture that enables simple and reliable communication as well as user-friendly commissioning and control between...

Motor protection

Electronic reproduction of the bimetal function for motor protection. Convenient setting on the front of the unit with potentiometer. Automatic and remote reset possible.

Motor starter

The motor starter offers a reversing and soft start/soft stop function, current monitoring as well as a motor protection function and, when the motor is switched off, galvanic mains isolation...

Multifunction relay

Multifunctional relays can be used universally. They belong to the group of timing relays. By setting the respective function, multifunctional relays can be used as flashing relays, clock...

Muting

Time-limited intended cancellation (override function) of the safety function with additional sensors [IEC / DIN EN 61496-1].

Muting sensor

See Muting.