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H3T
H3T
149
Dimensions
Note:
All units are in millimeters unless otherwise indicated.
Note:
1. Terminal pitch: 2.54 mm
2. Conventional models with only a single time range do not
have terminals 4 and 5.
PCB Dimensions
(Top View)
Applicable socket: XR2A-2401-N
H3T
Eleven, 1.0 dia.
Installation
Internal Connections
When the input voltage is applied, the CR oscillator circuit in the timer receives current through the power circuits and begins oscillation. When
the value set in the timing circuit is counted, an output signal is generated. This signal is amplified by a transistor to operate the load. The voltage
created across the load is the input voltage minus the forward voltage drop of the transistor and diode.
Note:
1. A diode is connected internally to adsorb
surge voltage generated by the output relay.
2. Terminals 12 and 14 are internally connected.
3. There are no time range switching terminals
as there were on previous models.
(Top View)
Setting inputs
Power supply
Reset input
Time range
switching
Control output
Rated
voltage
Po
we
r
c
ir
cu
it
CR
oscillator
T
im
e
r
c
ir
cu
it
Output
cir
cuit
a
m
p
lifie
r
(See note
1)