Why Choose the Finder 81.01.0.230.0000T Multifunction Timer Relay?
The Finder 81.01.0.230.0000T is a versatile and reliable multifunction electronic timer relay designed for precise time-controlled switching in industrial automation, railway electrical equipment and machinery control systems. As part of the Finder 81 Series modular timer relay range, it provides seven selectable timing functions, making it suitable for engineers and OEM manufacturers requiring flexible, dependable timing control.
This timer relay features a single changeover (SPDT) output contact rated at 16 A, a wide 12–230 V AC/DC supply range and six selectable timing ranges covering 0.1 s to 10 h. Its multifunction design supports supply-triggered and control-signal-triggered timing operations, including delayed activation, interval switching and cyclic operation. Integrated LED indicators provide convenient visual monitoring of supply and output status.
The Finder 81.01.0.230.0000T is a railway-oriented version of the 81.01 timer relay, suitable for applications requiring compliance with railway environmental, fire protection and vibration standards. Its compact 17.5 mm-wide DIN rail housing, screw terminal connections and adjustable timing controls enable straightforward integration into railway electrical cabinets, industrial automation panels and machinery control installations.
Key Advantages
- Versatile multifunction timer relay for industrial automation and railway control applications.
- Seven selectable timing functions provide flexible control of electrical switching sequences.
- 12–230 V AC/DC universal supply supports a wide range of control system voltages.
- Adjustable timing range from 0.1 s to 10 h accommodates short and extended timing requirements.
- Six selectable time ranges simplify precise timing configuration.
- 16 A rated changeover contact provides dependable switching for suitable electrical loads.
- 250 V AC rated contact voltage for industrial switching applications.
- Supports supply-triggered and control-signal-triggered operation.
- External reset capability provides additional control flexibility.
- Railway-oriented construction suitable for demanding transport electrical environments.
- Designed to meet relevant EN 45545-2, EN 50155 and EN 61373 railway requirements.
- Integrated LED status indication assists with commissioning and troubleshooting.
- Compact 17.5 mm DIN rail housing saves space inside electrical control cabinets.
- Screw terminal connections provide secure and straightforward wiring.
Key Features
- Finder 81 Series modular multifunction timer relay.
- Seven selectable timing functions.
- Six adjustable timing ranges.
- 0.1 s to 10 h timing adjustment range.
- 12–230 V AC supply voltage.
- 12–230 V DC supply voltage.
- One changeover output contact (1 CO / SPDT).
- 16 A rated switching current.
- 250 V AC rated switching voltage.
- On-delay (AI) timing function.
- Interval (DI) timing function.
- Symmetrical flasher (SW) timing function.
- Signal-triggered timing functions for externally controlled operation.
- Reset input for additional timing control.
- LED indicators for supply and relay output status.
- Railway application variant designed for relevant transport industry requirements.
- IP20 protection rating for installation inside suitable electrical enclosures.
- 35 mm DIN rail mounting according to EN 60715.
- 17.5 mm module width for space-efficient installation.
- Screw terminal connections for secure electrical wiring.
Technical Specifications
- Manufacturer: Finder
- Series: 81 Series Modular Timer Relays
- Model: 81.01.0.230.0000T
- Product type: Multifunction electronic timer relay
- Application variant: Railway
- Number of timing functions: 7
- Number of timing ranges: 6
- Minimum timing interval: 0.1 s
- Maximum timing interval: 10 h
- Timing range: 0.1 s to 10 h
- Supply voltage AC: 12–230 V AC
- Supply voltage DC: 12–230 V DC
- Supply type: AC/DC
- AC supply frequency: 50/60 Hz
- Output configuration: 1 changeover contact (SPDT / 1 CO)
- Number of output contacts: 1
- Rated contact current: 16 A
- Rated switching voltage: 250 V AC
- Contact material: Silver cadmium oxide (AgCdO)
- Timing functions: Seven selectable supply-triggered and signal-triggered functions
- Supply-triggered functions: 4
- Control-signal-triggered functions: 3
- Timing adjustment: Rotary selector controls
- External control input: Yes
- Reset function: Yes
- Status indication: LED indicators
- Operating temperature: -10 to +50 °C
- Protection rating: IP20
- Mounting type: 35 mm DIN rail
- DIN rail standard: EN 60715
- Terminal type: Screw terminals
- Number of connection terminals: 8
- Module width: 17.5 mm
- Dimensions (W × H × D): approx. 17.5 × 84 × 56.5 mm
- Railway fire protection standard: EN 45545-2
- Railway electronic equipment standard: EN 50155
- Railway shock and vibration standard: EN 61373
- EAN: 8012823355122
Flexible Timing Control for Industrial and Railway Automation
Multifunction timer relays such as the Finder 81.01.0.230.0000T control electrical switching according to a selected timing function and preset time interval. Unlike a conventional instantaneous relay, a multifunction timer can delay activation, control the duration of an output signal or provide repetitive switching sequences. This allows machinery and electrical equipment to operate according to defined timing requirements.
The Finder 81.01 Series provides seven timing functions, comprising four supply-triggered functions and three control-signal-triggered functions. These include on-delay, interval and symmetrical flasher operation, together with additional externally triggered timing modes. The selected timing interval can be adjusted from 0.1 s to 10 h, providing flexibility for applications ranging from short control pulses to extended operating sequences.
The relay incorporates a 16 A single changeover contact, allowing switching between normally open and normally closed output paths. Its external control and reset connections enable integration into more complex control circuits, while LED indicators provide visual information about the operating state of the timer and its output contact.
The 81.01.0.230.0000T railway variant is designed for electrical applications where resistance to mechanical vibration and compliance with railway environmental requirements are important. Its suitability for railway installations is supported by relevant EN 45545-2, EN 50155 and EN 61373 standards, subject to the conditions and requirements of the complete system.
With its 12–230 V AC/DC universal supply, compact DIN rail mounting format and screw terminal connections, the Finder 81.01.0.230.0000T offers a practical solution for industrial automation engineers, railway equipment manufacturers and electrical panel builders requiring reliable multifunction timing control.
Typical Applications
- Railway rolling stock electrical control systems.
- Railway auxiliary equipment and timed switching circuits.
- Industrial machinery sequencing and automation control.
- Electrical control panels and industrial automation cabinets.
- Delayed activation and deactivation of control equipment.
- Industrial conveyor and material handling systems.
- Ventilation and extraction system timing control.
- Heating, ventilation and air conditioning (HVAC) installations.
- Automatic doors, gates and access control systems.
- Timed lighting and electrical switching applications.
- Industrial pumps and motor control circuits using suitable external switching devices.
- Packaging and manufacturing machinery.
- Process automation requiring interval or cyclic timing.
- OEM machinery and electrical equipment manufacturing.
