Why Choose the Finder 7S.34.9.110.4310 Safety Relay?
The Finder 7S.34.9.110.4310 is a 110 V DC modular safety relay with four forcibly guided contacts, designed for safety-related switching, contact monitoring and industrial automation applications. Part of the Finder 7S Series, this relay features 3 normally open (NO) and 1 normally closed (NC) contacts, providing multiple switching paths and a feedback contact for appropriately engineered machinery safety circuits.
The relay incorporates Class A forcibly guided contact technology, which mechanically links the normally open and normally closed contacts to support the detection of certain contact failures. Its 6 A rated contact current, 250 V AC nominal switching voltage and silver tin oxide contact material make it suitable for compatible industrial control and auxiliary switching loads.
Featuring screw terminal connections, an illuminated coil status indicator and a compact 22.5 mm-wide housing, the Finder 7S.34.9.110.4310 is designed for straightforward installation on a 35 mm DIN rail. Its combination of forcibly guided contacts, practical wiring connections and reliable switching performance makes it suitable for machinery control cabinets, industrial automation systems and safety-related relay interfaces.
Key Advantages
- Four forcibly guided contacts support contact-state monitoring and fault detection in appropriately designed safety circuits.
- 3 NO + 1 NC contact configuration provides three normally open switching paths and one normally closed feedback path.
- 110 V DC nominal coil for compatible industrial DC control systems.
- 6 A rated contact current supports suitable control and auxiliary loads.
- 250 V AC nominal switching voltage for compatible industrial switching applications.
- Class A forcibly guided contact technology supports safety-related control system design.
- Silver tin oxide (AgSnO₂) contacts provide robust industrial switching characteristics.
- Screw terminal connections allow convenient wiring and maintenance.
- Illuminated coil indicator provides visual confirmation of relay energisation.
- 22.5 mm slimline housing helps conserve space inside electrical enclosures.
- DIN rail mounting simplifies integration into industrial control panels.
- IP20 protection rating for installation within a suitable electrical enclosure.
Key Features
- Finder 7S Series modular relay with forcibly guided contacts.
- Type 7S.34 four-contact relay module.
- 110 V DC nominal coil voltage.
- 3 NO + 1 NC contact arrangement.
- Class A forcibly guided contacts according to EN 61810-3.
- 6 A rated contact current.
- 250 V AC nominal contact switching voltage.
- Silver tin oxide (AgSnO₂) contact material.
- Mechanically linked NO and NC contacts for suitable monitoring arrangements.
- Screw terminal connections for secure panel wiring.
- Integrated illuminated status indicator.
- 35 mm DIN rail mounting.
- 22.5 mm housing width.
- IP20 protection rating.
- −40 to +70 °C operating temperature range.
- Suitable for integration into correctly designed and validated safety-related control systems.
Technical Specifications
- Manufacturer: Finder
- Series: 7S Series
- Type: 7S.34
- Manufacturer part number: 7S.34.9.110.4310
- Product type: Modular relay with forcibly guided contacts
- Nominal coil voltage: 110 V DC
- Must-operate voltage: 77 V DC
- Coil current: 11.6 mA
- Coil resistance: 9.5 kΩ
- Number of contacts: 4
- Contact configuration: 3 NO + 1 NC
- Contact arrangement: 4PST, 3 Form A + 1 Form B
- Contact guidance: Class A forcibly guided
- Rated contact current: 6 A
- Nominal switching voltage: 250 V AC
- Contact material: Silver tin oxide (AgSnO₂)
- Operate time: 12 ms
- Release time: 10 ms
- Operating temperature: −40 to +70 °C
- Protection rating: IP20
- Terminal type: Screw terminals
- Status indication: Illuminated coil indicator
- Mounting type: 35 mm DIN rail
- Housing width: 22.5 mm
- Forcibly guided contact standard: EN 61810-3
Forcibly Guided Contact Technology for Machinery Safety and Industrial Automation
Safety-related industrial control systems frequently require reliable switching and feedback to determine whether electrical contacts have returned to their intended state. The Finder 7S.34.9.110.4310 uses mechanically linked contacts in a 3 NO + 1 NC arrangement, allowing the normally closed contact to support monitoring of the normally open switching contacts within a correctly designed circuit. This arrangement helps engineers implement monitored switching functions and detect certain contact failures.
The relay's 110 V DC coil, 6 A contact rating, screw terminals and compact DIN rail-mounted construction make it suitable for industrial control panels and safety-related relay interfaces. The Finder 7S.34.9.110.4310 is a relay component rather than a complete standalone safety controller; the achieved safety category, performance level or safety integrity level depends on the complete system architecture, diagnostic coverage and validation.
Typical Applications
- Industrial machinery safety-related control circuits.
- Emergency stop relay interfaces within validated safety systems.
- Machine guarding and safety interlock monitoring.
- Multiple-contact switching and feedback circuits.
- Industrial automation control panels.
- Manufacturing and production equipment.
- Process control and auxiliary switching systems.
- Electrical control cabinets using compatible 110 V DC supplies.
