Finder 7S.34.9.012.4310 – 7S Series Relay modules with forcibly guided contacts

Why Choose the Finder 7S.34.9.012.4310 Force-Guided Safety Relay?

The Finder 7S.34.9.012.4310 is a professional 12 V DC force-guided safety relay module designed for industrial automation, machinery safety and monitored electrical control applications. Part of the Finder 7S Series, this four-contact relay features 3 normally open (NO) contacts and 1 normally closed (NC) contact, providing multiple switching outputs together with a mechanically linked feedback contact for use in appropriately engineered safety-related control systems.

Featuring a 6 A rated contact current, 250 V AC nominal switching voltage and 12 V DC operating coil, the Finder 7S.34.9.012.4310 combines electromagnetic switching with force-guided contact technology. Its mechanically linked contacts are designed to prevent normally open and normally closed contacts from being simultaneously closed under specified fault conditions, allowing suitable external monitoring circuits to detect certain relay failures, including welded contacts.

The module incorporates screw terminals, an integrated illuminated status indicator and standard DIN rail mounting. With IP20 ingress protection and an operating temperature range of −40 to +70 °C, it provides a practical solution for industrial control cabinets, machine safety assemblies and automation equipment requiring reliable switching and contact-state monitoring.

Key Advantages

• Force-guided contact technology: Mechanically linked contacts support fault detection in suitable safety-related control architectures.
• 3 NO + 1 NC configuration: Provides three normally open switching outputs and one normally closed feedback contact.
• 12 V DC operating coil: Suitable for compatible low-voltage industrial control systems.
• 6 A contact rating: Supports switching of appropriately rated industrial control loads.
• 250 V AC nominal switching voltage: Provides compatibility with suitable AC control circuits.
• Contact-state monitoring: Supports detection of certain contact-welding faults through external monitoring.
• Screw terminals: Provide secure, conventional electrical connections for industrial panel wiring.
• Integrated illuminated indicator: Enables quick visual confirmation of relay energisation.
• Low coil power consumption: Nominal coil power of 800 mW.
• Fast switching performance: Typical operate and release times of 12 ms and 10 ms.
• Silver tin oxide contacts: Provide robust switching characteristics for compatible electrical loads.
• DIN rail mounting: Simplifies integration into industrial electrical control cabinets.
• IP20 protection: Suitable for installation inside appropriately protected enclosures.
• Wide operating temperature range: Supports use in demanding industrial environments.
• Four-contact construction: Combines multiple switched circuits and feedback monitoring in one relay module.
• Finder 7S Series design: Provides a specialised relay solution for industrial safety-related applications.

Key Features

• Finder 7S Series modular force-guided relay.
• Product family: 7S.34.
• Manufacturer part number: 7S.34.9.012.4310.
• Four-contact electromagnetic relay construction.
• 3 normally open (NO) contacts.
• 1 normally closed (NC) contact.
• Force-guided, mechanically linked contact arrangement.
• Nominal coil voltage: 12 V DC.
• Rated contact current: 6 A.
• Nominal switching voltage: 250 V AC.
• Contact material: silver tin oxide (AgSnO).
• Nominal coil power consumption: 800 mW.
• Nominal coil current: 64.7 mA.
• Coil resistance: 185.5 Ω.
• Must-operate voltage: 9.6 V DC.
• Must-release voltage: 1.2 V DC.
• Typical operate time: 12 ms.
• Typical release time: 10 ms.
• Integrated illuminated operating indicator.
• Screw-terminal connections.
• DIN rail mounting.
• IP20 ingress protection.
• Operating temperature range: −40 to +70 °C.
• RoHS-compliant construction.
• Suitable for monitored industrial control and machinery safety applications.

Reliable Force-Guided Switching for Industrial Safety Applications

Industrial machinery and automated equipment often require electrical switching devices that operate predictably while providing reliable information about their contact states. In safety-related systems, faults such as welded relay contacts can prevent equipment from returning to its intended condition. The Finder 7S.34.9.012.4310 supports monitored control applications through its force-guided contact arrangement.

The relay provides three normally open contacts for switching suitable electrical circuits and one normally closed contact that can be incorporated into an external feedback monitoring circuit. Because the contacts are mechanically linked, the relay is designed to prevent normally open and normally closed contacts from being simultaneously closed under specified fault conditions. This characteristic allows appropriately designed monitoring equipment to detect certain contact failures.

Its 12 V DC coil is suitable for compatible low-voltage control supplies. With a nominal coil power consumption of 800 mW, the relay provides efficient electromagnetic operation. The 6 A rated contacts and 250 V AC nominal switching voltage support a variety of appropriately rated control applications, provided the connected loads comply with the manufacturer's switching limits.

The relay has a typical 12 ms operate time and 10 ms release time, supporting predictable switching behaviour. These values describe relay operation under specified conditions; the total response time of a safety-related control system must account for all associated controllers, monitoring devices and output equipment.

The screw-terminal construction provides a familiar wiring method for industrial panel builders and maintenance engineers. An integrated illuminated indicator gives local confirmation of relay energisation, while DIN rail mounting allows convenient installation alongside safety controllers, contactors, PLCs and other automation components.

Important: A force-guided relay is a component used within a safety-related control system, not a complete safety controller. The achieved Performance Level or Safety Integrity Level depends on the complete system architecture, diagnostic coverage, component reliability, fault monitoring and validation against applicable machinery safety standards.

Typical Applications

• Industrial machinery safety: Force-guided switching within properly designed machine safety circuits.
• Emergency-stop control systems: Switching and feedback functions within suitable monitored safety architectures.
• Machine guard interlocking: Contact monitoring and output switching in compatible guard control systems.
• Industrial automation: Reliable relay operation in automated manufacturing equipment.
• 12 V DC control systems: Integration into compatible low-voltage industrial control installations.
• Conveyor systems: Safety-related switching and feedback monitoring.
• Packaging machinery: Integration into suitable machine control and safety assemblies.
• Material-handling equipment: Monitored switching in industrial transport systems.
• Automated warehouses: Safety-related relay functions in storage and retrieval equipment.
• Hoists and cranes: Compatible switching and monitoring functions in lifting equipment controls.
• Lift and escalator systems: Force-guided relay applications in appropriately engineered control systems.
• Industrial process equipment: Control circuits requiring mechanically linked relay contacts.
• Safety control cabinets: DIN rail-mounted switching and feedback modules.
• Machine refurbishment: Replacement of compatible Finder 7S.34 relay modules.
• PLC-controlled machinery: Integration with suitable safety controllers and monitoring equipment.