Page 1
Mechatronic Analog Timer H3AM 1
Mechatronic Analog Timer
H3AM
Please read and understand this catalog before purchasing the
products. Please consult your OMRON representative if you have any
questions or comments. Refer to Warranty and Application
Considerations (page 8) and Safety Precautions (page 7).
Large Setting Dial and Moving Pointers Ideal
for Easy Operation and Monitoring
• Incorporating an easy-to-see large setting dial with moving
pointers.
• Wide time-setting range of 0.2 s to 60 h (available through three
time-range model types)
• Wide AC power supply range (100 to 240 VAC)
• IP65 watertight and dust-tight front panel.
• Approved by UL and CSA.
• Conforms to EN61812-1 and IEC60664-1
4 kV for Low Voltage, and EMC Directives.
• Conforms to EMC standards.
• Six-language instruction manual provided.
• Programmable contact enables the building of a self-holding
relay circuit as well as built-in instantaneous contact. (-NS)
• Memory retention (-NSR)
• Finger protection terminal block
• Enables easy sequence checks through instantaneous outputs
for a zero set value at any time range.
Model Number Legend
Ordering Information
■ List of Models
Note: The operation of the instantaneous contacts differs for the self-resetting and electric resetting systems. Refer to Timing Charts on page 5
for details.
H3AM - NS
12-3
-
1. Resetting System
None: Self-resetting
R: Electric resetting
3. Accessory
None: Without accessory
300: Waterproof Packing
(Y92S-35) provided
2. Time Range
A: 0.5 s to 30 h
B: 1 s to 60 h
C: 0.2 s to 12 h
Rated supply
voltage
Resetting
system
(See note.)
Control output Time range
0.5 s to 30 h (30 s, 3 min,
30 min, 3 h, 30 h)
1 s to 60 h (60 s, 6 min,
60 min, 6 h, 60 h)
0.2 s to 12 h (12 s, 120 s,
12 min, 120 min, 12 h)
100 to 240
VAC
Self-resetting DPDT contact output
(Time-limit output SPDT and
switchable SPDT
(time-limit
↔ instantaneous))
H3AM-NS-A H3AM-NS-B H3AM-NS-C
Electric
resetting
DPDT contact output
(Time-limit output SPDT and
instantaneous output SPDT)
H3AM-NSR-A H3AM-NSR-B H3AM-NSR-C
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2 Mechatronic Analog Timer H3AM
■ Accessory (Order Separately)
Note: Supplied with H3AM-NS@-@-300 models.
Specifications
■ General
■ Time Ranges
Note: Instantaneous output is obtained by turning the time setting knob below "0" until the time setting knob stops.
■ Ratings
Note: The minimum applicable load:
H3AM-NS: 10 mA at 5 VDC (failure level: P, reference value)
H3AM-NSR: 100 mA at 5 VDC (failure level: P, reference value)
Item Model
Waterproof Packing Y92S-35 (See note.)
Operating mode ON-delay
Screw tightening torque 0.98 N·m (10 kgf) max.
Input type Voltage input
Output type Relay: DPDT
Mounting method Flush/Panel mounting, no restriction on mounting angle.
Approved standards UL 508, CSA C22.2 No. 14
Conforms to EN61812-1, IEC60664-1 4 kV/2, VDE0106/P100
Output category according to IEC60947-5-1
Model Full scale on
dial
Set time unit
s 10 s min 10 min h (hour) 10 h (hour)
H3AM-@@@-A 3 --- 0.5 to 30 s 0.05 to 3 min 0.5 to 30 min 0.05 to 3 h 0.5 to 30 h
H3AM-@@@-B 6 --- 1 to 60 s 0.1 to 6 min 1 to 60 min 0.1 to 6 h 1 to 60 h
H3AM-@@@-C 12 0.2 to12 s 2 to 120 s 0.2 to 12 min 2 to 120 min 0.2 to 12 h ---
Rated supply voltage 100 to 240 VAC (50/60 Hz)
Operating voltage range 85% to 110% of rated supply voltage
Power reset (-NS) Minimum power-opening time: 0.5 s
Reset input time (-NSR) Minimum input time: 0.5 s
Reset voltage range (-NSR) H level: 85 to 264 VAC
L level: 0 to 10 VAC
Power consumption Approx. 9 VA (Approx. 5 W)
Control output Contact output: 5 A at 250 VAC, resistive load (cos
φ = 1)
Ambient temperature Operating: –10
°C to 55°C (with no icing)
Storage: –25
°C to 65°C (with no icing)
Ambient humidity Operating: 35% to 85%
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Mechatronic Analog Timer H3AM 3
■ Characteristics
Note: A separately sold waterproof packing (Y92S-35) is necessary to ensure IP65 waterproofing between the Timer and installation panel.
