Phoenix Contact EMG Series: Emergency Stop Switches, Relays & Accessories
Product Positioning & Core Value
The Phoenix Contact EMG Series is a comprehensive portfolio of industrial safety devices, relay modules, and accessories designed for automation systems. These components provide critical safety functions, signal conditioning, and system protection across diverse industrial environments.
Key value propositions:
- Safety-Critical Applications: Emergency stop switches (EMG-KA) ensure immediate system shutdown in hazardous situations, meeting safety standards up to PL e/SIL 3 Phoenix Contact USA
- Reliable Signal Processing: Diode blocks (90-DIO) and relay modules (75/90-REL) enable efficient signal conversion and isolation for control systems
- Modular Design: Housing systems (LG) and covers (H series) allow flexible component integration while protecting against environmental factors
- Versatile Power Management: Power supply modules (NZG) and surge protection devices (VAR) ensure stable operation in fluctuating industrial power environments
Product Family Classification
1. Emergency Stop Switches
| Model | Order No. | Description | Key Features | Applications |
|---|---|---|---|---|
| EMG-KA | 2941510 | Emergency stop button | Red mushroom head, manual reset, NC contact, IP65 protection | Machine safety, production lines, hazardous equipment |
2. Marking & Identification
| Model | Order No. | Description | Key Features | Applications |
|---|---|---|---|---|
| EMG-GKS 12 | 2947035 | Adhesive marking label | 12mm width, 12×8mm marking area, self-adhesive | Device identification, wiring diagrams, panel labeling |
3. Relay Modules
| Series | Model Example | Order No. | Description | Technical Highlights |
|---|---|---|---|---|
| EMG 90 Series | EMG 90-B17 | 2946269 | Relay base for 17mm width | 17mm width, screw connection, 24V DC/230V AC compatible |
| EMG 90-2SD-D/LA | 2941523 | Double switch module | 2 changeover contacts, LED status, surge protection | |
| EMG 75 Series | EMG 75-B14 | 2947381 | Relay base for 14mm width | 14mm width, compact design, plug-in connection |
| EMG 75-LG | 2947378 | Relay housing | Base + cover, complete enclosure for relay modules | |
| EMG 45 Series | EMG 45-RELS/K2 | 2950666 | Relay socket with 2 contacts | K2 relay compatible, screw terminals, LED indication |
| EMG 45-SD-D/LA/SI | 2943738 | Single-pole switch module | 1 NO contact, LED, surge protection, screw connection |
4. Diode Modules
| Model | Order No. | Description | Technical Features | Applications |
|---|---|---|---|---|
| EMG 90-DIO 32P | 2954918 | Diode block (32 diodes) | Common cathode, 32×1N4007 diodes, screw connection | Power supply protection, reverse current blocking |
| EMG 90-DIO 32M | 2954934 | Diode block (32 diodes) | Common anode, 32×1N4007 diodes, 250V AC max | Motor control, signal isolation, voltage clamping |
| EMG 90-DIO 17E | 2954895 | Diode block (17 diodes) | 17 diodes, screw connection, compact 17mm width | Industrial automation, control cabinets |
5. Electronic Housings & Covers
| Series | Model Example | Order No. | Description | Key Features |
|---|---|---|---|---|
| EMG LG Series | EMG 100-LG | 2947080 | Complete housing | Base + cover, DIN rail mountable, IP20 protection |
| EMG 75-LG/O | 2941879 | Open housing | Base only, no cover, for PCB mounting | |
| EMG H Series | EMG 75-H 7.5MM | 2947954 | Covering hood | 7.5mm height, transparent design, dust protection |
| EMG 75-H 15MM | 2947967 | Covering hood | 15mm height, green (RAL 6021), contact protection |
6. Power Supply & Special Function Modules
| Model | Order No. | Description | Technical Features | Applications |
|---|---|---|---|---|
| EMG 75-NZG/G24/2 | 2942454 | Power supply module | 24V DC output, 2A capacity, noise filtering | Sensor power, low-voltage control circuits |
| EMG 90-DIO-Z2V4/8E/SO107 | 2941497 | Diode bridge module | 4-diode bridge, 8mm width, screw connection | Power rectification, voltage conversion |
Technical Specifications (Universal Parameters)
Emergency Stop Switches (EMG-KA)
- Contact Configuration: Normally closed (NC) contact, break-before-make action
- Protection Rating: IP65 (dust tight, water jet resistant)
- Operating Voltage: 24V DC/230V AC
- Current Rating: 10A max
- Reset Mechanism: Manual reset (twist to release)
- Compliance: EN 60947-5-1, EN ISO 13849-1 (PL e), IEC 62061 (SIL 3)
Relay Modules (75/90 Series)
- Width: 14mm (75-B14) to 17mm (90-B17)
- Supply Voltage: 24V DC or 230V AC
- Contact Rating: 10A/250V AC (resistive load)
- Termination: Screw connection (0.2-4mm² wire)
- LED Indication: Status monitoring (power/switching)
- Mounting: 35mm DIN rail
Diode Modules (90-DIO Series)
- Diode Type: 1N4007 (1A, 1000V)
- Configuration: Common cathode (P) or common anode (M)
- Voltage Rating: 250V AC max
- Current Rating: 1A per diode
- Operating Temperature: -25°C to +60°C
