LT4H-W
DIN 48 SIZE |
LT4H-W |
DIGITAL TIMER |
UL File No.: E122222
CSA File No.: LR39291
48
1.890
64.5
48 2.539
1.890
mm inch
8 Pin type |
11 Pin type Screw terminal |
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type |
FEATURES
1. Wide time range
The operation time range covers from 0.01 sec. to 9999 hours.
The individual setting can be performed on each of 1 and 2 timers.
99.99s |
99min59s |
99h59min |
999.9s |
999min |
999.9h |
9999s |
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9999h |
2.Bright and Easy-to-Read Display
A brand new bright 2-color back light LCD display. The easy-to-read screen in any location makes checking and setting procedures a cinch.
3.Simple Operation
Seesaw buttons make operating the unit even easier than before.
4. Short Body of only 64.5 mm 2.539 inch (screw terminal type) or 70.1 mm 2.760 inch (pin type)
With a short body, it is easy to install in even narrow control panels.
5.Conforms to IP66’s Weather Resistant Standards
The water-proof panel keeps out water and dirt for reliable operation even in poor environments.
6.Screw terminal and Pin Type are Both Standard Options
The two terminal types are standard options to support either front panel installation or embedded installation.
7.Changeable Panel Cover
Also offers a black panel cover to meet your design considerations.
8.Conforms With EMC and Low Voltage Directives
Conforms with EMC directives (EN50081-2/EN50082-2) and low -voltage directives (VDE0435/Part 2021) for CE certification vital for use in Europe.
9.Good performance
All this at an affordable price to provide you with unmatched cost performance.
PRODUCT TYPES
Time range |
Operation mode |
Output |
Operation voltage |
Power down insurance |
Terminal |
Part No. |
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8 pin |
LT4HW8-AC240V |
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100-240 V AC |
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11 pin |
LT4HW-AC240V |
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Screw |
LT4HW-AC240VS |
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8 pin |
LT4HW8-AC24V |
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Relay |
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24 V AC / 24 V DC |
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11 pin |
LT4HW-AC24V |
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(1 c) |
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Screw |
LT4HW-AC24VS |
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Pulse input: |
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99.99s |
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8 pin |
LT4HW8-DC24V |
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• Delayed one shot |
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999.9s |
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12-24 V DC |
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11 pin |
LT4HW-DC24V |
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• OFF-start flicker |
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9999s |
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• ON-start flicker |
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Screw |
LT4HW-DC24VS |
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99min59s |
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Available |
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999.9min |
Integrating input: |
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8 pin |
LT4HWT8-AC240V |
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99h59min |
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• Delayed one shot |
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100-240 V AC |
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11 pin |
LT4HWT-AC240V |
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999.9h |
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• OFF-start flicker |
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9999h |
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Screw |
LT4HWT-AC240VS |
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• ON-start flicker |
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8 pin |
LT4HWT8-AC24V |
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Transistor |
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24 V AC / 24 V DC |
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11 pin |
LT4HWT-AC24V |
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(1 a) |
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Screw |
LT4HWT-AC24VS |
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8 pin |
LT4HWT8-DC24V |
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12-24 V DC |
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11 pin |
LT4HWT-DC24V |
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Screw |
LT4HWT-DC24VS |
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* A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included.
