Application:
Due to the permanent magnetic clamping system, which is effective in de-energized condition, these holding magnets are used preferably there, where long holding times are necessary and no holding force is required only for a short time or occasionally. Furthermore applications are as safety magnet in transport equipment and lifting equipment, since a load is hold reliable at power failure. In order to reach the nominal holding force, the steel surfaces of the clamping surface are to be covered completely by the workpiece.

Execution:
The holding magnets consist of a permanent magnetic clamping system for holding ferrous magnetic workpieces and of an energizing coil, which, in the switched on condition, neutralizes the magnetic field at the clamping area and thus makes removal of the workpieces and/or release of loads possible.

Depending on the application the appropriate rules for the prevention of accidents are to be followed. The devices are built and examined according VDE 0580. This is considered as conformance certificate in accordance with CENELEC memorandum Nr.3, Part 3, Par.2.3 according to the new equipment safety law of the EEC.

Nominal voltage: 24 V DC

Duty: 100% ED

Protection: IP 65 according DIN 40050

Isolation class: E

Notes to technical data:
The maximum holding forces are given for St 37 and are based on optimum workpiece thickness at an airgap dL= 0 and 100% coverage of clamping surface. These values are given for warmed-up condition. At full duty no thermal overload is caused. However the over-temperature causes an increase of magnetic remanence.
Due to safety reasons and depending on the application a safety factor is to be taken into account.
The nominal values in the table are given to determine the correct electronic accessories and are based on 20°C coil temperature at nominal voltage (VDE 0580/10.70 § 9.1). During operation the nominal power decreases, depending on the duty.