H3T
H3T
146
Ratings
Rated supply voltage
12 or 24 VDC, permissible ripple: 5% max.
Switched by shorting and opening terminals.
Operating voltage range
12 V: 90% to 110% of rated voltage
24 V: 80% to 110% of rated voltage
Power consumption
12 V: Approx. 60 mW
24 V: Approx. 120 mW
Control output
Solid-state output: 100 mA
Voltage drop:
1.2 V max. (see note 2)
Note:
1. Residual voltage on reset input when shorted: 1.0 V.
2. Contact output switching capacity: 100 mA, but rated coil current of relay loads must be 75 mA or less.
Characteristics
Accuracy of operating time
!
2% max. (Percentage of FS value, including initial value)
Setting error
0% to 100% FS (Percentage of FS value)
Reset time
1 ms max. (including resets during operation)
Influence of voltage
!
2% max. (Percentage of FS value)
Influence of temperature
!
5% max. at --10
"
C to 70
"
C (Percentage of FS value)
Insulation resistance
100 M
$
min. (at 250 VDC)
Dielectric strength
500 VAC, 50/60 Hz for 1 min (between all terminals, knob and case)
Vibration resistance
Destruction: 10 to 55 Hz with 1.5-mm double amplitude
Malfunction: 10 to 55 Hz with 1.5-mm double amplitude
Shock resistance
Destruction: 1,000 m/s
2
(approx. 100G)
Malfunction: 1,000 m/s
2
(approx. 100G)
Ambient temperature
Operating: --10
"
C to 70
"
C (with no icing)
Storage:
--25
"
C to 80
"
C (with no icing)
Ambient humidity
Operating: 35% to 85%
Weight
Approx. 10 g
Operation
Time Specifications and Terminals
Model
Terminals
H3T-A
1 s
10 s
1 min
10 min
H3T-B
6 s
60 s
6 min
60 min
Note:
1. Short terminals 21 and 22 when using the internal adjustment (variable resistor) in the H3T.
2. An external resistor can be used by opening terminals 21 and 24. Connect the external resistor (2 M
$
for H3T-A and H3T-B) be-
tween terminals 21 and 24.