Application Scenario Analysis
1. Machine Safety & Emergency Shutdown
Recommended Products:
- EMG-KA (2941510) emergency stop button
- EMG 90-REL series relay modules for safety circuit expansion
Implementation Advantages:
- EMG-KA provides immediate system shutdown with manual reset capability, meeting stringent safety standards Phoenix Contact USA
- Relay modules interface emergency stop signals with PLCs and control systems, ensuring safe operation
2. Industrial Control Cabinet Integration
Recommended Products:
- EMG 90-DIO 32P (2954918) diode block
- EMG 75-LG (2947378) housing system
- EMG 75-NZG/G24/2 (2942454) power supply
Implementation Advantages:
- Diode blocks protect control circuits from reverse voltage and transient spikes
- Housing systems provide organized component placement and protection
- Power supply modules provide clean, regulated power for sensitive control components
3. Equipment Identification & Maintenance
Recommended Products:
- EMG-GKS 12 (2947035) adhesive marking labels
- EMG H series covering hoods (75-H 7.5MM/15MM)
Implementation Advantages:
- Marking labels simplify maintenance and troubleshooting through clear device identification
- Transparent covering hoods allow visual inspection without removing components
Selection Guide
Step 1: Determine Application Type
| Application Need | Recommended Series | Key Models |
|---|---|---|
| Machine safety/emergency stop | EMG-KA | EMG-KA (2941510) |
| Signal conditioning/isolation | 90-DIO Series | 90-DIO 32P/32M (2954918/2954934) |
| Relay switching/control | 75/90-REL Series | 90-B17 (2946269), 75-B14 (2947381) |
| Component protection/enclosure | LG/H Series | 75-LG (2947378), 75-H 7.5MM (2947954) |
| Power management | NZG Series | 75-NZG/G24/2 (2942454) |
Step 2: Verify Technical Parameters
- Emergency Stop: Ensure voltage compatibility (24V DC/230V AC) and contact rating (10A min)
- Relay Modules: Match width requirement (14mm/17mm), supply voltage, and contact capacity
- Diode Modules: Select common cathode (P) or common anode (M) based on circuit design
- Housing: Choose LG (complete) or LG/O (open) based on protection needs
Step 3: Compatibility Check
- Ensure modules fit standard 35mm DIN rails
- Verify wire gauge compatibility with terminal blocks (0.2-4mm² for most modules)
- For mixed systems, confirm voltage compatibility between different EMG series components
Installation & Maintenance Guide
Emergency Stop Switch (EMG-KA) Installation
- Mount directly on machine panel using front panel mounting
- Connect NC contact to safety circuit (typically to a safety relay or PLC input)
- Ensure proper grounding
- Verify operation: press button to stop system, twist to reset
Relay Module Installation
- Snap onto 35mm DIN rail
- Connect supply voltage (24V DC/230V AC) to designated terminals
- Connect load and control signals to appropriate contacts
- For housing-compatible modules, install in EMG LG series housing before mounting
Diode Module Installation
- Mount on DIN rail or directly on panel
- Connect input/output wires to terminals
- For common cathode modules, connect load to common terminal and diodes to individual inputs
Maintenance Tips
- Emergency Stops: Test monthly to ensure functionality
- Relays: Inspect contacts annually for wear (replace if pitted or burned)
- Diode Modules: Check for overheating (indication of overload or reverse voltage)
- Housings/Covers: Clean quarterly to maintain visibility and protection
EMG Series vs. Competing Products
| Feature | Phoenix EMG Series | Competitors | Advantage |
|---|---|---|---|
| Safety Compliance | PL e/SIL 3 certification | Basic safety standards | Higher safety integrity for critical applications |
| Modularity | Complete ecosystem (switches, relays, diodes, housings) | Fragmented solutions | Single-source integration, simplified procurement |
| Compact Design | 14-17mm width for relay modules | Bulkier alternatives | Space-saving in crowded control cabinets |
| Build Quality | Flame-retardant V0 housing, IP65 protection (EMG-KA) | Standard plastics, lower protection | Enhanced durability in harsh industrial environments |
| Ease of Installation | Plug-and-play DIN rail mounting | Complex installation | Reduced setup time and errors |
Summary & Next Steps
The Phoenix EMG Series delivers comprehensive industrial safety and control solutions with products ranging from emergency stop switches to signal conditioning modules. Key strengths include:
- Safety Leadership: EMG-KA emergency stop switches meet the highest safety standards (PL e/SIL 3)
- Versatile Functionality: Relay, diode, and power modules address diverse automation needs
- Integrated Design: Housing and marking systems provide complete solutions in a single series
Phoenix Contact EMG Series: Emergency Stop Switches, Relays & Accessories
Created on：2025-12-01 11:05
