KH Analog Series Action 1 Icsotimer

ON Delay Timer

The KH1 Analog Series on delay timer provides an on delay period between the application of input voltage and energizing a load. The timer is connected to a voltage source and a load. The on delay period begins when voltage is applied. The load remains de-energized until the end of the delay at which time it energizes. It remains energized as long as input voltage is present. When input voltage is removed, the load de-energizes and the timer is reset.
Typical application of the KH1 on delay timer is to configure a time delay relay by connecting the timer to a voltage source and a relay coil.
Fixed and Adjustable KH Series On Delay Timers

• Timing from .05 - 300 Seconds
• Reliable Analog Circuit
• Adjustable or Fixed Timing
• Miniature PC Board
• Thick Conformal Coating
• Printed Circuit Mounting

Table 1. Part Number Selection
Timer Action:
(1) On Delay
Time Range:
Standard Time
(1) .1 to 1 second
(2) .5 to 5 second
(7) 3 to 30 second
(4) 30 to 300 sec.
Nonstandard Time
(5) 1 to 10 second
(3) 5 to 50 second
(8) 6 to 60 second
(6) 12 to 120 sec.
(0) *Special Time

*Customer defined
Input Voltage:
(AC or DC)

Standard Voltage
(2) 24 VAC
(1) 120 VAC
(8) 12 VDC
(4) 24 VDC
Nonstandard Voltage
(7) 12 VAC
(5) 240 VAC
(6) 48 VDC
(3) 110 VDC
Selecting KH1 ON Delay Timer
Order Code Example:
KH = Analog Series Icsotimer
(1) = Timer Action = ON Delay
(2) = Timer Range = 0.5-5 Seconds
(5) = Input Voltage = 240 VAC

Note. For 120VAC and 24VDC units,
add suffix "A" to part number.
Example KH121A and KH124A.

KH On Delay Code Diagram
Options: Fixed and Special Time ranges from .05 seconds to 300 Seconds.
ON Delay Wiring Diagram

Note. Heatsink leads when soldering close to the module.
Table 2. Specifications
Output Voltage:
On-state voltage drop
Action 1 (AC) = 2.5 VRMS
Action 1 (DC) = 3.0 VDC
Output Current:
Action 1 = 100 ma.

Action 1 (AC or DC) = 10 ma.

Action 1 (AC or DC) = 0.4 ma.

Operating Parameters:
Repeat Accuracy
Fixed conditions = ±3%, ± 1 cycle for AC units. Overall variation = ±10%

Input voltage range
±20% for AC units
±20% @ 20% max. peak to peak ripple for DC units

Temperature range
-10 to +70 °C operating
-20 to +85 °C storage

Reset time
Action 1 ON Delay = 50 ms.
Typical Size (less leads):
Action 1 ON Delay
1.25"L x 0.6"W x 0.3" Thick
"A" Rev 1.25"L x 0.6"W x 0.4" Thick
22 AWG solid tinned copper leads 1.75" Long
American Flag

American Manufacturer

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