44
02/2003
LT4H-W
PART NAMES
T1/T2 Operation display |
TIMER |
LT4H-W |
(Subtraction elapsed |
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time display) |
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Display for change-over |
T1 |
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Elapsed time display |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
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between T1/T2 settings |
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T2 |
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Set time display |
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T1 |
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Controlled output indicator |
OP. T2 |
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LOCK |
h m s |
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DIP switches
ON
Lock indicator |
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Time units display |
UP |
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RESET |
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Reset switch |
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Up keys |
SET/LOCK |
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Set/Lock switch |
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Down keys |
DOWN |
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Fourth digit |
First digit |
(Same for 8-pin and screw terminal type) |
SPECIFICATIONS
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Item |
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Ralay output type |
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Transistor output type |
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AC type |
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DC type |
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AC type |
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DC type |
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Operating voltage |
100 to 240 V AC, 24 V AC 1) |
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12 to 24 V DC |
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100 to 240V AC, 24V AC 1) |
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12 to 24 V DC |
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Frequency |
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50/60 Hz common |
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— |
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50/60 Hz common |
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— |
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Power consumption |
Max. 10 V A |
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Max. 3 W |
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Max. 10 V A |
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Max. 3 W |
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Control capacity (resistive) |
5 A, 250 V AC |
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100 mA, 30 V DC |
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Time range |
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99.99s, 999.9s, 9999s, 99min59s, 999.9min, 99h59min, 999.9h, 9999h (selected by DIP switch) |
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Time counting direction |
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Addition (UP)/Subtraction (DOWN) |
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(2 directions selectable by DIP switch) |
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Rating |
Operation mode |
Pulse input: Delayed one shot, OFF-start flicker or ON-start flicker |
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Integrating input: Delayed one shot, OFF-start flicker or ON-start flicker |
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Signal, Reset, Stop input |
Min. input signal width: 1 ms, 20 ms (2 directions by selected by DIP switch) |
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Lock input |
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Min. input signal width: 20 ms |
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Input signal |
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Open collector input Input impedance: Max. 1 kΩ; Residual voltage: Max. 2V |
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Open impedance: 100 kΩ or less, Max. energized voltage: 40 V DC |
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Indication |
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7-segment LCD, Elapsed value (backlight red LED), Setting value (backlight yellow LED) |
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Power failure memory |
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EEP-ROM (Min. 105 overwriting) |
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method |
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Time |
Operating time fluctuation |
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Operating voltage: 85% to 110% |
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Temperature error |
± (0.005% + 50 ms) in case of power on start |
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accuracy |
Temperature: –10°C to +55°C +14°F to +131°F |
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(max.) |
Voltage error |
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± (0.005% + 20 ms) in case of reset or input signal start |
[Min. input signal width: 1ms |
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Setting error |
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Contact arrangement |
Timed-out 1 Form C |
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Timed-out 1 Form A (Open collector) |
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Contact |
Initial contact resistance |
100 mΩ (at 1 A 6 V DC) |
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— |
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Contact material |
Ag alloy/Au flash |
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— |
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Life |
Mechanical |
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2.0 × 107 ope. (Except for switch operation parts) |
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— |
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Electrical |
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1.0 × 105 ope. (At rated control voltage) |
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1.0 × 107 ope. (At rated control voltage) |
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Operating voltage range |
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85 to 110 % of rated operating voltage |
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Initial breakdown voltage |
2,000 Vrms for 1 min: Between live and dead metal parts (11-pin type only) |
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2,000 Vrms for 1 min: Between live and dead metal parts (Pin type only) |
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2,000 Vrms for 1 min: Between input and output |
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2,000 Vrms for 1 min: Between input and output |
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1,000 Vrms for 1 min: Between contacts |
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Electrical |
Initial insulation resistance |
Between live and dead metal parts |
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Min. 100 MΩ: Between live and dead metal parts |
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Min. 100 MΩ: Between input and output |
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Between input and output |
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(At 500 V DC) |
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Between contacts |
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Operating voltage reset |
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Max. 0.5 s |
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time |
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Temperature rise |
Max 65° C (under the flow of nominal operating current at nominal voltage) |
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Vibration |
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Functional |
10 to 55 Hz: 1 cycle/ min single amplitude of 0.35 mm .014 inch (10 min on 3 axes) |
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Mechanical |
resistance |
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Destructive |
10 to 55 Hz: 1 cycle/ min single amplitude of 0.75 mm .030 inch (1 h on 3 axes) |
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Shock |
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Functional |
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Min. 98 m 321.522 ft./s2 (4 times on 3 axes) |
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resistance |
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Destructive |
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Min. 294 m 964.567 ft./s2 (5 times on 3 axes) |
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Ambient temperature |
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–10° C to 55° C +14° F to +131° F |
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Operating |
Ambient humidity |
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Max. 85 % RH |
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conditions |
Air pressure |
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860 to 1,060 h Pa |
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Ripple rate |
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— |
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20 % or less |
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— |
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20 % or less |
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Connection |
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8-pin/11-pin/screw terminal |
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Protective construction |
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IP66 (front panel with rubber gasket) |
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Note: 1) the 24 V AC type can be operated also with 24 V DC.
