Finder 7S.23.9.012.0210 – 7S Series Relay modules with forcibly guided contacts

Why Choose the Finder 7S.23.9.012.0210 Forcibly Guided Safety Relay?

The Finder 7S.23.9.012.0210 is a compact 12 V DC safety relay module with forcibly guided contacts, designed for industrial machinery, automation systems and safety-related control circuits. Part of the Finder 7S Series, this three-pole relay combines a 2 normally open (NO) + 1 normally closed (NC) contact arrangement with a 10 A rated contact current, screw terminals and integrated LED coil status indication.

Its forcibly guided contact mechanism provides a defined mechanical relationship between the normally open and normally closed contacts. This allows appropriately designed external monitoring circuits to detect certain relay contact failures, including welded contacts, making the device suitable for integration into engineered machinery safety systems.

The 12 V DC coil is ideal for compatible low-voltage control systems, while the relay's 250 V AC nominal switching voltage allows it to control appropriately rated electrical loads. The contacts use silver nickel with gold plating (AgNi + Au), supporting dependable switching performance within the manufacturer's specified operating conditions.

With a housing width of just 17.5 mm, the Finder 7S.23.9.012.0210 provides a space-efficient solution for industrial electrical cabinets. Its 35 mm DIN rail mounting, screw terminal connections and LED indication make it convenient to install, inspect and maintain.

Designed for professional applications requiring forcibly guided relay contacts, the Finder 7S.23.9.012.0210 is a practical choice for machine builders, control panel manufacturers, industrial automation engineers and safety system integrators.

Key Advantages

• Forcibly guided contacts: Support detection of specified contact faults in correctly designed safety monitoring circuits.
• 12 V DC coil: Suitable for compatible low-voltage industrial control supplies.
• 2 NO + 1 NC contact arrangement: Provides two normally open switching paths and one normally closed feedback path.
• 10 A contact rating: Offers switching capability for appropriately rated industrial loads.
• 250 V AC nominal switching voltage: Supports compatible AC control and switching applications.
• Gold-plated silver nickel contacts: Combine AgNi contact material with gold plating.
• Compact 17.5 mm width: Helps conserve valuable DIN rail space.
• DIN rail mounting: Supports straightforward integration into industrial electrical enclosures.
• Screw terminals: Provide conventional, secure conductor connections.
• LED coil status indicator: Makes relay energisation easier to identify during commissioning and troubleshooting.
• Low coil consumption: Rated coil power of approximately 600 mW.
• Fast relay operation: Typical operate and release times of 7 ms and 11 ms respectively.
• Long mechanical durability: Rated for 10 million mechanical operations.
• Wide temperature range: Designed for operation from -40 °C to +70 °C.
• IP20 enclosure rating: Suitable for installation inside appropriately rated control cabinets.
• Safety-related applications: Can be incorporated into properly designed and validated machinery safety circuits.

Key Features

• Finder 7S Series modular safety relay.
• Manufacturer part number: 7S.23.9.012.0210.
• Alternative product code: 7S2390120210.
• Forcibly guided contact mechanism.
• Nominal coil voltage: 12 V DC.
• Contact configuration: 2 NO + 1 NC.
• Total number of contacts: 3.
• Rated contact current: 10 A.
• Nominal switching voltage: 250 V AC.
• Contact material: Silver nickel with gold plating (AgNi + Au).
• Coil current: Approximately 47.1 mA.
• Coil power: 600 mW.
• Coil resistance: Approximately 254.8 Ω.
• Operate time: 7 ms.
• Release time: 11 ms.
• Screw terminal connections.
• Integrated LED coil status indicator.
• 35 mm DIN rail mounting.
• Compact 17.5 mm housing width.
• IP20 ingress protection.
• Operating temperature: -40 °C to +70 °C.
• EAN / GTIN: 8012823418124.

Forcibly Guided Contacts for Machinery Safety Monitoring

The principal feature of the Finder 7S.23.9.012.0210 is its forcibly guided contact design. This construction mechanically links the normally open and normally closed contacts so that they maintain a defined relationship during relay operation and under specified fault conditions.

In a safety-related control circuit, this mechanical linkage can help detect failures that might otherwise remain hidden. For example, if a normally open contact becomes welded closed, the linked normally closed contact cannot return to its closed position in the defined fault condition.

