MP720 High Temperature Sealed Position Switches
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MP720 SEALED POSITION SWITCH WITH POSITIVE OPENING OPERATION OVERMOULDED CABLE - DEGREE OF PROTECTION IP67 The MP720 positive opening position switch is a dependent-action, changeover, double-gap, contact element, which is connected by means of a cable directly overmoulded into the housing. GENERAL CHARACTERISTICS, MP720 TYPES Approvals Nominal switching capacity Degree of protection Class of protection Reinforced insulation Positive break Complies with standards Mechanical life Frequency of operation Type of use Assigned insulation voltage Ui Electrical protection Connection Overall dimensions © EN60947-1 as VDE 0660 part 100 EN60947-5 as VDE 0660 part 200 10x106 operations 3600 operations per hour AC15 (3A 240VAC) DC13 (0.27A 250VDC) 250VAC 6A gl according to VDE 0636 Cable directly overmoulded to the housing section 4x0.75mm2 DIN43695, EN 50047 and NFC 63-145, class Y2

if not silver Option 1 = gold-plated contacts Material of the membrane if not chloroprene Option SI = silicone Option VI = fluor Housing: PBT reinforced with glass fibre Sealing membrane: Chloroprene rubber CR SI Silicone rubber VI Fluor rubber Cable: PVC SI Silicone rubber PUR polyurethane rubber SWITCHING DIAGRAM Depending on the type of cable Cable isolation 11 - 12: Positive Break contact: positive opening operation. 23 - 24: Working contacts. They are designed for switching circuits and must never be used for breaking a safety circuit.

COMMAND CHARACTERISTICS TERMINOLOGY Positive opening operation position. Actuator position at the point where the positive opening of the contacts is achieved. Position of the actuator when the positive opening operation on the circuitbreaking contacts has been achieved. Position in, which pre-determined dielectric voltage rating requirements is met between the open contacts in the switchable circuit. Positive opening operation travel. The minimum distance between the start of the movement of the actuator and the position where the positive opening of the contacts is achieved. Distance...

DOMED PLUNGER The actuator must be operated axially. Vertical button operating speed >1mm/s. o Z 31,10 MP720-1GA/4.. Switching diagram * = Positive opening operation travel (smp) In free position, a clearance of 0.5 to 1.0 mm has to be left from the top of the actuating button. The plunger must not be used as a mechanical endstop. Plunger actuators with a M12x1 male threaded collar must be secured by that collar using the nuts provided for that purpose.

ROLLER PLUNGER POSITIVE OPENING FORCE Fmp min. (N) POSITIVE OPENING OPERATION POSITION Pmp max. (mm) This may be operated by means of a rotating or sliding cam. A cam the angles of which are in excess of 40° or the speed of which is in excess of 2m/s must not strike the roller plunger. The contact point must be directly above the axis of the roller. Switching diagram * = Positive opening operation travel (smp) The strike angles and position must be so calculated as to avoid a violent shock to the roller ; the cam must be so shaped as to ease the roller back to the free position....

Switching diagram (4G..) * = Positive opening operation travel (smp) ROLLER LEVER 4G The actuator 4G is recommended for rapid movements although sharp movements and shocks to the roller should be avoided. The lever must be eased back to the free position. Strike angle: 30° Maximum speed: 5m/sec.