The H3AM-NS@-@-300 model with waterproof packing is available.
Accuracy of operating time
±0.7% FS max.
Setting error
±2% FS max.
Reset time Power reset: 0.5 s max.
Reset input time: 0.5 s max.
Influence of voltage
±1% FS max.
Influence of temperature
±2% FS max.
Insulation resistance 100 M
Ω max. (at 500 VDC)
Dielectric strength 2,000 VAC (50/60 Hz) for 1 min between exposed non-current-carrying metal parts and current-carrying metal parts
2,000 VAC (50/60 Hz) for 1 min between the operating circuit and control output terminals
1,000 VAC (50/60 Hz) for 1 min between the operating power supply circuit and reset input circuit (H3AM-NSR only)
1,000 VAC (50/60 Hz) for 1 min between contacts not located next to each other
2,000 VAC (50/60 Hz) for 1 min between contacts of opposite poles
Impulse withstand voltage 3 kV between power terminals
4.5 kV between exposed non-current-carrying metal parts and current-carrying metal parts
Noise immunity
±1.5 kV (between power terminals) square-wave noise by a noise simulator
(pulse width: 100 ns/1
µs, 1-ns rise)
Static immunity Malfunction: 8 kV
Destruction: 15 kV
Vibration resistance Destruction: 10 to 55 Hz, 0.75-mm single amplitude for 2 cycles each in 3 directions (8 min per cycle)
Malfunction: 10 to 55 Hz, 0.5-mm single amplitude for 2 cycles each in 3 directions (8 min per cycle)
Shock resistance
Destruction: 300 m/s
2
3 times each in 6 directions
Malfunction: 150 m/s
2
(100 m/s2 in the front/back direction) 3 times each in 6 directions
Life expectancy Mechanical: 5,000,000 times min. (under no load at 1,800 times/h)
Electrical: 100,000 times min. (5-A at 250 VAC, resistive load at 1,800 times/h)
Motor life expectancy 20,000 h
EMC (EMI): EN61812-1
Emission Enclosure: EN55011 class A
Emission AC Mains: EN55011 class A
(EMS): EN61812-1
Immunity ESD: IEC61000-4-2: 6 kV contact discharge
8 kV air discharge
Immunity RF-interference: IEC61000-4-3: 10 V/m (Amplitude-modulated, 80 MHz to 1 GHz)
10 V/m (Pulse-modulated, 900 MHz
±5 MHz)
Immunity Power Frequency Magnetic Fields: IEC61000-4-8: 30 A/m (50 Hz)
Immunity Conducted Disturbance: IEC61000-4-6: 10 V (0.15 to 80 MHz)
Immunity Burst: IEC61000-4-4: 2 kV power-line
2 kV I/O signal-line
Immunity Surge: IEC61000-4-5: 1 kV line to line
2 kV line to ground
Enclosure rating IP65 (front panel only) (See note.) IP20 (terminal section)
Weight Approx. 350 g
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4 Mechatronic Analog Timer H3AM
Nomenclature
Moving Pointer (green):
Displays remaining time.
Power Indicator
(green)
Setting pointer (orange)
Displays set value.
Time setting knob (set time)
Output Indicator (orange)
Time Unit Indicator
Instantaneous or
Time-limit Output Selector for
R2 Relay: (only for H3AM-NS-@
models)
Default setting is time-limit output.
Time Unit Selector
(Illustrated Model: H3AM-@@@-C)
Note: The scale goes up to "3" with the H3AM-@-A and up to "6" with the H3AM-@-B.
Model
Applicable time unit
Full
scale
on
dial
s 10 s min 10 min h 10 h
H3AM-@@@-A
H3AM-@@@-B
H3AM-@@@-C
3
6
12
No
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
Applicable Time Unit
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Mechatronic Analog Timer H3AM 5
Operations
■ Timing Charts
Power supply (1-2)
Time-limit contact NC (3-4, 7-8) (See note 1.)
Time-limit contact NO (3-5, 6-8) (See note 1.)
Power indicator (POWER)
Output indicator (UP)
Instantaneous contact NC (7-8) (See note 1.)
Instantaneous contact NO (6-8) (See note 1.)
tt
Rt
Power supply (1-2)
Time-limit contact NC (3-4)
Time-limit contact NO (3-5)
Instantaneous contact NC (7-8)
Instantaneous contact NO (6-8)
Power indicator (POWER)
Output indicator (UP)
Reset (9-10)
t
t'
t+t'
Rt' Rt'
Note: 1. The R2 contacts (7-8 and 6-8) are programmable and can be set to either instantaneous or time-limit
contacts using the switch located on the bottom of the Timer.
2. Rt is the reset time and t is the set time.
Note: t is the set time, Rt’ is the reset application time, and t’ is the power interruption time.
