Phoenix Contact 2986575 Safety Coupling Relay

Phoenix Contact 2986575 (PSR-SCP-24DC/FSP2/2X1/1X2) Safety Coupling Relay

SIL 2 certified safety coupling relay, 24V DC power supply, 2 normally open + 1 normally closed contacts, integrated FSP2 test pulse filter, 17.5mm narrow-width DIN rail mounting. Suitable for safety shutdown applications. Order No. 2986575.

1. Model Segment Definition

2. Full Version Core Specification Table

3. Full Series Model List (PSR-SCP Safety Coupling Relay)

4. Competitor / Obsolete Model Replacement List

4.1 Same Brand Alternative Models (Directly Compatible)

4.2 Cross-Brand Competitor Comparison (Functionally Equivalent)

5. Application Environment & Industry Cases

Recommended Application Scenarios

Process Industrial Automation: Safety coupling between SIS digital output signals and field devices

Machine Safety Control: Safety shutdown loops for robotics, packaging machinery, printing machinery

Process Industry: Safety interlock systems for petrochemical, pharmaceutical, food & beverage industries

Automotive Manufacturing: Signal isolation and amplification for production line safety gates and emergency stop buttons

Logistics & Warehousing: Safety control loops for stackers in automated warehouses

Energy Industry: Safety shutdown control systems for wind power and PV inverters

Typical Application Cases

1. Chemical Reactor Safety Control System

Application Target: Connect PLC digital output to emergency shutdown valve actuator to realize safety state shutdown

Core Advantage: Integrated FSP2 test pulse filter avoids false valve actuation caused by PLC self-test pulses

Safety Configuration: Redundant design with 2 NO contacts; 1 NC contact for fault alarm

Effect: Meets SIL 2 safety level, ensures stable reactor operation and reduces false shutdown rate by 30%

2. Automotive Welding Robot Workstation

Application Target: Couple robot controller safety output with safety gate locking device

Core Advantage: 17.5mm narrow body saves cabinet space; plug-in terminals simplify maintenance

Safety Configuration: 2 NO contacts parallel control safety gate lock electromagnet; 1 NC contact connected to alarm lamp

Effect: Compliant with EN ISO 13849 Cat. 1, improves production line safety and efficiency

Not Recommended Scenarios

Applications requiring SIL 3 or higher: Adopt SIL 3 certified models such as 2986960

High vibration environments: Additional shockproof bracket (e.g. Phoenix ES-Mount series) required

Outdoor / humid environments: IP20 only for indoor dry use; outdoor installation needs protective enclosure

High voltage & high current control: Exceeding 5A/250V AC requires external contactor

6. Wiring Diagram & Terminal Definition (Engineering Design Essential)

Terminal Layout (Front View)

13  14  23  24  31  32  A1  A2

┌─────────────────────────────┐

│                             │

│  PSR-SCP-24DC/FSP2/2X1/1X2  │

│  2986575                    │

│                             │

└─────────────────────────────┘

Terminal Function Definition

Typical Application Circuit (PLC Safety Output Coupling)

PLC Safety Output → [2986575] → Field Actuator

(DO)         A1/A2  13/14/23/24    (Safety Gate / E-Stop)

↑        ↑

24VDC     31/32 → Alarm System

Wiring Key Points:

1. Power connection: A1 to 24V DC positive, A2 to negative; stable power supply required
2. Contact wiring: 13/14 and 23/24 NO contacts can be series or parallel for higher reliability
3. Alarm wiring: 31/32 NC contacts closed normally, open under fault; connect to indicator lamp or PLC input
4. Wiring standard: Separate safety loops from power loops; use shielded cable with single-end grounding of shield layer
5. Selection Formula & Quick Reference Rules

Selection Mnemonic

Safety coupling PSR‑SCP,

24DC for DC power adapt,

FSP2 filter stops false act,

2NO+1NC contact set exact,

17.5mm slim saves cabinet space fact,

SIL 2 grade keeps safety intact,

Order by 2986575 exact,

Plug-in wiring easy to correct,

Test pulse blocked, shutdown perfect.

Quick Reference Rules

1. Voltage Matching: Select 24DC for DC system or 24UC for wide-range voltage
2. Contact Configuration: XNO+YNC — X = enable paths (1-5), Y = alarm contacts (1-3)
3. Function Selection: FSP = test pulse filter; ESA = emergency stop/safety gate; URM = forced guided contacts
4. Safety Level: FSP2 = SIL 2; FSP/ESA/URM = SIL 3
5. Dimension Reference: 17.5mm narrow width ideal for compact control cabinets, saving 70% installation space
6. Maintenance Tip: Plug-in terminals allow module replacement without rewiring, reducing downtime
7. Air Freight Compliance & Certification Info (International Trade Essential)

Air Freight Compliance: Built-in electromagnetic coil, no lithium battery / super capacitor. Compliant with IATA DGR Class 9 non-restricted goods, shippable as general cargo.

Certifications:

CE: Compliant with EN 61508, EN ISO 13849

UL: Compliant with UL 508 Industrial Control Equipment Standard

CSA: Compliant with Canadian electrical safety standards

SIL 2 Functional Safety: TÜV Rheinland certified, meets IEC 61508

ATEX: Suitable for potentially explosive atmospheres (partial models)

Environmental Certification: Compliant with RoHS directive, free of lead, mercury, cadmium and other hazardous substances; meets REACH regulation requirements.

9. Purchasing & Inventory Information