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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Idec
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.1 Sec ~ 600 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In | Hand Dial | Input Voltage, Trigger Signal | 24VAC/DC | |
Idec
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.1 Sec ~ 600 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In | Hand Dial | Input Voltage, Trigger Signal | 100 ~ 240VAC | |
Idec
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DPDT (2 Form C) | 10A @ 240VAC/30VDC | 0.1 Sec ~ 600 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 11 Pin (Octal) | Hand Dial | Input Voltage, Trigger Signal | 12VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 30 Sec | On-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 24VAC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 30 Sec | On-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 120VAC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 15 Sec | One Shot | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 12VDC | |
Idec
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DPDT (2 Form C) | 3A @ 240VAC | 0.1 Sec ~ 180 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 24VAC/DC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 6 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 12VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 15 Sec | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 24VAC | |
|
TE Connectivity
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- | - | - | - | - | - | - | - | - | - | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 3 Min | Off-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 12VDC | |
Littelfuse Inc.
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- | - | Fixed, 5 Min | On-Delay | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 120VAC | |
Crouzet
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DPDT (2 Form C) | 10A @ 250VAC | 0.5 Sec ~ 240 Hrs | On-Delay | Socketable | Mechanical Relay | Plug In, 11 Pin (Octal) | Hand Dial | Input Voltage | 12 ~ 240VAC/DC | |
Omron
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SPDT (1 Form C) | - | 1 Sec ~ 120 Sec | Off-Delay | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 100 ~ 120VAC | |
Omron
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SPDT (1 Form C) | - | 1 Sec ~ 120 Sec | Off-Delay | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 24 ~ 48VAC/DC | |
Omron
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SPDT (1 Form C) | - | 1 Sec ~ 120 Sec | Off-Delay | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 200 ~ 240VAC | |
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 | 24 ~ 48VAC/DC | |
Omron
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DPDT (2 Form C) | - | 0.1 Sec ~ 1200 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
Omron
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DPST-NO/NC (1 Form A and B) | 3A @ 250VAC | 0.1 Sec ~ 10 Min | On-Delay | Through Hole | Mechanical Relay | PC Pin | Screwdriver Slot | Input Voltage, Trigger Signal | 12VDC | |
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 | 120VAC | |
Altech Corporation
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SPDT (1 Form C) | 8A @ 240VAC | 0.1 Sec ~ 999 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | Up/Down Digit Keys | Input Voltage | 24 ~ 265VAC/DC | |
|
TE Connectivity
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- | - | - | - | - | - | - | - | - | - | |
Altech Corporation
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DPST-NO (2 Form A) | 8A @ 240VAC | 0.1 Sec ~ 999 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | Up/Down Digit Keys | Input Voltage | 24 ~ 265VAC/DC | |
Idec
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DPDT (2 Form C) | 3A @ 250VAC/30VDC | 0.1 Sec ~ 600 Sec | Off-Delay | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 24VAC/DC | |
Idec
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DPDT (2 Form C) | 3A @ 240VAC | 0.1 Sec ~ 6 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Screwdriver Slot | Input Voltage | 24VAC/DC | |
Idec
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SPDT (1 Form C) | 5A @ 250VAC/30VDC | 0.1 Sec ~ 600 Sec | Off-Delay | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Hand Dial | Input Voltage | 100 ~ 240VAC | |
Idec
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DPDT (2 Form C) | 3A @ 250VAC/30VDC | 0.1 Sec ~ 600 Sec | Off-Delay | Socketable | Mechanical Relay | Plug In, 11 Pin (Octal) | Hand Dial | Input Voltage | 100 ~ 240VAC | |
Idec
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DPDT (2 Form C) | 3A @ 240VAC | 0.1 Sec ~ 6 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Screwdriver Slot | Input Voltage | 100 ~ 240VAC | |
Idec
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DPDT (2 Form C) | 3A @ 240VAC | 0.1 Sec ~ 6 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In, 8 Pin (Octal) | Screwdriver Slot | Input Voltage | 12VDC | |
Omron
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SPDT (1 Form C) | - | 0.1 Sec ~ 1200 Hrs | Repeat Cycle, Twin Timer | DIN Rail | Mechanical Relay | Spring Terminal | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
Littelfuse Inc.
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DPDT (2 Form C) | 10A @ 120/240VAC | 3 Sec ~ 300 Sec | On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 120VAC | |
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 | 12 ~ 120VDC | |
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Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 180 Sec | On-Delay | 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 @ 48VDC | - | Off-Delay | DIN Rail | Solid State Relay | Screw Terminal | Screwdriver Slot | Input Voltage | 12 ~ 24VAC/DC | |
Omron
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- | - | 0.6 Sec ~ 60 Min | On-Delay | Through Hole | Solid State Relay | PC Pin | Screwdriver Slot | Input Voltage, Trigger Signal | 12 ~ 24VDC | |
Omron
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DPST-NO/NC (1 Form A and B) | 3A @ 250VAC | 0.6 Sec ~ 60 Min | On-Delay | Through Hole | Mechanical Relay | PC Pin | Screwdriver Slot | Input Voltage, Trigger Signal | 12VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | 0.1 Sec ~ 10 Sec | One Shot | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage, Trigger Signal | 24VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 5 Sec, 18 Min | Repeat Cycle | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 120VAC | |
Omron
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DPDT (2 Form C) | 5A @ 250VAC | 0.1 Min ~ 10 Hrs | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In | Hand Dial | Input Voltage | 100 ~ 110VDC | |
Omron
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SPDT (1 Form C) | 3A @ 250VAC | 0.1 Sec ~ 10 Min | Programmable (Multi-Function) | Socketable | Mechanical Relay | Plug In | Thumbwheel Switches | Input Voltage | 24VAC | |
Phoenix Contact
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SPST-NO (1 Form A) | 0.1A @ 48VDC | - | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | DIP Switches | Input Voltage, Trigger Signal | 24VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | Fixed, 15 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage | 12VDC | |
Littelfuse Inc.
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SPST-NO (1 Form A) | - | 0.04 Sec ~ 10 Sec | Interval | Chassis Mount | Solid State Relay | Quick Connect - 0.250" (6.3mm) | External Resistor | Input Voltage | 24VDC | |
Finder
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SPDT (1 Form C) | 16A @ 250VAC | 0.05 Sec ~ 240 Hrs | Repeat Cycle | DIN Rail | Mechanical Relay | Screw Terminal | Screwdriver Slot | Input Voltage, Trigger Signal | 24 ~ 240VAC/DC | |
Crouzet
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DPDT (2 Form C) | 8A @ 250VAC | 0.5 Sec ~ 240 Hrs | Programmable (Multi-Function) | DIN Rail | Mechanical Relay | Screw Terminal | Hand Dial | Input Voltage | 12 ~ 240VAC/DC | |
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 | 24VDC | |
Littelfuse Inc.
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SPDT (1 Form C) | 10A @ 125VAC | Fixed, 0.1 Sec | Off-Delay, On-Delay | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Fixed | Input Voltage, Trigger Signal | 24 ~ 240VAC/DC | |
Littelfuse Inc.
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SPDT (1 Form C) | 10A @ 125VAC | 0.1 Sec ~ 10 Sec | Repeat Cycle | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
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) | Screwdriver Slot | Input Voltage | 24 ~ 240VAC/DC | |
Littelfuse Inc.
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SPDT (1 Form C) | 10A @ 125VAC | 0.1 Sec ~ 10 Sec | One Shot | Chassis Mount | Mechanical Relay | Quick Connect - 0.250" (6.3mm) | Screwdriver Slot | Input Voltage, Trigger Signal | 24VAC/DC |
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