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56681 Murrelektronik Terminal Module IP20 Automation Stainless Anti Vibration Connector

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56681 Murrelektronik Terminal Module IP20 Automation Stainless Anti Vibration Connector

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Brand Name :MURR Elektronik
Model Number :56681
Certification :3C
Place of Origin :Germany
MOQ :1
Price :USD 100-10000/Piece
Payment Terms :T/T
Supply Ability :1/piece in stock
Delivery Time :3-7
Packaging Details :50*50*50mm
Dimensions :Not specified
Current Rating :Not specified
Mounting Type :DIN Rail
Weight :Not specified
Protection Rating :IP20
Application :Industrial Automation
Communication Protocol :Not specified
Product Type :Electronic Components
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1.Product Overview

The ​Murr Elektronik 56681 MICO-Safety Relay Module​ is a DIN-rail mountable safety interface designed for Category 3/PLd safety circuits per ISO 13849. This compact (12.5mm width) solid-state device integrates ​dual-channel safety inputs​ and ​3 semiconductor safety outputs (OSSDs)​​ to monitor emergency stops, safety gates, or light curtains. Featuring galvanically isolated ​24VDC operation​ (±25% tolerance) and IP20 protection, it withstands industrial noise/vibration while enabling SIL 2 safety integrity without PLC programming. The integrated diagnostic LEDs provide instant fault localization for wiring errors or device failures. Ideal for machinery requiring space-optimized safety solutions with ≤100ms response time compliance.


2.​Key Technical Specifications

Critical safety parameters:

  • Safety Rating: PLd Cat.3 (ISO 13849-1), SIL 2 (IEC 62061)
  • Inputs: 2 dual-channel (24VDC, sink/source, cross-wire detection)
  • Outputs: 3 PNP OSSDs (0.5A @ 24VDC each, short-circuit protected)
  • Response Time: ≤60ms (E-stop detection to output shutdown)
  • Max. Switching Frequency: 100Hz
  • Diagnostic Coverage (DCavg)​: >97%
  • Operating Voltage: 20.4–28.8VDC
  • Ambient Temperature: -25°C to +60°C (70°C max with derating)
  • Connection: Spring-clamp terminals (0.25–2.5mm²)
  • MTTFd: >100 years (EN ISO 13849-1)
  • Standards: IEC 60204-1, UL 508

3.Primary Applications

Space-constrained safety integration:

  • Packaging Machinery: Conveyor E-stop monitoring with muting circuit control
  • CNC Equipment: Guard door interlocking for tool-change areas
  • Material Handling Robots: Collaborative cell safety gate supervision
  • Plastic Injection Molding: Clamp zone access prevention
  • Automated Assembly Lines: Two-hand control station verification
  • Test Benches: Emergency cutoff for high-voltage equipment
    Reduces safety panel space by 70% versus traditional relay stacks.

4.​Competitive Advantages

Innovative safety engineering:

  • Ultra-Slim Profile: 12.5mm width fits nano-panels (saves 80% vs. relays)
  • Auto-Diagnostics: Continuously monitors wiring shorts/open circuits
  • Global Voltage Compatibility: Operates down to 20.4VDC for voltage-drop resilience
  • Plug-and-Play: Pre-wired function blocks (no coding required)
  • Transient Immunity: 4kV surge protection (EN 61000-4-5 Level 3)
  • Multi-Module Synchronization: Up to 8 units cascade via bus connectors
  • Retrofit Ready: Direct replacement for electro-mechanical safety relays

5.​Functional Capabilities

Advanced monitoring logic:

  • Cross-Circuit Detection: Identifies faults between input channels
  • Configurable Reset Logic: Auto/manual reset via DIP switch selection
  • Start Interlock: Prevents automatic restart after power loss
  • Output Pulse Testing: Automated self-test of OSSD switching
  • Status Feedback: Dedicated N/O auxiliary contact for PLC signaling
  • Time Delays: Built-in 0.1–10s adjustable startup delay
  • Short-Circuit Resilience: PTC-based output current limiting
    Includes ​manual test button​ for safety circuit validation pre-commissioning.

Parameter Specification
Product Type M12 Female Socket (Receptacle), Field Wireable, L-Coding
Model Number 56681
Coding L-Coding (High-Current Power)
Contact Configuration 4-Pin
Gender Female (Socket Contacts)
Rated Voltage 63 V DC / 30 V AC
Rated Current 16 A (per contact)
Max. Power Transfer 2,000 W (at 63V DC)
Contact Resistance ≤ 3 mΩ
Insulation Resistance ≥ 1,000 MΩ (500 V DC)
Dielectric Strength 1,500 V AC (1 min)
IP Rating IP68 / IP69K (when mated)
Shielding Full metal shell with integrated strain relief
Housing Material Nickel-plated brass (corrosion-resistant)
Contact Material Bronze (gold-plated, 2 μm thickness)
Locking Mechanism Screw-lock (M12×1) with anti-rotation collar
Mating Cycles ≥ 500 cycles
Operating Temperature -40°C to +105°C
Cable Gland Range Ø 6–10 mm
Wire Gauge Compatibility 0.5–2.5 mm² (AWG 20–14)
Termination Method Tool-free spring-cage connection
Vibration Resistance 10–2,000 Hz, 100 m/s² (IEC 60068-2-6)
Shock Resistance 500 m/s² (11 ms, IEC 60068-2-27)
Agency Approvals UL 61076-2-111, CE, RoHS, REACH
Flammability Rating UL94 V-0
Mounting Style Panel mount (M12 nut lock)
Panel Cutout Diameter 12.5 mm
Tightening Torque 0.8–1.2 N·m
Typical Applications Servo drives, motors, heavy machinery, AGVs, high-power sensors

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56681 Murrelektronik Terminal Module IP20 Automation Stainless Anti Vibration Connector

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

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56681 Murrelektronik Terminal Module IP20 Automation Stainless Anti Vibration Connector

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56681 Murrelektronik Terminal Module IP20 Automation Stainless Anti Vibration Connector

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