4 Solid-state Timer H3BA-N
■ Characteristics
Note: For setting the time-limit of the Timer to a cycle of less than 3 seconds or applying the forced reset, use the H3BA-N in mode D (signal OFF-
delay).
Nomenclature
H3BA-N H3BA-N8H
Item H3BA-N H3BA-N8H
Accuracy of operating time
±0.3% FS max. (±0.3%±10 ms in a range of 1.2 s)
Setting error
±5% FS ±0.05 s max.
Reset time Min. power-opening time: 0.1 s max.
Min. pulse-input time: 50 ms
Influence of voltage
±0.5% FS max. (±0.5%±10 ms in a range of 1.2 s)
Influence of temperature
±2% FS max. (±2%±10 ms in a range of 1.2 s)
Insulation resistance 100 M
Ω min. (at 500 VDC)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and exposed non-current-carrying metal
parts
2,000 VAC, 50/60 Hz for 1 min between control output terminals and operating circuit
1,000 VAC, 50/60 Hz for 1 min between contacts not located next to each other (750 VAC for H3BA-N8H)
Impulse withstand voltage 1 kV (between power terminals)
2 kV (between current-carrying terminal and exposed non-current-carrying metal parts,
1.5 kV for 24-VDC models)
Noise immunity AC models:
±1.5 kV (between power terminals), and ±600 V (between input terminals),
square-wave noise by noise simulator (pulse width: 100 ns/1
µs, 1-ns rise)
DC models:
±480 V (between power terminals), and ±600 V (between input terminals),
square-wave noise by noise simulator (pulse width: 100 ns/1
µs, 1-ns rise)
Static immunity Malfunction: 4 kV
Destruction: 8 kV
Vibration resistance Destruction: 10 to 55 Hz with 0.75-mm single amplitude each in three directions
Malfunction: 10 to 55 Hz with 0.5-mm single amplitude each in three directions
Shock resistance
Destruction: 1,000 m/s
2
(approx. 100G) each in three directions
Malfunction: 100 m/s
2
(approx. 10G) each in three directions
Ambient temperature Operating: –10
°C to 55°C (with no icing)
Storage: –25
°C to 65°C (with no icing)
Ambient humidity Operating: 35% to 85%
Life expectancy Mechanical: 20 million operations min. (under no load
at 1,800 operations/h)
Electrical: 100,000 operations min. (5 A at 250 VAC,
resistive load at 1,800 operations/h)
Mechanical: 10 million operations min. (under no
load at 1,800 operations/h)
Electrical: 100,000 operations min. (5 A at 250
VAC, resistive load at 360 operations/h)
Case color Light gray (Munsell 5Y7/1)
Enclosure ratings IEC: IP40 (panel surface)
Weight Approx. 95 g
H3BA
UP
PW
MODE
A
sec
0
1
2
3
0.5
2.5
1.5
Power Indicator (Green):
Lit when Timer operates.
Operating Mode Display Window
Operating Mode Selector:
Select a mode from
A, B, B2, C, D, and E
Scale Range Display
Windows
Time Unit Selector
Select a unit from
sec, min, hrs, and 10h.
Time setting knob (set time)
Output Indicator (Orange):
Lit when Timer outputs.
Time Range Selector:
Select one from
1.2, 3, 12, and 30.
H3BA
UP
PW
MODE
A
sec
0
1
2
3
0.5
2.5
1.5
Power Indicator (Green):
Lit when Timer operates.
Output Type Display Window
Output Type Selector:
Select a type from A
and H
A: Time-limit DPDT
(default setting)
H: Time-limit SPDT and
instantaneous SPDT
Scale Range Display
Windows
Time Unit Selector
Select a unit from sec,
min, hrs, and 10 h.
Time setting knob (set time)
Output Indicator (Orange):
Lit when Timer outputs.
Time Range Selector:
Select one from
1.2, 3, 12, and 30.
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