07KT97 GJR5253100R4278 ABB Multifunctional time relay DIN rail installation
ABB 07KT97 is a high-performance multi-functional electronic time relay, belonging to the ABB 07K series timer product line. This relay offers 8 selectable time functions (such as power-on delay, power-off delay, star-delta start, pulse output, etc.), which can be easily set through the front panel dip switch or knob. It is suitable for various industrial scenarios that require precise timing control.
Technical parameters
| ABB Model Number | 07KT97 |
| Official ABB Order Code | GJR5253100R4278 |
| Product Type | Fieldbus Communication Module / MB300 Interface |
| Compatible Controller Platform | ABB Advant Controller 450 (AC 450) |
| Fieldbus Protocol | ABB MasterBus 300 (MB300) |
| Communication Speed | Up to 1.5 Mbps |
| Max Number of Remote Nodes | Supports up to 16 remote I/O stations per bus segment |
| Cable Type | Shielded twisted-pair (ABB-recommended LIYCY or equivalent) |
| Max Bus Length | Up to 500 meters (depending on baud rate and topology) |
| Electrical Isolation | Galvanic isolation on bus interface (enhances noise immunity) |
| Redundancy Support | Yes – supports redundant 07KT97 modules for high-availability systems |
| Hot-Swap Capability | Supported in redundant configurations |
Installation and Usage instructions
Mechanical installation
Insert into the standard DIN rail and ensure the lock is in place.
It is recommended to reserve 10 mm of heat dissipation space on both sides.
Electrical wiring
A1/A2 is connected to the power supply (24-240 V AC/DC, polarity independent);
Output terminals: 13/14 (normally open), 11/12 (public), 11/14 (normally closed);
The control signal is connected to A1 or a dedicated trigger terminal (depending on the functional mode).
Function Settings
Use the dip switch to select the desired time function (refer to the panel illustration);
Product Images
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