Datasheet
123
DIN HALF SIZE
HOUR METER
TH63·TH64
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.
2. Reset button
The hour meters can be reset to zero (TH64).
24
.945
48
1.890
57.5
2.264
TH64 (with reset function)
mm inch
TH63 (without reset function)
3. Wide-ranging measurement display
The measurement can be displayed from 0.1 hour up to
99999.9 hours (TH63). 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
NAiS’s original moire pattern mechanism helps watch the rotary
indicator for quick monitoring (one turn every 72 seconds).
7. CE marking
The hour meters satisfy EMC directives (EN50081-2/
EN50082-2) and low-voltage directives (EN61010-1).
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 12 V AC, 24 V AC, 48 V AC, 100 V AC, 115 to 120 V AC, 200 V AC, 220 V AC, 240 V AC
Operating voltage range 85 to 115% of rated operating voltage
Rated frequency 50/60 Hz (selectable by switch)
Counting range
0 to 99999.9 hours (TH63 series)
0 to 9999.9 hours (TH64 series)
Minimum time display 0.1 hours (6 min)
Rated power consumption Approx. 1.5 W
Initial insulation resistance (At 500 V DC)
Min. 100 MΩ Between live and dead metal parts
Initial breakdown voltage 2,000 Vrms Between live and dead metal parts
Max. temperature rise 55°C 131°F
Vibration resistance Functional 10 to 55 Hz: 1 cycle/min double amplitude of 0.5 mm (10 min on 3 axes)
Shock resistance
Functional Min 98 m/s
2
{10 G} (4 times on 3 axes)
Destructive Min 980 m/s
2
{100 G} (5 times on 3 axes)
Ambient temperature –10 to +50°C +14 to +122°F
Ambient humidity Max. 85% RH
Weight Approx. 80 g 2.82 oz
PRODUCT TYPE
Type Rated operating voltage Part No.
TH63 types
(without reset)
100V AC TH631
200V AC TH632
12V AC TH633
TH64 types
(with reset)
100V AC TH641
200V AC TH642
12V AC TH643
Rated operating voltage Part No.
24V AC TH634
48V AC TH635
110V AC TH636
24V AC TH644
48V AC TH645
110V AC TH646
Rated operating voltage Part No.
115 to 120V AC TH637
220V AC TH638
240V AC TH639
115 to 120V AC TH647
220V AC TH648
240V AC TH649
Notes: 1. Only the metallic-looking 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 No. Just specify the stan-
dard part No. when ordering.
3. If you want the CE marking on your products, specify “CE” at the end of the part No. when ordering.
TH63·TH64
02/2003


