Why Choose the Finder 7S.36.9.048.5420 Safety Relay?
The Finder 7S.36.9.048.5420 is a compact six-contact electromechanical safety relay designed for safety-related switching, contact monitoring and industrial automation applications. Part of the Finder 7S Series, this relay incorporates mechanically linked, forcibly guided contacts to support reliable operation in appropriately engineered machinery safety systems.
Featuring 4 normally open (NO) and 2 normally closed (NC) contacts, the Finder 7S.36.9.048.5420 provides four switching paths and two feedback contacts within a single modular unit. Its Class A forcibly guided contact construction, in accordance with EN 61810-3, enables suitable external monitoring circuits to detect specified contact faults, including welded contacts.
With a 48 V DC operating coil, 6 A rated contact current, gold-plated silver tin oxide contacts and screw terminal connections, this relay is well suited to industrial control panels, machinery safety interfaces and monitored relay expansion circuits. Its 22.5 mm wide DIN rail housing helps conserve space in electrical enclosures.
Key Advantages
- Six forcibly guided contacts provide reliable electromechanical switching and monitoring functionality.
- 4 NO + 2 NC contact configuration supports multiple switching outputs and feedback circuits.
- 48 V DC operating coil for industrial DC control systems.
- 6 A rated contact current for appropriately rated electrical loads.
- Class A forcibly guided contacts support contact fault detection through external monitoring.
- Gold-plated silver tin oxide contacts provide dependable switching characteristics.
- Screw terminal connections support secure and convenient panel wiring.
- 35 mm DIN rail mounting simplifies installation in industrial control cabinets.
- 22.5 mm wide modular housing saves valuable installation space.
- IP20 protection rating for installation within suitable electrical enclosures.
- Long mechanical operating life supports demanding industrial applications.
- Suitable for integration into appropriately designed SIL 2 and PL d safety-related systems, subject to complete system assessment.
Key Features
- Finder 7S Series modular relay with forcibly guided contacts.
- Six-pole electromechanical contact arrangement.
- 4 normally open and 2 normally closed contacts.
- Class A contact guidance according to EN 61810-3.
- 48 V DC nominal coil voltage.
- DC-operated relay coil.
- 6 A rated switching contacts.
- 250 V AC nominal switching voltage.
- 1,500 VA AC-1 switching capacity.
- Silver tin oxide contacts with gold plating.
- 12 ms typical operate time.
- 10 ms typical release time.
- 10 million mechanical operations.
- 100,000 electrical operations at nominal AC-1 load.
- Screw terminal electrical connections.
- 35 mm DIN rail mounting.
- 22.5 mm housing width.
- IP20 protection rating.
- −40 to +70 °C operating temperature range.
Technical Specifications
- Manufacturer: Finder
- Series: 7S Series
- Part number: 7S.36.9.048.5420
- Product type: Modular electromechanical safety relay
- Relay technology: Forcibly guided electromechanical contacts
- Contact guidance classification: Class A
- Contact configuration: 4 NO + 2 NC
- Number of contacts: 6
- Contact form: 4 Form A + 2 Form B
- Nominal coil voltage: 48 V DC
- Coil supply type: DC
- Rated contact current: 6 A
- Nominal switching voltage: 250 V AC
- Rated AC-1 switching capacity: 1,500 VA
- Contact material: Silver tin oxide (AgSnO₂) with gold plating
- Typical operate time: 12 ms
- Typical release time: 10 ms
- Mechanical endurance: 10,000,000 operations
- Electrical endurance: 100,000 operations at nominal AC-1 load
- Operating temperature: −40 to +70 °C
- Protection rating: IP20
- Mounting type: 35 mm DIN rail
- Terminal type: Screw terminals
- Housing width: 22.5 mm
- Coil terminals: A1 / A2
- Normally closed contact terminals: 11–12 and 21–22
- Normally open contact terminals: 33–34, 43–44, 53–54 and 63–64
- Coil-to-contact impulse withstand voltage: 6 kV
- Dielectric strength between open contacts: 1,500 V AC
- Applicable contact standard: EN 61810-3
- Functional safety suitability: Applications up to SIL 2, subject to system design
- Performance level suitability: Applications up to PL d, subject to system design
- Country of origin: Italy
- EAN: 8012823421056
Reliable Safety Switching for Industrial Machinery
Forcibly guided contact relays are widely used in industrial safety-related control systems where switching reliability and contact monitoring are essential. Their mechanically linked normally open and normally closed contacts are designed so that opposing contact types cannot simultaneously remain closed under specified fault conditions, allowing suitable monitoring circuits to identify contact failures.
The Finder 7S.36.9.048.5420 combines four normally open switching contacts with two normally closed feedback contacts. This arrangement makes it particularly useful for safety relay expansion, monitored contactor switching and machinery control circuits requiring multiple controlled outputs.
The relay's Class A forcibly guided contact technology complies with EN 61810-3. Its construction supports integration into safety-related control architectures designed to achieve specified functional safety requirements, including applications targeting SIL 2 or Performance Level d, where supported by the complete system assessment.
Its 48 V DC coil makes the relay suitable for industrial installations using DC control supplies. The 6 A contact rating, gold-plated contact surfaces and screw terminal connections provide a practical combination of switching capability, reliability and installation convenience.
The Finder 7S.36.9.048.5420 is a forcibly guided relay component rather than a standalone safety controller. The achieved safety performance depends on the complete circuit architecture, external monitoring equipment, diagnostic coverage and application-specific risk assessment.
Typical Applications
- Industrial machinery safety-related control circuits.
- Emergency-stop switching arrangements with suitable external safety monitoring.
- Safety relay output expansion and interface assemblies.
- Machine guarding and interlock monitoring systems.
- Monitored contactor switching and feedback circuits.
- Industrial automation and electrical control cabinets.
- Machine tools and automated manufacturing equipment.
- Industrial lifting equipment and elevator control interfaces.
- Conveyor systems and material handling machinery.
- Packaging machinery and automated production lines.
- Safety barrier interfaces and monitored switching arrangements.
- OEM machinery control panels using 48 V DC control supplies.