H3AM-NS
H3AM-NSR
Power supply (1-2)
Time-limit contact NC (3-4)
Time-limit contact NO (3-5)
Instantaneous contact NC (7-8)
Instantaneous contact NO (6-8)
Power indicator (POWER)
Output indicator (UP)
Reset (9-10)
t
t'
t+t'
Rt' Rt'
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6 Mechatronic Analog Timer H3AM
Dimensions
Note: All units are in millimeters unless otherwise indicated.
H3AM (Flush Mounting)
■ Accessories (Order Separately)
Waterproof Packing
(Provided with H3AM-NS@-@-300 models.)
Installation
■ Internal Connections and Terminal Arrangement
Note: The R2 relay can be switched between instantaneous and time-limit contacts and thus the contact symbol is shown as follows:
96
33
85
Four, M4x17.5 screw boss
20.1
46
7077.5 dia.
70
70
±
0.4
17.7 17.5
27.5 dia.
Four, 5-dia. holes
Mounting Holes
70±
0.4
96
81-dia. hole
Note: Tightening torque for panel mounting is as follows:
300 m N·m ±50 m N·m
Y92S-35
Note: Use Waterproof Packing to provide a level of water protection
that complies with IP65 standards.
Depending on the operating environment, the Waterproof
Packing may deteriorate, contract, or harden and so regular
replacement is recommended.
1
2
3
4
5
6
7
8
9
10
R1 R2
Power Supply
(See note)
1
2
3
4
5
6
7
8
9
10
R1 R2
Reset
Power
Supply
Use the same power source for the power supply and
reset input and wire the circuit so that the terminals (1)
and (10) terminals (2) and (9) become the same phase
respectively.
H3AM-NS H3AM-NSR
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Mechatronic Analog Timer H3AM 7
Safety Precautions
■ Precautions for Safe Use
Observe the following items to ensure the safe use of this product.
Environmental Precautions
• Store the H3AM within the specified ratings. If the H3AM has been
stored at temperatures –10
°C or lower, let it stand for 3 hours or
longer at room temperature before turning ON the power supply.
• Use the H3AM within the specified ratings for operating
temperature and humidity.
• Do not operate the H3AM in locations subject to sudden or extreme
changes in temperature, or locations where high humidity may
result in condensation.
• Do not use the H3AM in locations subject to vibrations or shock.
Extended use in such locations may result in damage due to stress.
• Do not use the H3AM in locations subject to excessive dust,
corrosive gas, or direct sunlight.
• Install the H3AM well away from any sources of static electricity,
such as pipes transporting molding materials, powders, or liquids.
• Do not use organic solvents (such as paint thinner or benzine),
strong alkaline, or strong acids because they will damage the
external finish.
Usage Precautions
• Install a switch or circuit breaker that allows the operator to
immediately turn OFF the power, and label it to clearly indicate its
function.
• Be sure to wire the terminals correctly.
• Do not install input lines in the same duct or conduit as power
supply or other high-voltage lines. Doing so may result in
malfunction due to noise. Separate the input lines from highvoltage lines.
• Internal elements may be destroyed if a voltage outside the rated
voltage is applied.
• Maintain voltage fluctuations in the power supply within the
specified range.
• Use a switch, relay, or other contact so that the rated power supply
voltage will be reached within 0.1 s. If the power supply voltage is
not reached quickly enough, the H3AM may malfunction or outputs
may be unstable.
■ Precautions for Correct Use
Changing Switch Settings
Be sure to adjust the time unit selector and instantaneous or timelimit 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.
Setting the Operating Time
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.
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.
Others
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
properties will not be achieved.
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 currentcarrying metal part of the machine, in order to prevent the internal
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 EN61812-1
Conformance
The H3AM as a built-in timer conforms to EN61812-1 provided that
the following conditions are satisfied:
The output section of the H3AM is provided only with basic isolation.
The H3AM itself is designed according to the following:
• Overvoltage category III
• Pollution degree 2
On the above basis:
Operation parts on the front and bottom: Reinforced isolation
With clearance of 5.5 mm and creepage distance of 5.5 mm at 240
VAC
Output: Basic isolation
With clearance of 3.0 mm and creepage distance of 3.0 mm at 240
VAC
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8
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. L095-E1-02
OMRON Corporation
Industrial Automation Company
Industrial Devices and Components Division H.Q.
Industrial Control Components Department
Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: (81)75-344-7119/Fax: (81)75-344-7149
Printed in Japan
1204-1.3C (0298) (M)
Warranty and Application Considerations
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or
other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT,
MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER
ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET
THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS,
OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON
CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE
PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,
INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE
MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of
products in the customer's application or use of the products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will
be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT
ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON
PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR
SYSTEM.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with
your OMRON representative at any time to confirm actual specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
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