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ABB JSR3T expansion relay. 24 AC/DC
ABB JSR3T 2TLA010017R0100 is a 24 V AC/DC safety expansion relay with two normally open delayed outputs and a hardwire-selectable 0.5–10 s delay for machinery safety applications.
Why Choose the ABB JSR3T 24 AC/DC Expansion Relay?
The ABB JSR3T 2TLA010017R0100 is a safety expansion relay with delayed outputs from the ABB Jokab Safety range. Designed for connection to a compatible safety relay, it provides additional delayed safety outputs for machinery and industrial safety circuits where a controlled delay is required before power is removed.
The JSR3T operates from a 24 V AC/DC supply and provides 2 × 1 NO relay outputs. Its hardwire-selectable off-delay can be configured between 0.5 and 10 s, with a Time Trim potentiometer providing further adjustment of the selected delay. This makes it particularly useful for applications requiring delayed stop signals and controlled Stop Category 1 functions.
With a compact 22.5 mm DIN rail housing, output indication and dual safety outputs, the ABB JSR3T provides a practical way to add time-delayed switching to compatible machine safety systems without unnecessarily increasing control-panel space.
Key Advantages
- Safe delayed outputs for compatible machinery safety circuits.
- Hardwire-selectable 0.5–10 s delay provides flexible timing configuration.
- 24 V AC/DC supply supports common industrial control voltages.
- 2 × 1 NO relay outputs provide redundant delayed output capability.
- Compact 22.5 mm width conserves DIN rail space.
- Suitable for expanding compatible safety relays where delayed stopping functions are required.
Key Features
- ABB Jokab Safety JSR3T expansion relay.
- 24 V AC/DC, 50–60 Hz supply.
- 2 × 1 normally open relay outputs.
- 0.5–10 s selectable off-delay.
- Hardwire delay selection using terminal links.
- Time Trim potentiometer for fine adjustment of the selected delay.
- Less than 20 ms activation response time.
- Output indication for straightforward status monitoring.
- 22.5 mm wide DIN rail housing.
- Designed for safe delayed stop applications.
Reliable Delayed Outputs for Machinery Safety Systems
Certain machinery safety functions require a controlled stop before power is removed from the machine actuator. When connected to a compatible safety relay, the ABB JSR3T provides delayed safety outputs that can support applications where this controlled stopping sequence is necessary.
The delay is selected by hardwired links at the JSR3T terminals, with settings available between 0.5 and 10 s. A Time Trim potentiometer allows the selected maximum delay to be reduced for finer adjustment, helping machine builders and control engineers configure the stopping sequence for the application.
Typical Applications
- Safety relay output expansion.
- Delayed machine stopping circuits.
- Controlled Stop Category 1 applications.
- Emergency-stop systems requiring delayed outputs.
- Industrial machinery safety systems.
- Automated production equipment.
- Machine control and safety panels.
Technical Specifications
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| SIL (up to) | SIL 3 | |
|---|---|---|
| Timing Function | Delayed outputs | |
| Coil / Supply Voltage | 24 V AC, 24 V DC | |
| IP Rating | IP20 | |
| Manufacturer | ABB | |
| Product range | ABB Jokab Safety | |
| Model | JSR3T 24AC/DC | |
| Manufacturer part number | 2TLA010017R0100 | |
| Product type | Safety expansion relay | |
| Function | Delayed safety output expansion | |
| Supply voltage | 24 V AC/DC | |
| Supply frequency | 50–60 Hz | |
| Power consumption | 1.3 VA/W | |
| Relay outputs | 2 × 1 NO | |
| Selectable delay | 0.5–10 s | |
| Activation response time | <20 ms | |
| Maximum resistive AC switching | 4 A at 250 V AC / 1,000 VA | |
| AC-15 rating | 3 A at 240 V AC | |
| Maximum resistive DC switching | 4 A at 24 V DC / 100 W | |
| DC-13 rating | 2 A at 24 V DC | |
| Maximum total resistive load | 6 A distributed across contacts | |
| Contact material | AgNi | |
| Mounting | DIN rail | |
| Width | 22.5 mm | |
| Height | 82 mm | |
| Depth | 99 mm | |
| Net weight | 0.158 kg | |
| Protection rating | IP20 | |
| EAN | 7350024433111 |
Frequently Asked Questions
What is the ABB JSR3T 2TLA010017R0100 used for?
The ABB JSR3T is a safety expansion relay designed to provide delayed safety outputs when connected to a compatible safety relay, making it suitable for machinery applications requiring a controlled delay before outputs are switched off.
What supply voltage does the ABB JSR3T require?
The JSR3T 2TLA010017R0100 operates from a 24 V AC/DC supply at 50–60 Hz.
What outputs does the ABB JSR3T provide?
The expansion relay provides 2 × 1 normally open relay outputs. ABB specifies that both output contacts should be used appropriately to maintain the required redundancy in safety applications.
What delay range does the ABB JSR3T offer?
The JSR3T provides a hardwire-selectable delay from 0.5 to 10 s. The selected delay can be further adjusted using the integral Time Trim potentiometer.
How is the ABB JSR3T installed?
The JSR3T is designed for DIN rail mounting inside an appropriate control enclosure and has a compact housing measuring 22.5 mm wide.
Trusted for Industrial Machine Safety
ABB Jokab Safety components are designed for machinery safety and automation applications where dependable control of safety-related functions is essential, with the JSR3T providing a compact solution for adding configurable delayed outputs to compatible safety relay systems.
