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QM4H Digital Timers(DIN 48)

Possible to set and change the time with front digit switches easily during the power off.
Furthermore single unit has a time range of 0.01s to 9990hrs!!

UL/C-UL , CE Approved

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1.Possible to set and change the time and the time range even when the power is off.

2.Selectable 8 different time ranges with front digit switches.

3.Low price.

4.[QM4H-S type]
It can select the mode with MODE switch.
T.D. MODE: Time delay 2C (2 Form C)
INST. MODE: Time delay 1C (1 Form C)
Instantaneous 1C (1 Form C)
[QM4H-G Type]
Reset and stop signal input enable to external control.

5.Compliant with UL/c-UL and CE.

 

Operation Mode

QM4H-S type
QM4H-pic03 QM4H-pic04

 

 

QM4H-G type
QM4H-pic05

*Set the reset inputs (1) to (3) and stop inputs (1) to (4) to 20 ms or higher.

*When shorting a signal, please set the inter-terminal resistance to 1 kohm or less, and the inter-terminal residual voltage to 2 V or less. When releasing, please set the inter-terminal resistance to 100 kohm or greater

Specifications

Item/Type QM4H-S QM4H-G
Rating Rated operating voltage 12 to 48 V AC/DC and 100 to 240 V AC/DC
Rated power consumption 12 to 48 V
AC/DC		 During time delay 12 V DC, 48 V DC: Max. 1.5W
12 V AC, 48 V AC: Max. 3.0 VA		 During time delay 12 V DC, 48 V DC: Max. 1.0W
12 V AC, 48 V AC: Max. 2.0 VA
After time delay 12 V DC, 48 V DC: Max. 2.5W
12 V AC, 48 V AC: Max. 5.0 VA		 After time delay 12 V DC, 48 V DC: Max. 1.5W
12 V AC, 48 V AC: Max. 3.5 VA
100 to 240 V
AC/DC		 During time delay 100 V DC, 240 V DC: Max. 1.5W
100 V AC, 240 V AC: Max. 3.0 VA		 During time delay 100 V DC, 240 V DC: Max. 1.0W
100 V AC, 240 V AC: Max. 2.5 VA
After time delay 100 V DC, 240 V DC: Max. 2.0W
100 V AC, 240 V AC: Max. 4.0 VA		 After time delay 100 V DC, 240 V DC: Max. 1.8W
100 V AC, 240 V AC: Max. 3.2 VA
Rated frequency 50/60 Hz common (at AC)
Rated control capacity 5 A, 250V AC (resistive load)
Time range 0.01s to 9990h, Selection of 8 range: 0.01s/0.1s/1s/0.1min/1min/0.1h/1h/10h
Operation mode Power ON delay Power ON delay (with reset and stop terminals)
Min. input signal width – 20ms (Reset and Stop inputs)*4
Time accuracy*1 Operating time fluctuation ±(0.01%+0.05s) in case of power on start
±(0.005%+0.03s) in case of input reset start*2
[Operating voltage: 85 to 110% V
Temperature: -10 to +55°C/ +14 to 131°F (20°C 68°F)
Stopped time: 0.1 sec to 1 hour]
Temperature error
Setting error
Voltage error
Contact Contact arrangement T.D. mode: Time delay 2C
INST. mode: Time delay 1C and Instantaneous 1C (Use MODE switch on front)		 Time delay 1C
Contact material Silver alloy
Life*3 Mechanical (contact) Min. 107
Electrical (contact) Min. 105 (at rated control vltage)
Electrical Allowable operating voltage range 85 to 110% of rated operating voltage
Breakdown voltage
(Initial value)		 Between live and dead metal parts, between input and output,
between contact sets, between contacts
Min. 100 MΩ (at 500 V DC megger)
Insulation resistance
(Initial value)		 Between live and dead metal parts: 2, 000 Vrms for 1 min
Between input and output: 2, 000 Vrms for 1 min
Between contact sets: 2, 000 Vrms for 1 min
Between contacts: 1, 000 Vrms for 1 min
Reset time Max. 0.1s
Mechanical Vibration resistance Functional 10 to 55 Hz: 1 cycle/min. single amplitude of 0.25 mm .010 inch (10 min on 3 axes)
Destructive 10 to 55 Hz: 1 cycle/min. single amplitude of 0.375 mm .015 inch (1h on 3 axes)
Shock resistance Functional 98 m/s2 (4 times on 3 axes)
Destructive 980 m/s2 (5 times on 3 axes)
Operating conditions Ambient temperature -10 °C to 55°C/ +14°F to +131°F
Ambient humidity Min. 35 to 85% RH (non-condensing)
Air pressure 860 to 1060 hPa
Others Mass (Weight) Approx. 130 g 4.59 oz Approx. 120 g 4.23 oz
Available standards UL, c-UL, CE
Operating display LED (red), During time delay: blinking, After time delay: OFF

 

  1. Unspecified measuring conditions are rated operating voltage (in case of DC type, ripple rate of 5% or less), ambient temp. 20℃ 68℉, and stop time 1 second.
  2. Reset start applies to QM4H-G type.
  3. Excluding switches
  4. Note that if the QM4H-G type is set to zero “0” and a STOP signal is input, output will begin when the power is turned on.
  5. The protective structure on the AQM4801 is IP50, and IP64 for the AQM4803.

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