OP41, OP42 & OP43 TDR Series Octal Plug-In

Time Delay Relay

The ICS OP4 Series time delay relay offers either an on, off, or interval time delay in a self-contained enclosure. The base configuration for the OP41/43 relay is 8 pin octal plug-in and the OP42 relay is 11 pin round plug-in. Both include DPDT Form C contacts.
Available in standard and nonstandard voltages and time delay ranges, the OP4 can be used in many applications requiring a time delay relay. Use the table below to select your relay action, time range, and input voltage. In addition to the listed values, special or custom time delay ranges are also available. *The OP4 TDR Series also includes the recycle timer relay.
op4 series time delay relay

• Enclosed Octal Plug-In Base
• LED Relay Operation Indicator
• Variable Time Delay Adjustment
• Heavy Duty Long Life Relay
• Ranges from .1 Second to 300 Seconds
• Thick Film Hybrid Timing Element

Table 1. Part Number Selection
Relay Actions:
(1) On Delay
(2) Off Delay
Time Ranges:
Standard Time
(1) .1 to 10 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 Voltages:
(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 OP4 Series Time Delay Relay
Order Code Example:
OP4 1 2 N 1
(1) On Delay
(2) .5 to 5 sec.
(1) 120 Volt AC


Order Code Example:
OP4 2 0 N 8
(2) Off Delay
(0) *15 sec. Fixed
(8) 12 Volt DC



OP4 Time Delay Relay Code
Options. Fixed and special time delay ranges from .05 second to 10 hour.


time delay relay schematic


off delay relay wiring diagram

Wiring Diagrams: Bottom view of plug-in bases.


Table 2. Specifications
Input Current:
Idle (Actions 2 and 3 only) = 4 ma.
Operating = 2 VA.
Control Switch (Action 2 only) = 4 ma.
Output Relay:
DPDT Contacts Rating
10 Amps resistive or 1/3 HP @ 120 VAC
Operating Parameters:
Repeat Accuracy
Fixed Conditions = ±3%, ±1 cycle for AC units.
Overall variation = ±10%

Input voltage range
±10% for AC units
±10% @ 20% max. pp. ripple for DC units

Temperature range
-10º to 70º C operating
-20º to 85º C storage

Reset time
Action 1 = 50 ms.
Actions 2 and 3 = 150 ms.

Initiate time (Control Switch)
Action 2 = 50 ms.
Size (above sockets):
2.0" sq. x 4.0" High
Termination:
Actions 1 and 3 = 8 pin octal plug-in base
Action 2 = 11 pin round plug-in base
ICS, A Unit of QCircuits Inc.
2775 Algonquin Road Suite 300
Rolling Meadows, Illinois 60008

TEL: 847-797-6678
www.ics-timers.com
FAX: 847-797-7418

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