Item specifics
Description
G7SA-5A1B Product Overview
The G7SA-5A1B DC24 is a 6-pole forcibly guided safety relay from Omron's G7SA series, designed for safety control systems in industrial machinery. Featuring a 6-pole contact configuration (5a1b: 5 NO contacts + 1 NC contact), it has a contact rating of 6A and a coil voltage of 24VDC. The G7SA-5A1B DC24 utilizes a forcibly guided contact mechanism (certified to EN/IEC 61810-3 VDE) that ensures NO and NC contact groups switch simultaneously when the coil is de-energized, providing reliable operation even under fault conditions. Measuring just 50×13×24mm, the relay supports both PCB mounting and socket mounting via the P7SA series sockets. The G7SA-5A1B DC24 meets CE machinery directive requirements and is ideal for safety circuits in stamping machines, machine tools, and other production equipment.
G7SA-5A1B Core Features
Forcibly Guided Contact Mechanism： Features forcibly guided contacts certified to EN/IEC 61810-3 (VDE, EN50205 Class A), ensuring simultaneous switching of NO and NC contact groups to maintain reliable operation under fault conditions and reduce hazardous machine states.
6-Pole Contact Configuration： Offers 5a1b contact arrangement (5 NO + 1 NC / 5PST-NO + SPST-NC) with 6A contact rating (250VAC/30VDC resistive load) and 250VAC/125VDC maximum switching voltage. Contact material is silver alloy with gold plating, maximum contact resistance 100mΩ.
DC24V Coil： Rated coil voltage 24VDC, coil resistance 1152Ω, coil current 20.8mA. Operate voltage is 75% max. of rated voltage, release voltage is 10% min.. Coil power consumption is approx. 500mW.
Ultra-Slim Compact Design： Measuring just 50×13×24mm, its slim profile saves valuable control cabinet space for high-density installations. Weight approx. 25g.
Dual Mounting Options： Supports both direct PCB soldering and socket mounting with P7SA series sockets (e.g., P7SA-14F-ND) for DIN rail or panel installation.
Reinforced Insulation Structure： Features reinforced insulation between input/output and between certain poles for enhanced safety and reliability. Dielectric strength between coil and contacts is 4000VAC.
Wide Operating Temperature Range： Operates from -40℃ to 85℃, suitable for various industrial environments.
Long Service Life： Mechanical endurance up to 10,000,000 operations, electrical endurance up to 100,000 operations.
G7SA-5A1B Applications
Industrial Safety Control Systems： Safety circuits in stamping machines, machine tools, emergency stop and safety door monitoring circuits
Automated Production Lines： Control of safety door or emergency stop switches in assembly lines and automation equipment
Machinery Protection： Interlock circuits to prevent hazardous machine states
Process Control Systems： Signal isolation and safety control
Industrial Machinery and Production Lines： Widely used in control and safety systems for various industrial machinery
G7SA-5A1B Key Advantages
EN50205/Class A VDE Certified for Safety and Reliability： Certified to EN50205 Class A and VDE standards. The forcibly guided contact design ensures reliable operation even under fault conditions.
Ultra-Slim (13mm) Space-Saving Design： One of the world's narrowest safety relays at just 13mm wide, significantly saving cabinet space for high-density applications.
Forcibly Guided Contacts Ensure Safety： Forcibly guided mechanism ensures simultaneous NO/NC switching to reduce hazardous conditions during machine operation.
5NO/1NC Six-Pole Configuration for Flexible Applications： 5 NO + 1 NC contact configuration, meeting diverse safety control circuit design requirements.
Dual Mounting Options for Versatile Applications： PCB soldering or socket mounting with P7SA series sockets (e.g., P7SA-14F-ND) for DIN rail or panel installation.
Long Life and High Reliability： Mechanical life of 10,000,000 cycles and electrical life of 100,000 cycles for long-term stable operation and reduced maintenance costs.
Reinforced Insulation and Vibration Resistance： Dielectric strength of 4000VAC between coil and contacts, withstands shock up to 1000 m/s² for harsh industrial environments.
Transparent Case for Visual Status Check： Transparent case design allows visual inspection of internal contact status, simplifying field maintenance and troubleshooting.
Why Choose QIXINWEI
Years of experience in the electronics industry. Trusted by global customers.
Massive In-Stock Inventory – Ready to ship promptly
BOM Matching Service – One-stop solution, save time
PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs
Cost-Effective & Efficient – Better channel, better cost
A dedicated team makes your procurement smoother.
Contact us for BOM quotes or PCBA inquiries
FAQ
1. What is G7SA-5A1B DC24？
The G7SA-5A1B DC24 is a compact, slim safety relay with forcibly guided contacts from OMRON. It conforms to EN standards and is a core component for building safety interlock circuits to avoid hazardous machine states.
2. What are the key specifications of G7SA-5A1B DC24？
Key specifications include:
Contact Configuration: 5a1b (5 NO contacts + 1 NC contact), i.e. 5PST-NO / SPST-NC
Contact Current Rating: 6A
Switching Voltage: 250VAC / 125VDC
Coil Voltage: DC24V
Coil Resistance: 1152Ω
Coil Power Consumption: Approx. 500mW
Operating Temperature: -40°C ~ +85°C
3. What package does G7SA-5A1B DC24 use？
The relay本体 features PCB terminals and supports through-hole mounting or socketable (plug-in) mounting. It features a transparent case.
4. What applications is G7SA-5A1B DC24 suitable for？
This relay is suitable for safety circuits in various production machinery, including press machinery, machine tools, elevators, robotics, and packaging machinery. It features forcibly guided contacts and is VDE certified to EN/IEC 61810-3.
5. What development tools support G7SA-5A1B DC24？
As a standard industrial component, it does not require dedicated software tools.
6. What is the operating temperature range of G7SA-5A1B DC24？
The operating temperature range is -40°C to +85°C.
7. What are the key features of G7SA-5A1B DC24？
Forcibly guided contacts: Compliant with EN50205 Class A and VDE certified
Ultra-slim design: Only 13mm wide
Reinforced insulation between input and output
CE marking support (Machinery Directive)
Transparent case: Allows visual inspection of contact status
Socket options: Compatible with P7SA series sockets for DIN rail or panel mounting
8. What is the difference between G7SA-5A1B DC24 and G7SA-3A1B？
The main difference is the contact configuration and pole count:
G7SA-5A1B DC24: 6-pole, 5a1b (5NO + 1NC)
G7SA-3A1B: 4-pole, 3a1b (3NO + 1NC)
9. What are the alternative models for G7SA-5A1B DC24？
Same series other coil voltages: DC12V, DC18V, DC21V, DC48V, DC110V versions available
Same series other contact configurations: G7SA-4A2B (4a2b), G7SA-3A3B (3a3b)
10. What are the design considerations when using G7SA-5A1B DC24？
Safety relay socket required: For DIN rail or panel mounting, the P7SA series socket (e.g., P7SA-14F-ND 6-pole socket) must be purchased separately
Wiring confirmation: A flyback diode (e.g., 1N4007) must be connected in parallel across the coil terminals to absorb the back EMF during power-off, protecting the control contacts or drive circuit
Forcibly guided contacts: This is the core of a safety relay and must not be used as a substitute for ordinary relays in non-safety circuits