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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | SSAC / Littelfuse |
| Manufacturer Product Number | T2D24A23 |
| Description | TDR; 0.1...10 min; Knob Adj; 24V AC; 1A SPST-NO; Lockout with Random Start |
| Datasheet | Download Datasheet |
The Littelfuse SSAC T2D24A23 is a solid-state lockout with random start timer module for 24 V AC, with a 1 A solid-state output (10 A inrush). Its delay is adjustable from 0.1 to 10 minutes with its onboard knob.
Two connections: (1) random start plus lockout -- on power-up a random start delay runs before the output energizes, and whenever the thermostat opens a lockout delay of the same length keeps the compressor off; (2) wired in series with the load it is a two-terminal delay-on-make timer. 24 V AC units work with cooling anticipators of 3000 ohms or more.
Output: 1A SPST-NO. Voltage drop about 2.5 V at full load. Repeat accuracy: ±1% or 20 ms, whichever is greater. Setting accuracy: ±30%. Supply tolerance: ±20% of nominal; 50/60 Hz.
It is surface mounted and has 0.250 in (6.3 mm) male quick-connect terminals. It operates from -20 to +60 °C and stores from -40 to +85 °C.
| Category | |
| Manufacturer | SSAC / Littelfuse |
| Model | T2D |
| Output Technology | Solid State |
| Timing Function | Lockout with Random Start |
| Delay Time | 0.1...10 min |
| Timing Adjustment Method | Onboard knob |
| Timing Initiate Method | Control Switch |
| Contact Configuration | 1A SPST-NO |
| Load Current (A) | 1 |
| Input Voltage | 24V AC |
| Termination Style | Quick Connect - 0.250" (6.3mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -20...+60 °C (-40...+85 °C) |
| Setting Accuracy (%) | ±30% |
| Repeatability (%) | ±1% or 20 ms, whichever is greater |
| Maximum Peak Current (A) | 10 |
| Input Operating Range | ±20% of nominal; 50/60 Hz |
| On-State Voltage Drop (V) | 2.5 |