A165E

9

Safety Precautions

Be sure to read the precautions for all A165E models in the website at: http://www.ia.omron.com/.

Indication and Meaning for Safe Use

!CAUTION

If the Operation Unit is separated from the Switch Unit, the

equipment will not stop, creating a hazardous condition.

Always confirm that safety functions are operating before

starting operation.

Mounting

• Always make sure that the power is turned OFF before mounting,

removing, or wiring the Switch, or performing maintenance.

Electrical shock or fire may result if the power is not turned OFF.

• The tightening torque is 0.29 to 0.49 N·m.

Wiring

• Be sure to use electrical wires that are a size appropriate for the

applied voltage and carry current. Perform soldering according to

the conditions given below. If the soldering is not properly

performed, abnormal heating may result, possibly resulting in fire.

1. Hand soldering: 30 W, within 5 s

2. Dip soldering: 240

°C, within 3 s

Wait for one minute after soldering before exerting any external

force on the solder.

• Use non-corrosive resin fluid as the flux.

• Make sure that the electric cord is wired so that it does not touch

the Unit. If the electric cord will touch the Unit, then electric wires

with a heat resistance of 100

°C min. must be used.

• After wiring the Switch, maintain an appropriate clearance and

creepage distance.

Operating Environment

• The IP65 model is designed with a degree of protection so that it

will not sustain damage if it is subjected to water from any direction

to the front of the panel.

• The Switch is intended for indoor use only. Using the Switch

outdoor may cause it to fail.

Using the Microload

• Insert a contact protection circuit, if necessary, to prevent the

reduction of life expectancy due to extreme wear on the contacts

caused by loads where inrush current occurs when the contact is

opened and closed.

• The A165E-@U (one-piece construction) allows both a standard

load (125 V at 1 A, 250 V at 0.5 A) and a microload. If a standard

load is applied, however, the microload area cannot be used. If the

microload area is used with a standard load, the contact surface

will become rough, and the opening and closing of the contact for

a microload may become unreliable.

• The minimum applicable load is the N-level reference value. This

value indicates the malfunction reference level for the reliability

level of 60% (

malfunction rate is less than 1/2,000,000 with a reliability level of

60%.

LEDs

The LED current-limiting resistor is built-in, so external resistance is

not required.

Operating Torque

• Do not exceed an operating torque of 0.49 N·m in the direction of

rotation.

• Do not pull the operating button or apply excessive force to any

side of the button.

Otherwise it may be damaged.

Indicates a potentially hazardous situation

which, if not avoided, may result in minor

or moderate injury or in property damage.

Precautions

for Safe Use

Supplementary comments on what to do

or avoid doing, to use the product safely.

Precautions for Correct Use

CAUTION

Rated voltage

Internal limiting resistor

24 VAC/VDC

2.4 k

Ω

0.15 mA

1 mA

Area of use

Current (mA)

Invalid

area