45
02/2003
LT4H-W
DIMENSIONS (units: mm inch)
• LT4H-W digital timer
Screw-down terminal type |
Pin type (embedded installation/ |
(embedded installation) |
front panel installation) |
48 |
5.5 |
64.5 |
5.5 |
55.6 |
14.5 |
1.890 |
.217 |
2.539 |
.217 |
2.189 |
.571 |
TIMER |
LT4H-W |
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T1 |
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T2 |
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T1 |
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44.5 |
44.5 |
OP. T2 |
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LOCK |
h m s |
1.752 |
1.752 |
RESET |
UP |
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SET/LOCK
DOWN
7.5 |
7.5 |
(Same for 8-pin type) |
.295 |
.295 |
• Dimensions for embedded installation (with adapter installed)
Screw-down terminal type |
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Pin type |
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Rubber gasket |
installation panel |
installation frame for |
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Rubber gasket |
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embedded installations |
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ATC18002 (supplied) |
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ATC18002 (supplied) |
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AT8-DA4 |
(supplied) |
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TIMER |
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LT4H-W |
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TIMER |
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LT4H-W |
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T1 |
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T1 |
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T2 |
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T2 |
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48 |
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T1 |
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44.5 |
48 |
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T1 |
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50 |
OP. |
T2 |
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50 |
66 |
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OP. |
T2 |
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1.890 |
LOCK |
h |
m |
s |
1.969 |
2.598 |
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1.752 |
1.890 |
LOCK |
h |
m |
s |
1.969 |
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RESET |
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UP |
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RESET |
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UP |
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SET/LOCK |
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SET/LOCK |
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DOWN |
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DOWN |
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48 |
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1 |
63.5 |
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48 |
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1 |
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1.890 |
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2.500 |
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1.890 |
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installation panel |
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installation frame for |
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8-pin type |
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embedded installations |
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(8p cap AD8-RC |
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AT8-DA4 (supplied) |
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sold separately) |
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11-pin type |
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(11p cap AT8-DP11 |
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sold separately) |
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66 |
2.598 |
90 |
3.543 |
• Dimensions for front panel installations
DIN rail terminal block (8-pin type ATC18003 sold separately)
(11-pin type ATC18004 sold separately)
Device installation rail AT8-DLA1
(sold separately)
95.5
(90.0)
3.760
(3.543)
( ) dimension is for 8-pin type.
• Installation panel cut-out dimensions
The standard panel cut-out dimensions are shown below. Use the installation frame (AT8-DA4) and rubber gasket (ATC18002).
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80min. |
45 +0.60 |
3.150min. |
1.772+.0240
45 +00.6
1.772+.0240
80min.
3.150min.
• For connected installations
45 +0.60
1.772+.0240
A
When n timers are continuously installed, the dimension
(A) is calculated according to the following formula (n: the number of the timers to be installed):
( × )+0.6 ( × )+.024
A= 48 n – 2.5 0 A= 1.890 n – .098 0
Note 1: The installation panel thickness should be between 1 and 5 mm .039 and .197 inch.
Note 2: For connected installations, the waterproofing ability between the unit and installation panel is lost.
TERMINAL LAYOUT AND WIRING
• 8-Pin type
Relay output type |
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Transistor output type |
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Signal |
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NC |
Signal |
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NO |
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Reset |
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Reset |
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4 |
5 |
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4 |
5 |
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3 |
6 |
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3 |
6 |
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2 |
7 |
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2 |
7 |
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1 |
8 |
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1 |
8 |
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(–) |
Operation |
(+) |
COM |
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(–) |
Operation |
(+) |
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voltage |
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voltage |
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• Screw terminal type |
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Relay output type |
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Transistor output type |
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Reset |
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Reset |
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Signal |
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Signal |
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Stop |
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Stop |
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Lock |
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COM |
Lock |
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6 |
7 |
8 |
9 |
10 |
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6 |
7 |
8 |
9 |
10 |
1 2 3 4 5 NO NC |
1 2 3 4 5 |
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Operation |
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Operation |
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(+) voltage |
(–) |
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(+) voltage |
(–) |
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• 11-Pin type |
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Relay output type |
Transistor output type |
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Reset |
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Reset |
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Signal |
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NC |
Signal |
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Stop |
5 |
6 7 |
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Stop |
5 |
6 7 |
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Lock |
8 |
NO |
Lock |
8 |
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4 |
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4 |
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3 |
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9 |
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3 |
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9 |
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2 |
10 |
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2 |
10 |
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1 |
11 |
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1 |
11 |
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(–) |
Operation |
(+) |
COM |
(–) |
Operation |
(+) |
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voltage |
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voltage |
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Note) For connecting the output leads of the transistor output type, refer to 5) Transistor output on page 40.
46
02/2003
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