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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SPDT (1 Form C) | 10A @ 125VAC | 1 Sec ~ 100 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 120VAC | |
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TE Connectivity
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Littelfuse Inc.
|
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SPDT (1 Form C) | 10A @ 125VAC | 0.1 Min ~ 10 Min | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 120VAC | |
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Littelfuse Inc.
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SPDT (1 Form C) | 10A @ 125VAC | Fixed, 15 Min | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 230VAC | |
Littelfuse Inc.
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Littelfuse Inc.
|
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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 | 120VAC | |
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Finder
|
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DPST-NO (2 Form A) | 16A @ 250VAC | 0.05 Sec ~ 240 Hrs | Star Delta Controller | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
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Omron
|
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SPDT (1 Form C) | 5A @ 250VAC | 0.1 Sec ~ 120 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage, Trigger Signal | 24 ~ 230VAC, 24 ~ 48VDC | |
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Altech Corporation
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- | - | - | - | - | - | - | - | - | - | |
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Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 1.2 Sec | On-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 24VDC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 1 Min ~ 100 Min | On-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, 45 Sec | Interval | 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) | - | Fixed, 600 Sec | Interval | 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) | - | 1 Min ~ 100 Min | Interval | 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) | - | 0.1 Sec ~ 100 Hrs | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 120VAC | |
|
TE Connectivity
|
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- | - | - | - | - | - | - | - | - | - | |
|
TE Connectivity
|
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- | - | - | - | - | - | - | - | - | - | |
Littelfuse Inc.
|
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DPDT (2 Form C) | 10A @ 120/240VAC | Fixed, 7 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 230VAC | |
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Littelfuse Inc.
|
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DPDT (2 Form C) | 10A @ 120/240VAC | Fixed, 3.5 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 24 ~ 28VDC | |
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Littelfuse Inc.
|
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DPDT (2 Form C) | 10A @ 120/240VAC | 0.5 Sec ~ 30 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 24VDC | |
Omron
|
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SPDT (1 Form C) | - | 0.1 Sec ~ 12 Sec | Off-Delay | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 100 ~ 120VAC | |
Omron
|
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SPDT (1 Form C) | - | 0.1 Sec ~ 12 Sec | Off-Delay | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 200 ~ 240VAC | |
Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 80 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 24VAC | |
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Littelfuse Inc.
|
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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, Trigger Signal | 24 ~ 240VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 0.1 Sec ~ 10 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 12 ~ 120VDC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 45 Sec | On-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 12 ~ 120VDC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | 1 Min ~ 100 Min | One Shot | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage, Trigger Signal | 12 ~ 120VDC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 10 Sec, 30 Sec | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 230VAC | |
Sensata
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SPST-NO (1 Form A) | 6A @ 280VAC | - | Programmable (Multi-Function) | DIN Rail | Solid State Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 90 ~ 140VAC/DC | |
Schneider Electric
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SPDT (1 Form C) | 8A @ 250VAC | 0.05 Sec ~ 300 Hrs | Interval | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
Altech Corporation
|
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SPDT (1 Form C) | - | 3 Sec ~ 60 Sec | Star Delta Controller | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 110VAC | |
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Finder
|
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SPST-NO (1 Form A) | 1A @ 240VAC/24VDC | 0.1 Sec ~ 24 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
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Omron
|
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 75 FPM | Repeat Cycle | Chassis Mount | Solid State Relay | Wire Leads | Fixed | Input Voltage | 120 ~ 240VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 10 Sec | One Shot | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 120VAC | |
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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, Trigger Signal | 120VAC | |
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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) | Screwdriver Slot | Input Voltage, Trigger Signal | 120VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 10 Sec | One Shot | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 24VAC | |
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Littelfuse Inc.
|
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SPST-NO (1 Form A) | - | Fixed, 12 Sec, 1 Sec ~ 100 Sec | Repeat Cycle | 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) | - | Fixed, 2 Min, 10 Sec ~ 1000 Sec | Repeat Cycle | 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) | - | Fixed, 30 Sec, 10 Sec ~ 1000 Sec | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 120VAC | |
Sensata
|
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SPST-NO (1 Form A) | 6A @ 280VAC | - | Repeat Cycle | DIN Rail | Solid State Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 90 ~ 140VAC/DC | |
Panasonic Electronic Components
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SPDT (1 Form C) | 5A @ 250VAC | 0.001 Sec ~ 999.9 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | Input Voltage | 12 ~ 24VDC | |
Panasonic Electronic Components
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SPDT (1 Form C) | 5A @ 250VAC | 0.001 Sec ~ 999.9 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | Input Voltage | 24VAC/DC | |
Panasonic Electronic Components
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SPDT (1 Form C) | 5A @ 250VAC | 0.001 Sec ~ 999.9 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | Input Voltage | 100 ~ 240VAC | |
Panasonic Electronic Components
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SPST-NO (1 Form A) | 0.1A @ 30VDC | 0.001 Sec ~ 999.9 Hrs | Programmable (Multi-Function) | Socketable | Solid State Relay | Plug In, 8 Pin (Octal) | Up/Down Digit Keys | Input Voltage | 12 ~ 24VDC | |
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Altech Corporation
|
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SPDT (1 Form C) | 16A @ 240VAC | - | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | Up/Down Digit Keys | Input Voltage | 12VDC | |
Schneider Electric
|
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SPDT (1 Form C) | 8A @ 250VAC | 0.05 Sec ~ 300 Hrs | Asymmetric Flasher | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
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Littelfuse Inc.
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SPDT (1 Form C) | 10A @ 125VAC | 1 Sec ~ 100 Sec | Repeat Cycle | 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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SPDT (1 Form C) | 10A @ 125VAC | - | Repeat Cycle | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | - | Input Voltage | 120VAC |
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