PYF08A Omron, PYF08A Datasheet - Page 10

• Manufacturer Part Number: PYF08A
• Description: NEW P/N PYF08A-E
• Manufacturer: Omron
• Series: PYFr

Specifications of PYF08A

• Accessory Type: Socket, Front Mounting
• Associated Relay Series: MY
• Number Of Poles: 2
• Termination Style: Screw
• Mounting Style: DIN Rail
• Width: 22 mm
• Socket Mounting: DIN Rail
• Current Rating: 7A
• Socket Terminals: Screw
• Voltage Rating: 250VAC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Safety Precautions
Refer to Safety Precautions for All Timers.
When selecting a control output, use the H3Y-2 for switching ON and
OFF the power and the H3Y-4 for switching ON and OFF the minute
load.
The operating voltage will increase when using the H3Y in any place
where the ambient temperature is more than 50°C. Supply 90% to
110% of the rated voltages (at 12 VDC: 95% to 110%) when
operating at 45°C or higher.
Do not leave the H3Y in time-up condition for a long period of time
(for example, more than one month in any place where the ambient
temperature is high), otherwise the internal parts (aluminum
electrolytic capacitor) may become damaged. Therefore, the use of
the H3Y with a relay as shown in the following circuit diagram is
recommended to extend the service life of the H3Y.
Do not connect the H3Y as shown in the following circuit diagram on
the right hand side, otherwise the H3Y’s internal contacts different
from each other in polarity may become short-circuited.
Use the following safety circuit when building a self-holding or self-
resetting circuit with the H3Y and an auxiliary relay, such as an MY
Relay, in combination.
Do not use the H3Y in places where there is excessive dust,
corrosive gas, or direct sunlight.
Do not mount more than one H3Y closely together, otherwise the
internal parts may become damaged. Make sure that there is a
space of 5 mm or more between any H3Y Models next to each other
to allow heat radiation.
The internal parts may become damaged if a supply voltage other
than the rated ones is imposed on the H3Y. When more than 100 V is
applied to 12- or 24-VDC models, the internal element (varistor) may
break.
Precautions for EN61812-1
Conformance
The H3Y as a built-in timer conforms to EN61812-1 provided that the
following conditions are satisfied.
Handling
Before dismounting the H3Y from the socket, make sure that no
voltage is imposed on any terminal of the H3Y.
Correct
L
1
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
L
2
In the interest of product improvement, specifications are subject to change without notice.
Auxiliary relay such as MY Relay
: H3Y
Auxiliary relay:
MY Relay
Incorrect
L
1
L
2
Wiring
The power supply for the H3Y must be protected with equipment
such as a breaker approved by VDE.
Basic insulation is ensured between the H3Y’s operating circuit and
control output.
Insulation requirement:
Output terminals next to each other on the H3Y-4 or H3Y-4-0 must
have the same polarity.
pollution degree 1 (H3Y-4/-4-0),
pollution degree 2 (H3Y-2/-2-0)
(with a clearance of 1.5 mm and a
creepage distance of 2.5 mm at 240 VAC)
Overvoltage category II,
H3Y
10