SSAC-SYMCOM THDB421A Time Delay Relay
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SSAC-SYMCOM THDB421A Time Delay Relay
SSAC-SYMCOM THDB421A Time Delay Relay
Part #:THDB421A
SKU #: 2345922
Key Features
Part #:THDB421A
SKU #: 2345922
Brand: Littelfuse
Contact Form: SPST/NO (1 Form A)
Dimensions: 2 in H x 2 in W x 1.51 in D
Electrical Connections: Male Quick-Connect Terminal
Operation Mode: Delay On Break
Series: THDB
- Microcontroller based repeat accuracy +/-0.5%, factory calibration +/-1%
- High load currents up to 20 A, 200 A inrush allows direct operation of motors, lamps and heaters without a contactor
- Totally solid state and encapsulated no moving parts to arc and wear out over time and encapsulated to protect against shock, vibration and humidity
- Metalized mounting surface facilitates heat transfer in high current applications
- Compact, low cost design allows flexibility for OEM applications and reduces labor and components costs
SSAC-SYMCOM THDB421A Time Delay Relay
Littelfuse SSAC Time Delay Relay, Adjustable External, Series: THDB, Operation Mode: Delay On Break, 120 VAC, SPST/NO (1 Form A), 1 to 100 s, Male Quick-Connect Terminal, -40 to 60 deg F, Surface Mount, 2 in H x 2 in W x 1.51 in D
Additional Description: LTFS-THDB421A (N) (D) Timer-DOB 120VAC 6A ExtAdj 1-100s 2x2 NON-CANCELABLE, NON-RETURNABLE
Catalog Description: The THDB Series combines accurate timing circuitry with high power, solid-state switching. It can switch motors, lamps, and heaters directly without a contactor. You can reduce labor, component cost, and increase reliability with these small, easy-to-use, THDB Series timers. Operation (Delay-on-Break): Input voltage must be applied before and during timing. Upon closure of the initiate switch, the output energizes. The time delay begins when the initiate switch is opened. The output remains energized during timing. At the end of the time delay, the output de-energizes. The output energizes if the initiate switch is closed when input voltage is applied. Reset: Reclosing the initiate switch during timing resets the time delay. Loss of input voltage resets the time delay and output.