H3AM-NS-C300 Omron, H3AM-NS-C300 Datasheet - Page 7

• Manufacturer Part Number: H3AM-NS-C300
• Description: TIMER, ON-DELAY, 100/240VAC, 12H
• Manufacturer: Omron

Specifications of H3AM-NS-C300

• Contact Configuration: SPCO
• Nom Input Voltage: 240VAC
• Delay Time Range: 0.2s To 12h
• Adjustment Type: Knob
• Relay Mounting: Panel
• Svhc: No SVHC (15-Dec-2010)
• Coil Voltage Vac Nom: 240V

H3AM
Precautions
Before Use
Before using the H3AM-NSR, apply voltage between terminals 9
and 10 to reset the operation.
When changing the setting time of the H3AM-NSR to a longer time
value, be sure to apply voltage between terminals 9 and 10 during
the change, otherwise the Timer may malfunction.
Correct Use
Setting Changes
Be sure to adjust the time unit selector and instantaneous or time-
limit output selector for R2 relay only before the Timer is turned ON,
otherwise the Timer may be damaged or malfunction.
Be sure to set the time only when Timer has stopped, otherwise the
Timer may malfunction.
Power Supply
Use a switch or relay contact to impose supply voltage on the Timer
at one time. If the supply voltage is imposed on the Timer gradually,
the Timer may not reset or a time-up error may result.
Time Setting
Do not turn the time setting knob beyond the permissible range. If a
precise time setting is required, check the operation of the Timer in
trial operation before the Timer is put in actual operation.
Operating Environment
If the Timer is used in any place that may be affected by noise, be
sure to separate the Timer, input device, and connecting wires from
the noise source. The use of shielded wires for the input line is rec-
ommended.
The external surfaces of the Timer may be affected by organic sol-
vents such as thinner, benzine, or a strong alkaline or strong acidic
substance.
Do not use the Timer in a location where the Timer is exposed to cor-
rosive gas or direct sunlight or where there is excessive dust.
Water Protection
When mounting the Timer on a panel, evenly tighten the Timer to a
specified torque. If the Timer using waterproof packing is tightened
to a torque other than the specified value, required waterproof prop-
erties will not be achieved.
Others
If the Timer is mounted on a control panel, dismount the Timer from
the control panel or short-circuit the circuitry before carrying out a
voltage withstand test between the electric circuitry and non cur-
rent-carrying metal part of the machine, in order to prevent the inter-
nal circuitry of the TImer from damage.
The internal elements may be damaged if a voltage other than the
rated supply voltage is applied.
Precautions for VDE Conformance
The H3AM as a built-in timer conforms to VDE0435/P2021 provided
that the following conditions are satisfied:
The output section of the H3AM is provided only with basic isolation.
To ensure reinforced isolation required by the VDE standards, pro-
vide supplementary basic isolation on the load side connected to
the output.
The H3AM itself is designed according to the following:
On the above basis:
Operation parts on the front and bottom: Reinforced isolation
Output: Basic isolation
Overvoltage category III
Pollution degree 2
With clearance of 5.5 mm and creepage distance of 5.5 mm at
240 VAC
With clearance of 3.0 mm and creepage distance of 3.0 mm at
240 VAC
H3AM
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