Digital Timer H5CZ

Better Readability

Character Height of 10 mm with a Wide Viewing Angle.

The Easiest Operation

Operation is simplified by the Up/Down Keys for each digit on 4-digit.

Isolated Power Supply and Input Circuits *

Power supply circuit and input circuits are isolated for safety and reliability.
Previous non-isolated timers had wiring restrictions and could be damaged if wired incorrectly. The H5CZ removes these worries.

Set Value Limit

You can set an upper limit for the set value to prevent unexpected operation of output devices caused by setting mistakes.

Output Counter

The output counter counts the number of times the output turns ON (alarm display, count monitoring, count in increments of 1,000). This counter is useful in managing the service life of the Timer or the load.

Other Features

Models with Instantaneous Contact Output

Models with instantaneous contact outputs have been added for use with self-holding circuits and as auxiliary relays. These models are also convenient when replacing analog timers.

Waterproof, Dust-proof Structure (UL508 Type 4X and IP66)

Worry-free application is possible in locations subject to water.
Note: When the Y92S-29 Waterproof Packing is used.

Key Protection

Select from any of seven protection patterns. Use the best one for the application.

New Modes

Modes, such as a stopwatch mode (Mode S), have been added.
Select any of 15 modes.



Categories: , Tag:




Models H5CZ-L8[]
Ratings Power supply
voltage *1
100 to 240 VAC 50/60 Hz
12 to 24 VDC/24 VAC 50/60 Hz
Operating voltage
fluctuation range
85% to 110% of rated supply voltage (90% to 110% at 12 to 24 VDC)
Power consumption Approx. 6.2 VA at 100 to 240 VAC, Approx. 5.1 VA/2.4 W at 24 VAC/12 to 24 VDC *2
Mounting method Flush mounting, Surface mounting, DIN track mounting
External connections 8-pin socket
Degree of protection IEC IP66, UL508 Type 4X (indoors) for panel surface only and when Y92S-29
Waterproof Packing is used 4 digits
Time ranges 0.001 s to 9.999 s, 0.01 s to 99.99 s, 0.1 s to 999.9 s, 1 s to 9999 s, 1 s to 99 min
59 s
0.1 m to 999.9 min, 1 min to 9999 min, 1 min to 99 h 59 min, 0.1 h to 999.9 h, 1 h
to 9999 h
Timer mode Elapsed time (Up), Remaining time (Down) (selectable)
Inputs Input signals Signal, Reset
(no inputs on models with instantaneous contact outputs)
Input method No-voltage Input
ON impedance: 1 kΩ max. (Leakage current: 12 mA when 0 Ω )
ON residual voltage: 3 V max.
OFF impedance: 100 kΩ min.
Signal, reset Minimum input signal width: 1 or 20 ms (selectable, same for all input)
Reset system Power reset (depending on output mode), External reset, Manual reset, Automatic
reset (depending on output mode)
Power reset Minimum power-opening time: 0.5 s (except for A-3, b-1, F, ton-1, and toff-1
Reset voltage 10% max. of rated supply voltage
Sensor waiting time 250 ms max. (Control output is turned OFF and no input is accepted during sensor
waiting time.)
Output Output modes A: Signal ON Delay I, A-1: Signal ON Delay
II, A-2: Power ON Delay I, A-3: Power ON
Delay II, b: Repeat Cycle 1, b-1: Repeat
Cycle 2, d: Signal OFF Delay, E: Interval, F:
Cumulative, Z: ON/OFF-duty-adjustable
flicker, S: Stopwatch, toff: Flicker OFF
Start 1, ton: Flicker ON Start 1, toff-1:
Flicker OFF Start 2, ton-1: Flicker ON
Start 2
Models with Instantaneous Contact
A-2: Power ON Delay I, b: Repeat Cycle
1, E: Interval, Z: ON/OFF-duty-
adjustable flicker, toff: Flicker OFF Start
1, ton: Flicker ON Start 1
One-shot output time 0.01 to 99.99 s
Control output 5 A at 250 VAC/30 VDC, resistive load (cos =1)
Minimum applied load: 10 mA at 5 VDC (failure level: P, reference value)
Contact materials: AgSnIn
Display method *3 LCD; Present value: 10-mm-high characters
Set value: 6-mm-high characters
Memory backup EEPROM (overwrites: 100,000 times min.) that can store data for 10 years min.
Operating temperature range -10 to 55°C (-10 to 50°C if counters are mounted side by side) (with no icing or
Storage temperature range -25 to 70°C (with no icing or condensation)
Operating humidity range 25% to 85%
Front panel color Light gray (5Y7/1)



*1. Do not use the output from an inverter as the power supply. The ripple must be 20% maximum for DC power.
*2. Inrush current will flow for a short time when the power supply is turned ON.
Inrush Current (Reference Values)



Voltage Applied voltage Inrush current (peak value) Time
100 to 240 VAC 264 VAC 5.3 A 0.4 ms
12 to 24 VDC/24 VAC 26.4 VAC 6.4 A 1.4 ms
26.4 VDC 4.4 A 1.7 ms


*3. The display is lit only when the power is ON. Settings and changes are not possible if the power supply is not ON.



