Overview
The Omron G7SA-3A1B DC24 is a compact force-guided safety relay designed for machinery interlocking and hazardous machine status prevention. With 4-pole (3PST-NO/SPST-NC) configuration and VDE-certified forcibly guided contacts compliant with EN50205 Class A and EN/IEC 61810-3, this relay supports CE marking of machinery under the Machinery Directive. Operating on 24 VDC with a 6A rated current, it is ideal for industrial safety circuits requiring fast response and fail-safe protection.
Key Features
- Forcibly Guided Contacts: EN50205 Class A certified by VDE, ensuring positive mechanical coupling between springs and contacts for maximum safety.
- 4-Pole Configuration: 3 Normally Open + 1 Normally Closed contact configuration for flexible safety logic design.
- Compact Design: Compact and slim relay conforming to EN standards, optimizing panel space.
- Enhanced Wiring Efficiency: Push-in plus terminal sockets reduce wiring time by 60% compared to traditional screw terminals.
- Reinforced Insulation: Reinforced insulation between inputs and outputs with isolation between poles of different polarity for increased safety margins.
- Machinery Directive Compliance: Supports CE marking of machinery for European market integration.
Technical Specifications
- Coil Voltage: 24 VDC
- Coil Current: 15 mA
- Coil Resistance: 1.6 kohms
- Coil Power: 360 mW
- Contact Configuration: 3PST-NO, SPST-NC
- Switching Voltage: 250 VAC / 125 VDC
- Rated Current: 6 AMP
- Mounting Style: Socketable / Through Hole (PCB terminals)
- Weight: 0.05 lbs
- IP Rating: IP40
- Certification: EN50205 Class A, VDE certified
Typical Applications
- Machine tool safety interlocking circuits
- Emergency stop (E-stop) relay logic networks
- Guard door and access interlock safety systems
- Dual-channel safety monitoring and control
- Machinery control systems requiring certified fail-safe protection
- Industrial automation safety-related control systems (Category 3 per ISO 13849-1)
Compatibility & Replacements
Compatible With
- DIN rail-mounted sockets (P7SA series)
- PCB terminal designs with standard .2″ (5.08mm) pin spacing
- 24 VDC control circuits and PLC safety outputs
- EN/IEC 61810-3 compliant safety systems
- CE-marked machinery control systems (Machinery Directive 2006/42/EC)
Replaces / Drop-In Replacement For
- Previous Omron G7SA series relay designs requiring upgrade to Class A certification
- Legacy 4-pole safety relays requiring forcibly guided contact technology
Works With
- Omron control relays and modular relay sockets (P7SA-10F, P7SA-10F-ND series)
- Rockwell CompactLogix and ControlLogix safety I/O modules
- Siemens Safety Relay Modules and safety-rated PLC systems
- Standard 24 VDC industrial power supplies and UPS systems
- EN/IEC 61508 and ISO 13849-1 compliant safety control architectures
