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CHINT YBLX-ME Series Travel and Limit-Switch Actuating Head Plunger, Rotating Arm, Roller, Free Divection
Mechanical limit switches are contact sensing devices widely used
for detecting the presence or position of objects in industrial
applications. The term limit switch is derived from the operation
of the device it-self. As an object (or target) makes contact with
the operator of the switch, it eventually moves the actuator to the
"limit" where the elec-trical contacts change state.
Through this mechanical action, electrical contacts are either
opened (in a normally closed circuit) or closed (in a normally open
circuit). Inductive proximity, capacitive proximity, and
photoelectric sensors perform this same process through non-contact
sensing.
Features and Benefits of Limit Switches
Can be used in almost any industrial environment
Very precise in terms of accuracy and repeatability
Consume little electrical energy
Can switch loads with high inductance
Can control multiple loads
Limitations of Limit Switches
Generally restricted to equipment operating at relatively low
speeds.
Must make direct contact with target.
Moving mechanical parts will wear out.
Limit Switch Terminology
Pretravel — the distance or angle that the actuator must go through
to trip the contacts
Operating Point — position of the actuator at which the contacts
snap to the operated position
Release Point — the position of the actuator at which the contacts
return to their original state
Differential — distance (degrees) between contacts trip and
contacts reset
Overtravel — movement of the actuator beyond the contacts trip
point
Initial Position — position of actuator when no external force is
ap-plied to the actuator
Some other important terms associated with limit switches:
Operating force (torque) — force required to move the actuating
element
Minimum return force (torque) — minimum force required to return
actuator to its initial position
Total Travel — the maximum allowable distance the actuating
ele-ment can travel
Repeat Accuracy — ability of a switch to repeat its characteristics
precisely from one operation to the next operation
YBLX-ME/8000 series of travel switch is applicable to electric circuit with voltage not more than AC Ue 380V/50- 60Hz or DC Ue 220V and current not more than AC Ie 0.8A or DC Ie 0.16A as travel control, direction of motion or speed change of movement mechanism, automatic control of machine tool, limit action & travel or procedure control of movement mechanism. Standard: GB 14048.5,IEC60947-5-1,CCC China Compulsory Product Certification
Product Series | YBLX |
---|---|
Serial Number | Standard type |
product type | Limit switch |
Sensor design | Compact |
Ontology type | Fixed |
Manipulator type | Rotating head |
material | plastic |
Body material | plastic |
Head material | plastic |
Fixed mode | Ontology |
Operating head movement | Rotate |
Head type | Spring return roller rocker thermoplastic variable length |
Method type | Side movement, 2 directions |
Cable entry hole | 1 for M20x1.6 cable gland, cable outer diameter: 7...13 mm |
Number of poles | 2 |
Contact type | 1 NC + 1 NO |
Contact action | Momentary |
Switch trigger | 30° convex edge |
---|---|
Electrical connections | Screw clamp terminal, clamping force: 1 x 0.34...2 x 1.5 mm2 |
Line insulation | Zb |
Forced to open | Have |
Forced to open minimum torque | 0.15 Nm |
Minimum trigger torque | 0.1 Nm |
Maximum operating speed | 1.5 m/s |
Contact line specification | A300, AC-15 (Ue = 240 V), Ie = 3 A, Ithe = 10 A in accordance with
EN/IEC 60947-5-1 Appendix A |
Rated insulation voltage [Ui] | 300 V compliant with UL 508 |
Rated impulse withstand voltage [Uimp] | 6 kV in accordance with IEC 60664 |
Short circuit protection | 10 A fuse fuse, type gG |
Electrical life | 5000000 times, DC-13, 120 V, 4 W, working rating <60 times/min,
load factor: 0.5 in accordance with IEC 60947-5-1 Appendix C |
Mechanical life | 10000000 times |
width | 30 mm |
height | 108...157 mm |
depth | 42 mm |
product weight | 0.18 kg |
ISO n°1 terminal | (21-22) NC |
Impact resistance | 45 gn for 11 ms in accordance with IEC 60068-2-27 |
---|---|
Vibration resistant | 25 gn (f= 10...500 Hz) in accordance with IEC 60068-2-6 |
IP protection level | IP65 in accordance with IEC 60529 |
IK protection level | IK04 according to EN 50102 |
Overvoltage type | Class II complies with IEC 61140 |
Operating temperature | -25...70 °C |
Storage ambient temperature | -40...70 °C |
Protection process | TC |
certified product | CCC |
Standards compliant | EN 60947-5-1 |
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