What are Time Delay Relays ?
Time Delay Relays are electromechanical devices that delay the operation of a circuit based on a predetermined time interval. They are widely used in applications such as switching and control panels, production electronics assembly, and maintenance tasks. Important specifications for selection include Delay Time, which determines the timing accuracy; Contact Rating @ Voltage, which ensures the relay can handle the required load; and Relay Type, which affects the relay's operational characteristics. Validating lifecycle status and alternate-source options is essential for procurement teams to mitigate sourcing risks.
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| Part & Mfr | Circuit | Contact Rating @ Voltage | Delay Time | Function | Mounting Type | Relay Type | Termination Style | Timing Adjustment Method | Timing Initiate Method | Voltage | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Littelfuse Inc.
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SPST-NO (1 Form A) | - | 0.5 Sec ~ 60 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 24VAC | |
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Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 300 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 0.5 Sec ~ 60 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 5 Sec ~ 600 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 0.5 Sec ~ 60 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 230VAC | |
|
Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 5 Sec ~ 600 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 230VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 1 Sec ~ 100 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 0.1 Min ~ 10 Min | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 180 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 230VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 1 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 230VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 1 Sec ~ 100 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 230VAC | |
|
Littelfuse Inc.
|
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- | - | 1 Min ~ 100 Min | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 120VAC | |
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Omron
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SPDT (1 Form C) | 5A @ 250VAC | 0.1 Sec ~ 1200 Hrs | On-Delay | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 12VDC | |
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Omron
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SPDT (1 Form C) | 5A @ 250VAC | 0.1 Sec ~ 1200 Hrs | On-Delay | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
Altech Corporation
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- | - | - | - | - | - | - | - | - | - | |
Schneider Electric
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- | - | 3 Sec ~ 60 Sec | Programmable (Multi-Function) | Panel Mount | Timer Only, Relay Not Included | Screw Terminal | - | Input Voltage | 110 ~ 230VAC/DC | |
Schneider Electric
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- | - | 0.5 Min ~ 10 Min | Programmable (Multi-Function) | Panel Mount | Timer Only, Relay Not Included | Screw Terminal | - | Input Voltage | 110 ~ 230VAC/DC | |
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Siemens
|
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SPDT (1 Form C) | 3A @ 250VAC | 0.05 Sec ~ 100 Hrs | On-Delay | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 90 ~ 127VAC/DC | |
Panasonic Electronic Components
|
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DPDT (2 Form C) | 5A @ 250VAC | 0.1 Sec ~ 500 Hrs | Repeat Cycle, Twin Timer | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 100 ~ 240VAC | |
Autonics
|
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SPDT (1 Form C) | 3A @ 250VAC | 0.01 Sec ~ 9990 Hrs | Programmable (Multi-Function) | Panel Mount | - | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | - | 24 ~ 240VAC/DC | |
Autonics
|
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SPDT (1 Form C) | 5A @ 250VAC | 0.01 Sec ~ 9990 Hrs | Programmable (Multi-Function) | Panel Mount | - | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | - | 24 ~ 240VAC/DC | |
NTE Electronics
|
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- | - | 0.3 Min ~ 10 Min | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Hand Dial | - | 120VAC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 10A @ 125VAC | 0.1 Sec ~ 10 Sec | Off-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 12VDC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 10A @ 125VAC | 0.1 Min ~ 10 Min | One Shot | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 120VAC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 10A @ 125VAC | 1 Sec ~ 100 Sec | Off-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 120VAC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 10A @ 125VAC | 1 Sec ~ 100 Sec | One Shot | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 24VAC/DC | |
Aim Dynamics
|
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SPDT (1 Form C) | 8A @ 250VAC | 0.05 Sec ~ 100 Hrs | Repeat Cycle | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage, Trigger Signal | 12 ~ 240VAC/DC | |
NTE Electronics
|
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DPDT (2 Form C) | 12A @ 120VAC/28VDC | - | Off-Delay | - | Mechanical Relay | Quick Connect - 0.187" (4.7mm) | - | - | 120VAC | |
Macromatic Industrial Controls
|
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SPDT (1 Form C) | 10A @ 240VAC/30VDC | 0.05 Sec ~ 100 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 24 ~ 240VAC, 12 ~ 125VDC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 30A @ 125/240VAC | 1 Sec ~ 100 Sec | One Shot | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 24VDC | |
|
TE Connectivity
|
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- | - | - | - | - | - | - | - | - | - | |
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Littelfuse Inc.
