Datasheet

170 General-purpose Basic Switch Z
Tightening
The suitable tightening torque for screw terminals is given below.
• Screw terminals except for those on Split-contact Models
(Z-10FY-B): 0.78 to 1.18 N·m
• Screw terminals on Split-contact Models
(Z-10FY-B): 0.49 to 1.18 N·m
Operation
• Make sure that the switching speed and frequency are is within the
specified ranges.
1. If the switching speed is extremely slow, the contacts may not be
switched smoothly, which may result in a contact failure or contact
welding.
2. If the switching speed is extremely fast, switching shock may
damage the Switch prematurely. If the switching frequency is too
high, the contacts may not be able to keep up with the speed.
The rated permissible switching speed and frequency indicate the
switching reliability of the Switch.
The life of a Switch is determined at the specified switching
speed. The life varies with the switching speed and frequency
even when they are within the permissible ranges.
Always conduct appropriate durability tests under actual condi-
tions before using a Switch.
• Make sure that the actuator travel does not exceed the permissible
OT position. The operating stroke must be set to 70% to 100% of
the rated OT.
Panel Mount Switch (Z-15 @ Q @ , Z-01 @ Q @ )
• When mounting the panel mount plunger model with screws on a
side surface, be careful of the dog angle and operation speed.
Excessive dog angle or operation speed may damage the Switch.
• When using the panel mount plunger model mounted with screws
on a side surface, be careful not to apply a large shock. Applying a
shock exceeding 1,000
m/s
2
may damage the Switch.
• When using the panel mount plunger model mounted with screws
on a side surface, remove the hexagonal nuts from the actuator.
High-sensitivity Switch (Z-15H)/
Extra-high-sensitivity Switch (Z-15H2)
• When using the Switch in a DC circuit, be sure to provide an arc
suppressor as well because the small contact gap of the Switch
may result in contact troubles.
• In an application where a high repeat accuracy is required, limit the
current that flows through the Switch to within 0.1 A. Also, use a
relay to control a high-capacity load if the Switch is connected to
such a load. (In this case, the exciting current of the relay coil is the
load of the Switch.)
• Do not apply a force of 19.6 N or higher to the pin plunger.
• Exercise care that the environment conditions such as temperature
and humidity do not change abruptly.
Micro Load Applicable Range
Using a model for ordinary loads to open or close the contact of a
micro load circuit may result in faulty contact. Use models that
operate in the following range. However, even when using micro load
models within the operating range shown here, if inrush current
occurs when the contact is opened or closed, it may increase contact
wear and so decrease durability. Therefore, insert a contact
protection circuit where necessary.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability level
of 60% (λ
60
). The equation, λ
60
= 0.5×10
-6
/operations indicates that
the estimated malfunction rate is less than 1/2,000,000 operations
with a reliability level of 60%.
Models with Drip-proof Terminal Cover (Z- @ A55-B5V) Wiring
• To attach the Protective Cover to the case, hold the cover in almost
parallel to the case and then push it to the case. If the cover is
pushed diagonally, the rubber packing may slip off, degrading the
sealability of the Switch.
• Use round solderless terminals having the following dimensions to
connect leads to the terminals. Tighten the screws of terminals to a
torque of 0.78 to 1.18 N·m. Use the terminal shown below.
• A cable 8.5 to 10.5 mm in diameter can be applicable to the sealing
rubber of the lead outlet of the Switch. A two-core or three-core
VCT cable having a cross-sectional area of 1.25 mm
2
is especially
suitable for this.
• M4 small screws with spring toothed washer are used as the termi-
nal screws.
Z-01H
Z-15 @ , Z-10FY
Minimum applicable load
1 mA at 5 VDC 160 mA at 5 VDC
30
24
12
5
0
1 10 100 1,000
Current (mA)
0.1
1 mA
Operating
range for
general load
models
Z-15H, H2
Z-15G
Z-15E
Z-10FY
Z-15ER
Operating range
for micro load
models Z-01H
26 mA0.16 mA
800 mW5 mW
100 mA 160 mA
Unusable
range
DC voltage (V)
Terminal with
toothed
washer
Rubber packing
4.3 dia.
20 max.
8