Why Choose the Finder 7S.34.8.230.4310 Safety Relay?
The Finder 7S.34.8.230.4310 is a dependable electromechanical safety relay with forcibly guided contacts, designed for industrial machinery, safety-related switching and monitored control applications. Part of the Finder 7S Series, this modular relay provides reliable switching performance and a compact DIN rail-mounted solution for electrical control cabinets.
Featuring four forcibly guided contacts arranged as 3 normally open (NO) and 1 normally closed (NC), the relay provides three switching paths and one feedback contact. Its mechanically linked contact construction supports external fault monitoring, helping suitable safety circuits identify conditions such as welded contacts.
With a 230 V AC nominal coil voltage, 6 A contact rating and 250 V AC nominal switching voltage, the Finder 7S.34.8.230.4310 is suitable for industrial automation and machinery safety interfaces. Its screw terminal connections, integrated LED status indicator and DIN rail mounting make it practical for panel builders and maintenance engineers.
Key Advantages
- 3 NO + 1 NC contact configuration provides three switching contacts and one feedback contact.
- Class A forcibly guided contacts support fault detection through suitable external monitoring circuits.
- 230 V AC operating coil for industrial AC control systems.
- 6 A rated contact current for appropriately rated electrical loads.
- 250 V AC nominal switching voltage supports industrial control applications.
- Silver tin oxide (AgSnO) contacts provide dependable switching characteristics.
- Integrated LED status indicator simplifies operational checks and troubleshooting.
- Screw terminal connections provide secure and convenient electrical wiring.
- DIN rail mounting simplifies installation in industrial electrical enclosures.
- −40 to +70 °C operating temperature range supports demanding environments.
- Suitable for safety-related relay expansion and monitored switching circuits.
Key Features
- Finder 7S Series modular safety relay.
- Four forcibly guided electromechanical contacts.
- 3 normally open and 1 normally closed contacts.
- Class A contact guidance according to EN 61810-3.
- 230 V AC nominal coil voltage.
- 195 V AC must-operate voltage.
- 23 V AC must-release voltage.
- 6 A rated contact current.
- 250 V AC nominal switching voltage.
- 1.2 W coil power consumption.
- 11.8 mA nominal coil current.
- 19.5 kΩ coil resistance.
- 12 ms typical operate time.
- 10 ms typical release time.
- Silver tin oxide contact material.
- Integrated LED coil status indicator.
- Screw terminal electrical connections.
- 35 mm DIN rail mounting.
- IP20 protection rating.
Technical Specifications
- Manufacturer: Finder
- Series: 7S Series
- Model: 7S.34.8.230.4310
- Product type: Electromechanical safety relay
- Contact technology: Forcibly guided contacts
- Contact guidance classification: Class A
- Contact configuration: 3 NO + 1 NC
- Number of contacts: 4
- Contact form: 4PST, 3 Form A + 1 Form B
- Nominal coil voltage: 230 V AC
- Coil supply type: AC
- Must-operate voltage: 195 V AC
- Must-release voltage: 23 V AC
- Nominal coil current: 11.8 mA
- Coil power consumption: 1.2 W
- Coil resistance: 19.5 kΩ
- Rated contact current: 6 A
- Nominal switching voltage: 250 V AC
- Contact material: Silver tin oxide (AgSnO)
- Operate time: 12 ms
- Release time: 10 ms
- Operating temperature: −40 to +70 °C
- Protection rating: IP20
- Mounting type: DIN rail
- Terminal type: Screw terminals
- Status indication: Integrated LED indicator
- Housing width: 22.5 mm
- Dimensions (W × H × D): 22.5 × 78.8 × 96 mm
- Applicable contact standard: EN 61810-3
- Country of origin: Italy
- RoHS compliance: Compliant
Reliable Safety Switching for Industrial Machinery
Safety relays with forcibly guided contacts are important components in machinery safety-related control systems. Their mechanically linked normally open and normally closed contacts are designed so that opposing contact types cannot simultaneously remain closed under specified fault conditions. This characteristic enables suitable external monitoring circuits to detect failures such as welded contacts.
The Finder 7S.34.8.230.4310 provides a 3 NO + 1 NC contact arrangement, making it suitable for applications requiring multiple normally open switching paths and a dedicated normally closed feedback contact. This configuration is useful for monitored switching arrangements, relay expansion modules and industrial machinery control interfaces.
Its Class A forcibly guided contact construction supports integration into safety-related systems designed in accordance with applicable functional safety standards. Depending on the complete architecture and assessment, the relay may form part of systems targeting SIL 2 or Performance Level d (PL d).
The 230 V AC coil, 6 A contact rating and compact DIN rail construction make this model suitable for electrical control cabinets and industrial automation installations. The integrated LED indicator provides visual confirmation of coil energisation, while screw terminals support conventional panel wiring.
The Finder 7S.34.8.230.4310 is a relay component rather than a standalone safety controller. The achieved safety integrity level, performance level and diagnostic coverage depend on the complete circuit design, monitoring equipment and application-specific safety assessment.
Typical Applications
- Industrial machinery safety-related control circuits.
- Emergency-stop switching arrangements with suitable external monitoring.
- Safety relay expansion and interface assemblies.
- Machine guarding and safety interlock feedback circuits.
- Monitored contactor switching arrangements.
- Industrial automation and electrical control cabinets.
- Manufacturing machinery and automated production equipment.
- Packaging machinery and material handling systems.
- Conveyor systems and automated warehouse equipment.
- Industrial lifting equipment and machinery control interfaces.
- OEM machine building and control panel installations.