|
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Price on request
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SPDT (1 Form C) | 30A @ 125/240VAC | 1 Min ~ 100 Min | Off-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 12VDC | |
|
Littelfuse Inc.
|
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SPDT (1 Form C) | 30A @ 125/240VAC | Fixed, 12 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 24VDC | |
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Littelfuse Inc.
|
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SPDT (1 Form C) | 30A @ 125/240VAC | 0.1 Sec ~ 10 Sec | One Shot | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 12VDC | |
Macromatic Industrial Controls
|
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.05 Sec ~ 10230 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 11 Pin (Octal) | DIP Switches | Input Voltage | 120VAC/DC | |
Siemens
|
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SPDT (1 Form C) | 3A @ 250VAC | 1.5 Sec ~ 30 Sec | On-Delay | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | - | 12 ~ 240VAC/DC | |
Siemens
|
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SPDT (1 Form C) | 3A @ 250VAC | 0.5 Sec ~ 10 Sec | On-Delay | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | - | 12 ~ 240VAC/DC | |
|
Littelfuse Inc.
|
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Price on request
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SPST-NO (1 Form A) | - | 0.1 Sec ~ 10 Sec | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 12VDC | |
|
Littelfuse Inc.
|
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DPDT (2 Form C) | 10A @ 120/240VAC | 0.6 Sec ~ 60 Sec | Interval | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Hand Dial | Input Voltage | 120VAC | |
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Littelfuse Inc.
|
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DPDT (2 Form C) | 10A @ 120/240VAC | 0.1 Sec ~ 5 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Hand Dial | Input Voltage | 24VAC | |
NTE Electronics
|
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DPDT (2 Form C) | 10A @ 120VAC/30VDC | - | On-Delay | - | Mechanical Relay | Plug In, 8 Pin (Octal) | - | - | 24VDC | |
NTE Electronics
|
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DPDT (2 Form C) | 10A @ 120VAC/30VDC | - | On-Delay | - | Mechanical Relay | Plug In, 8 Pin (Octal) | - | - | 120VAC | |
NTE Electronics
|
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DPDT (2 Form C) | 10A @ 120VAC/30VDC | - | On-Delay | - | Mechanical Relay | Plug In, 8 Pin (Octal) | - | - | 24VDC | |
|
TE Connectivity
|
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- | - | - | - | - | - | - | - | - | - | |
Macromatic Industrial Controls
|
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.05 Sec ~ 30 Min | Off-Delay | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 120VAC/DC | |
|
Littelfuse Inc.
|
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Price on request
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SPST-NO (1 Form A) | - | Fixed, 90 FPM | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 24VDC | |
Macromatic Industrial Controls
|
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.05 Sec ~ 100 Hrs | Interval, On-Delay | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 24 ~ 240VAC, 12 ~ 125VDC | |
Macromatic Industrial Controls
|
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Price on request
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SPDT (1 Form C) | 10A @ 240VAC/30VDC | 0.05 Sec ~ 10230 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | DIP Switches | Input Voltage | 120VAC/DC | |
NTE Electronics
|
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DPDT (2 Form C) | 10A @ 120VAC/30VDC | - | Off-Delay | - | Mechanical Relay | Plug In, 11 Pin (Octal) | - | - | 120VAC | |
Autonics
|
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SPDT (1 Form C), DPDT (2 Form C) | 3A @ 250VAC | 0.001 Sec ~ 9999 Hrs | Programmable (Multi-Function) | Panel Mount | - | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | - | 24 ~ 240VAC/DC |
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