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DIN HALF SIZE
HOUR METER
TH63·TH64
Hour Meters
57.5
2.264
24
.945
48
1.890
TH64 series (with reset button)
mm inch
TH63 series (without reset button)
RoHS Directive compatibility information
http://www.nais-e.com/
Features
1. Compact to save panel space
The 24 × 48 mm hour meters are just half the DIN 48 × 48 stan-
dard size. They help save the panel space.
UL File No.: E42876
CSA File No.: LR39291
2. Reset button
The hour meters can be reset to zero (TH64 series).
3. Wide-ranging measurement display
The measurement can be displayed from 0.1 hour up to
99999.9 hours (TH63 series). The dial size is the same as that
of 48 × 48 DIN size hour meters (TH14 and TH24 series).
4. Easy to install
The flat terminals (#187) are used for easier wiring. There is no
need to undo the lock spring.
5. High-performance sync motor with 50/60 Hz selector
The noise-resistant, accurately turning motor is employed to
provide for longer period of measurement. The power frequency
can be selected for 50 or 60 Hz.
6. Rotary indicator
The rotary indicator makes one turn every 72 seconds for moni-
toring.
7. Compliant with UL, CSA and CE.
Typical applications
Management of small generators and food processing
machines; hour counting for leased equipment; maintenance
management of various equipment, etc.
Specifications
Rated operating voltage
Allowable operating voltage range
Rated frequency
Counting range
Minimum time display
Rated power consumption
Insulation resistance (Initial value)
Breakdown voltage (Initial value)
Max. temperature rise
Vibration resistance
Functional
Shock resistance
Functional
Destructive
Ambient temperature
Ambient humidity
Weight
12 V AC, 24 V AC, 48 V AC, 100 V AC, 110 V AC, 115 to 120 V AC, 200 V AC, 220 V AC, 240 V AC
85 to 115% of rated operating voltage
50/60 Hz (selectable by switch)
0 to 99999.9 hours (TH63 series)
0 to 9999.9 hours (TH64 series)
0.1 hours (6 min)
Approx. 1.5 W
Min. 100 M, Between live and dead metal parts (At 500 V DC)
2,000 Vrms, Between live and dead metal parts
55°C 131°F
10 to 55 Hz: 1 cycle/min double amplitude of 0.5 mm (10 min on 3 axes)
Min 98 m/s2 {10 G} (4 times on 3 axes)
Min 980 m/s2 {100 G} (5 times on 3 axes)
–10 to +50°C +14 to +122°F
Max. 85% RH (non-condensing)
Approx. 80 g 2.82 oz
Product types
Type
Operating voltage Part number Operating voltage Part number Operating voltage Part number
TH63 series
(without reset button)
100V AC
200V AC
12V AC
TH631
TH632
TH633
24V AC
48V AC
110V AC
TH634
TH635
TH636
115 to 120V AC
220V AC
240V AC
TH637
TH638
TH639
TH64 series
(with reset button)
100V AC
200V AC
12V AC
TH641
TH642
TH643
24V AC
48V AC
110V AC
TH644
TH645
TH646
115 to 120V AC
220V AC
240V AC
TH647
TH648
TH649
Notes) 1. Only the metallic-looking (silver) panel mounting type is available.
2. Standard products are UL-recognized as well as CSA-certified. There is no need to add “U” at the end of the part number. Just specify the
standard part number when ordering.
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Applicable standard
Safety standard
EN61010-1
(EMI)EN61000-6-4
Radiation interference electric field strength
Noise terminal voltage
(EMS)EN61000-6-2
Static discharge immunity
EMC
RF electromagnetic field immunity
EFT/B immunity
Surge immunity
Conductivity noise immunity
Power frequency magnetic field immunity
Voltage dip/Instantaneous stop/Voltage fluctuation immunity
Dimensions
Reset button (only for TH64 type)
Rotary indicator
24
.945
HOUR METER
TH63·TH64
Pollution Degree 2/Overvoltage Category II
EN55011 Group1 ClassA
EN55011 Group1 ClassA
EN61000-4-2 4 kV contact
8 kV air
EN61000-4-3 10 V/m AM modulation (80 MHz to 1 GHz)
10 V/m pulse modulation (895 MHz to 905 MHz)
EN61000-4-4 2 kV (power supply line)
EN61000-4-5 1 kV (power line)
EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz)
EN61000-4-8 30 A/m (50 Hz)
EN61000-4-11 10 ms, 30% (rated voltage)
100 ms, 60% (rated voltage)
1,000 ms, 60% (rated voltage)
5,000 ms, 95% (rated voltage)
mm inch
General tolerance: ±0.5 ±.020
Frequency selector lever
No.187 quick
connect terminal
48
1.890
4.5
.177
53
2.087
66
2.598
Wiring diagram
M
Operating power supply
• Panel cutout dimensions
22.2
+0.3
0
.874
+.012
0
45
+0.6
0
1.772
+.024
0
R0.5 or less
Panel (thickness:
1 to 9 mm .039 to .354 inch)
For panel thickness of
5 to 9 mm .197 to .354 inch)
mm inch
Mounting spring
(included)
Mounting
1.
Cut
a
22.2
+0.3
0
×
45
+0.6
0
mm (.874+.0012
×
1.772
+.024
0
inch) opening in the panel.
2. Swing the mounting spring to the rear
of the hour meter and fit the hour
meter into the panel opening. (There
is no need to detach the mounting
spring from the hour meter.) If the
panel is 5 to 9 mm .197 to .354 inch
thick, move the mounting spring to the
other hole toward the rear of the hour
meter.
3. Swing the mounting spring to the front
of the hour meter to secure the hour
meter to the panel.
4. Wire the supplied quick connectors
and connect to the hour meter. Be
sure to use the supplied insulating
sleeves to cover the connectors.
Fasten
Unfasten
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