Accuracy of operating
time and setting error
(including temperature
and voltage influences)
Power-ON start: ±0.01% ±50 ms max. *1
Signal start: ±0.005%±0.03 ms max. *1
If the set value is within the sensor waiting time at startup the control
output of the H5CZ will not turn ON until the sensor waiting time passes.
Insulation resistance 100 MΩ min. (at 500 VDC) between current-carrying terminal and exposed non-current-carrying metal parts, and between non-continuous contacts
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and non-current-carrying metal parts
2,000 VAC, 50/60 Hz for 1 min between power supply and input circuits (H5CZ-L8 only)
2,000 VAC, 50/60 Hz for 1 min between control output, power supply, and input circuits (for all models except H5CZ-L8E[])
1,000 VAC, 50/60 Hz for 1 min between non-continuous contacts
Impulse withstand voltage 5 kV (between power terminals) for 100 to 240 VAC, 1 kV for 24 VAC/12 to 24 VDC
5 kV (between current-carrying terminal and exposed non-current-carrying metal
parts) for 100 to 240 VAC 1.5 kV for 24 VAC/12 to 24 VDC
Noise immunity ±1.5 kV (between power terminals) and ±600 V (between input terminals (for all models except H5CZ-L8E[])), square-wave noise by noise simulator (pulse width: 100 ns/1 μs, 1-ns rise)
Static immunity Malfunction: 8 kV
Destruction: 15 kV
Destruction 10 to 55 Hz with 0.75-mm single amplitude each in three directions for 2 h each
Malfunction 10 to 55 Hz with 0.35-mm single amplitude each in three directions for 10 min each
Destruction 300 m/s2 in three directions, three cycles
Malfunction 100 m/s2 in three directions, three cycles
Mechanical 10,000,000 operations min. (under no load at 1,800 operations/h and ambient
temperature of 23°C)
Electrical 100,000 operations min. (5 A at 250 VAC, resistive load at 1,800 operations/h and
ambient temperature of 23°C) * 2
Weight Approx. 105 g (Timer only)


*1. The values are based on the set value.
*2. Refer to Life-test Curve.

Life-test Curve (Reference Values)

H5CZ Specifications 7

A maximum current of 0.15 A can be switched at 125 VDC (cosφ =1) and a maximum current of 0.1 A can be switched if L/R is 7 ms. In both cases, a life of 100,000 operations can be expected.

Applicable Standards


Approved safety standards UL508/Listing, UL50 Type 4X for indoor use (enclosure rating), CSA C22.2 No. 14 *1,
conforms to EN61812-1 (Pollution degree 2/overvoltage category III)
1/4 HP 120 VAC, 1/3 HP, 240 VAC, 5 A resistive load
CCC: GB/T 14048.5 Pollution degree 2, Overvoltage category III *2
EMC (EMI) EN61812-1
Emission Enclosure: EN55011 Group 1 class A
Emission AC mains: EN55011 Group 1 class A
(EMS) EN61812-1
Immunity ESD: IEC61000-4-2
Immunity RF-interference: IEC61000-4-3
Immunity Burst: IEC61000-4-4
Immunity Surge: IEC61000-4-5
Immunity Conducted Disturbance: IEC61000-4-6
Immunity Voltage Dip/Interruption: IEC61000-4-11



*1. The following safety standards apply to H5CZ.
cUL (Listing): Applicable when an OMRON P2CF (-E) Socket is used.
cUR (Recognition): Applicable when any other socket is used.
*2. CCC certification requirements



Rated operating voltage Ue
Rated operating current Ie
AC-15: Ue: 250 VAC, Ie: 3 A
AC-13: Ue: 250 VAC, Ie: 5 A
DC-13: Ue: 30 VDC, Ie: 0.5 A
Rated insulation voltage 250 V
Rated impulse withstand voltage
(altitude: 2,000 m max.)
4 kV (at 240 VAC)
Conditional short-circuit current 1000 A


I/O Functions

For details, refer to the timing charts on Data Sheet.


Inputs * Start signal Normally functions to start timing.
In modes A-2 and A-3, disable timing. In mode S, starts and stops timing.
Reset • Resets present value. (In elapsed time mode, the present value returns to 0; in remaining time
mode, the present value returns to the set value.)
• Count inputs are not accepted and control output turns OFF while reset input is ON.
• Reset indicator is lit while reset input is ON.
Outputs Control output
Outputs take place according to designated operating mode when timer reaches corresponding set value.


There are no reviews yet.

Be the first to review “Digital Timer H5CZ”

Your email address will not be published. Required fields are marked *