A suitably designed feedback or monitoring circuit can use this behaviour to identify the fault and initiate the appropriate response. Depending on the overall system architecture, this may include preventing a machine restart or indicating a maintenance fault.

The Finder 7S.23.9.012.0210 provides two normally open contacts for appropriately rated switching functions and one normally closed contact that may be incorporated into a feedback monitoring circuit.

Forcibly guided contacts are an important building block in safety-related control systems, but the relay itself is not a complete safety controller. The achieved safety performance depends on the entire system, including input devices, logic, output circuits, diagnostics and validation.

The device should therefore be selected by a competent designer who can assess the required safety performance and ensure that the complete application meets the relevant machinery safety standards.

2 NO + 1 NC Contact Configuration for Switching and Feedback

The Finder 7S.23.9.012.0210 has a three-pole contact arrangement consisting of two normally open contacts and one normally closed contact.

The two normally open contacts can be used to switch compatible control circuits, while the normally closed contact can support monitoring or feedback functions in a correctly designed system.

The relay has a 10 A rated contact current and a 250 V AC nominal switching voltage. The permissible switching load depends on the type of load, its electrical characteristics and the manufacturer's specified operating conditions.

Its silver nickel contacts with gold plating are designed for reliable switching within the specified ratings. Actual electrical contact life depends on the switching current, voltage, duty cycle and the characteristics of the connected load.

The specified 1,500 VA AC1 rated load provides a reference for resistive AC switching applications. Inductive loads, motor circuits and other demanding applications may require different ratings or additional switching equipment.

The relay's three-contact arrangement makes it particularly useful where a compact switching component with a defined contact guidance mechanism is required.

12 V DC Coil Operation with Low Power Consumption

The Finder 7S.23.9.012.0210 operates from a 12 V DC nominal coil supply, making it suitable for compatible low-voltage industrial control systems.

The coil has a specified nominal current of approximately 47.1 mA and a rated power consumption of 600 mW. These values should be considered when selecting the control power supply and any associated electronic output device.

The relay's must-operate voltage is 9.6 V DC, while its must-release voltage is 1.2 V DC. Correct coil supply voltage is essential for reliable switching and predictable operation.

With a typical operate time of 7 ms and a release time of 11 ms, the relay provides defined switching characteristics for appropriately designed control circuits.

The integrated LED indicator provides a visual indication of coil energisation, making it easier for maintenance engineers to check the state of the relay during commissioning and troubleshooting.

Compact DIN Rail Installation and Screw Terminal Wiring

The Finder 7S.23.9.012.0210 is designed for installation on a standard 35 mm DIN rail according to EN 60715.

Its compact 17.5 mm housing width allows efficient use of space in industrial control panels and electrical cabinets. The housing measures approximately 89.8 mm high and 60.8 mm deep.

The relay uses screw terminals for the coil and contact connections. Conductors should be prepared, terminated and tightened according to the manufacturer's installation instructions.

During installation, the two normally open contacts and the normally closed contact must be correctly identified and connected according to the circuit design. This is particularly important when the normally closed contact is used as part of a safety feedback monitoring arrangement.

The relay should be installed within a suitable electrical enclosure. Its IP20 rating provides basic protection against contact with internal parts but does not make the device suitable for unprotected outdoor or wet environments.

Commissioning should include verification of the 12 V DC coil supply, contact switching behaviour, feedback monitoring and the intended fault response of the complete safety-related system.

Installation, inspection and maintenance should be carried out by a competent electrical professional using appropriate isolation procedures and following the applicable machinery safety requirements.

Typical Applications

• Industrial machinery safety-related control circuits.
• Emergency-stop systems with suitable external safety monitoring.
• Machine control cabinets.
• Industrial automation panels.
• Forcibly guided relay feedback circuits.
• Safety-related output switching arrangements.
• Automated production machinery.
• Industrial conveyor systems.
• Packaging machinery.
• Material handling equipment.
• Industrial processing machinery.
• Machine tool control systems.
• Safety relay interface applications.
• Low-voltage 12 V DC control systems.
• Industrial equipment maintenance and refurbishment.
• Control applications requiring 2 NO + 1 NC forcibly guided contacts.