$ 81.88
Phoenix Contact EMG 22-REL/KSR-24/21AU relay ensures safe isolation, durable gold-plated contacts, and reliable 24V AC/DC switching for industrial automation.
The Phoenix Contact EMG 22-REL/KSR-24/21AU relay module is engineered for precise and reliable switching in industrial control applications. With a 24 V AC/DC input and integrated suppression circuitry, it ensures stable operation free from electrical interference. Its reinforced insulation and safe isolation between coil and contact sides enhance system safety, while the gold-plated AgNi contacts provide dependable performance for both small and large loads. Designed for DIN-rail mounting, this compact module is space-saving yet durable, making it an ideal choice for engineers looking for long service life and robust functionality in demanding environments.
The Phoenix Contact EMG 22-REL/KSR-24/21AU relay module offers a practical combination of reliability, safety, and efficiency. Its robust design supports stable switching performance in environments where electrical noise or heavy usage could otherwise cause failures. The gold-plated contacts extend service life and reduce maintenance downtime, while the LED status indicator enables quick troubleshooting. Flexible wiring options and screw connections simplify installation across a wide range of systems. Suitable for machine control, energy management, and building automation, this relay module helps engineers achieve both operational safety and cost-effective long-term performance.
Because it combines compact design, reliable switching, and proven Phoenix Contact quality in one module. The EMG 22-REL/KSR-24/21AU delivers safe isolation, gold-plated contacts for durability, and an integrated suppression circuit for noise-free performance. It’s the smart choice when you need dependable control in tight spaces without sacrificing long-term reliability.
Unstable switching, electrical noise, and safety risks often limit control system performance. This relay module solves those challenges by ensuring interference-free operation, reinforced insulation, and long service life—even under demanding loads. It gives engineers peace of mind, reducing maintenance downtime while guaranteeing precise switching where reliability truly matters.
| Feature | Details | Benefit |
|---|---|---|
| Nominal Input Voltage | 24 V AC/DC (range: 19.2–26.4 V) | Flexible integration into standard control systems |
| Contact Type | 1 changeover contact (AgNi + hard gold-plated) | Reliable switching from small signals to larger loads |
| Insulation & Safety | Reinforced isolation, 6 kV coil-contact separation | Protects sensitive control circuits from power surges |
| Protective Circuit | Integrated bridge rectifier and suppression circuit | Stable operation under electrical noise and interference |
| Switching Capacity | Up to 250 V AC/DC, 6 A | Handles diverse industrial load requirements |
| Service Life | ~30 million mechanical cycles | Long-lasting, reduces replacement frequency |
| Mounting Type | DIN rail (any position, compact 22.5 mm width) | Easy installation in dense control cabinets |
| Operating Temperature | -20 °C to +50 °C | Suitable for a wide range of industrial environments |
| Standards Compliance | IEC 60664-1, RoHS, REACH | Meets global safety and environmental standards |
Download EMG 22-REL/KSR-24/21AU 2947721 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918082840 |
| Tariff Number | 85364190 |
| Weight | 62.36 g (net) / 62.56 g (gross) |
| Country of Origin | Germany (DE) |
Automated packaging equipment requires strict safety monitoring. This relay module can act as the safety interlock between protective doors and the main controller. When a gate is opened, the coil remains de-energized, preventing accidental machine start-up. Its reinforced insulation ensures that high-power circuits remain isolated from low-voltage safety logic, safeguarding both operators and equipment. With fast switching times and long service life, the relay helps reduce downtime and ensures compliance with modern safety standards in production environments where frequent operator access is needed.
Modern buildings depend on precise ventilation and temperature management. The relay module allows automation controllers to reliably operate dampers, valves, and small motors on 24 V circuits. Its integrated suppression design prevents inductive spikes from disturbing sensitive sensors in the same system. This leads to smoother climate control, fewer controller resets, and less wear on connected devices. By acting as a robust interface between logic outputs and power loads, the relay improves long-term reliability in heating, ventilation, and cooling subsystems while keeping maintenance requirements low.
Material handling systems rely on accurate motor control to keep goods moving. The relay module provides the necessary switching interface between a low-power PLC output and the higher current demands of conveyor starters. Its safe coil-to-contact isolation prevents disturbances from propagating back into the control system, ensuring stable operation. Engineers benefit from its compact DIN-rail mounting, which saves space in crowded panels. With durable contacts designed for repetitive use, it supports high cycle rates, keeping conveyor lines productive and minimizing costly interruptions in warehouses or production facilities.
In many industries, process sensors generate weak signals that are not robust enough for direct integration with controllers. This relay module transforms those signals into clear on/off switching states, while providing isolation that shields the sensor from electrical noise or ground loops. Its gold-plated contacts ensure consistent performance even at low currents, making it ideal for precise detection tasks. By stabilizing signals before they reach the control system, the module enhances measurement accuracy and system reliability, supporting critical processes such as flow monitoring, pressure detection, or level control.
| Category | Model | Part Number | Description | Benefit |
|---|---|---|---|---|
| Relay Retaining Bracket | RIF-RH-4 | – | Bracket/clip for securing relays | Keeps relay modules stable in vibration-prone environments |
| Base Terminal | PLC-BPT | – | Base terminal for relay mounting | Provides organized, reliable wiring connection |
| Relay Base Socket | – | 2900961 | Socket for relay modules | Allows quick relay replacement without rewiring |
| Relay Base Socket | – | 2900934 | Alternate relay socket | Offers flexible installation options |
| Relay Base Socket | – | 2900450 | Heavy-duty socket design | Ensures durable mounting in industrial setups |
| Solid State / Hybrid Relay | – | 2982689 | Solid state/hybrid relay | Enables silent and fast switching for sensitive loads |
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Warranty – 1-year warranty for your peace of mind.
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Technical Support – Contact us for professional after-sales technical assistance.
