Phoenix Contact 2986588 Safety Relay

Model Segment Definition (Phoenix Contact PSR Series Naming Rule)

Segment	Meaning	Description
PSR	Product Safety Relay	Product series identifier for Phoenix Contact safety relays
SPP	Safety Plug-in Push-in	Safety type, pluggable push-in terminal design
24DC	24V DC	Rated control circuit supply voltage: 24V DC (allowable range: 20.4V~26.4V)
FSP2	Filtered Safe Pulse 2	Integrated test pulse filter, suitable for SIL 2 safety integrity level applications
2X1	2 Normally Open safety contacts	2-channel normally open safety contact output (enable current path)
1X2	1 Normally Closed signal contact	1-channel normally closed signal contact (feedback loop)
2986588	Order Number	Global unique material / order number of Phoenix Contact

Core Specification Parameters

General Information

Parameter	Value	Remarks
Product Type	Safety Coupling Relay	Used for safe shutdown applications
Product Series	PSRclassic	Phoenix Contact classic safety relay series
Safety Level	SIL 2 (High/Low Demand Mode)	Compliant with IEC 61508, EN 50156
Performance Level	PL c	Compliant with EN ISO 13849 (Control Unit DC ≥ 90%)
Stop Category	0	Immediate stop without delay
Mechanical Life	10×10⁶ switching cycles	Electromechanical relay with mechanically linked contacts, compliant with IEC/EN 61810-3
Width	17.5mm	Slim design, saves control cabinet space
Ingress Protection	IP20 (Body) / IP54 (Wiring Area)	Meets industrial environmental protection requirements
Ambient Temperature	-20°C ~ 55°C (Operating)	Derating is recommended for extreme conditions

Electrical Characteristics

Parameter	Value	Remarks
Rated Control Voltage	24V DC (-15%/+10%)	20.4V~26.4V
Typical Power Consumption	1.32W	Approx. 55mA current consumption
Typical Pick-up / Drop-out Time	50ms / 50ms	Standard response speed
Reset Time	1s	Safety state recovery time
Max Switching Frequency	0.5Hz	Suitable for low-frequency safety switching applications
Surge Protection	Suppression Diode (33V, A1-A2)	Built-in protection circuit
Operation Indication	1× Yellow LED	Visual power status indication

Contact Parameters

Contact Type	Quantity	Max Switching Voltage	Max Continuous Current	Max Rated Power
Normally Open Safety Contact	2 channels	250V AC/DC	5A	1250VA (AC) / 120W (DC)
Normally Closed Signal Contact	1 channel	250V AC/DC	100mA	25VA (AC) / 22W (DC)
Contact Material	—	AgCuNi + 0.2µm Gold Plating	Improve conductivity and corrosion resistance
Min Switching Voltage	—	15V AC/DC	Ensure reliable switching for low-level signals

Connection & Mounting

Parameter	Value	Remarks
Connection Type	Pluggable Push-in Terminal	Fast wiring, easy maintenance
Conductor Cross-section	0.2mm~1.5mm (Solid/Flexible)	AWG 24~16
Stripping Length	8mm	Standard wire stripping length
Mounting Type	DIN Rail Mounting	Compliant with EN 60715 standard rail
Mounting Position	Any orientation	No installation direction restriction

Accessory List

Accessory Name	Part No.	Application
CRIMPFOX 6 Crimping Tool	1212034	Crimping tool for flexible conductors with wire end ferrules
PSR-ESS-ACC-CB1-C3 Module Bracket	1221747	Fix and combine multiple PSR modules
PACKB.PSR-24DC/FSP2/2X1/1X2 Package	9052052	Original product package including installation manual
PSR-ESS-M0-H110 Actuator	1221757	Actuator matched with safety relay

Alternative & Cross-Brand Comparison

Brand	Model	Safety Level	Contact Configuration	Width	Application Scenario
Phoenix Contact	PSR-SCP-24DC/FSP2/2X1/1X2 (2986575)	SIL 2	2NO+1NC	17.5mm	Alternative to PSR-SPP series; SCP = Screw terminal version
Siemens	3TK2825-1BB40	SIL 2	2NO+1NC	22.5mm	Safety coupling relay, 24V DC, screw terminal
Schneider	XPSBC3121	SIL 2	2NO+1NC	22.5mm	Safety coupling relay, 24V DC, spring terminal
Omron	G9SA-321-T075	SIL 2	2NO+1NC	22.5mm	Safety relay module, 24V DC, screw terminal
Phoenix Contact	PSR-SPP-24DC/FSP/2X1/1X2 (2986957)	SIL 3	2NO+1NC	17.5mm	Upgraded replacement with higher safety level

Selection Guidelines & Alternative Solutions

Selection Decision Tree

Safety Level Matching: Confirm required SIL level for the application (this model fits SIL 2); for SIL 3, select PSR-SPP-24DC/FSP/2X1/1X2 (2986957).
Contact Configuration Requirement: Verify whether 2NO+1NC meets control loop demands; select expansion modules if more contacts are needed.
Wiring Preference: Choose Push-in (SPP) vs Screw (SCP) terminals according to wiring habits and vibration environment.
Space Limitation: 17.5mm slim design for compact cabinets; 22.5mm series available if space is sufficient.
Diagnostic Requirement: Integrated test pulse filter simplifies validation testing per IEC 61508.

Alternative Recommendation

Requirement Change	Recommended Alternative Model	Advantage
Upgrade to SIL 3	PSR-SPP-24DC/FSP/2X1/1X2 (2986957)	Higher safety integrity for more demanding applications
Screw Terminal Version	PSR-SCP-24DC/FSP2/2X1/1X2 (2986575)	More stable connection, suitable for vibration environments
More Normally Open Contacts	PSR-SPP-24DC/FSP/3X1/1X2	3NO+1NC for expanded control capability
Lower Power Consumption	PSR-SPP-24DC/FSP2/2X1/1X2-LP	Low-power version, ideal for battery-powered systems
Modular Expansion	PSR-SPP-24DC/URML4/3X1/1X2/B (2903584)	Contact expansion module for combination with main unit

Partial Full Model List of PSR-SPP Series Safety Coupling Relays

Model	Part No.	Safety Level	Contact Configuration	Features
PSR-SPP-24DC/FSP/1X1/1X2	2981981	SIL 3	1NO+1NC	1 safety NO contact + 1 signal NC contact
PSR-SPP-24DC/FSP/2X1/1X2	2986957	SIL 3	2NO+1NC	2 safety NO contacts + 1 signal NC contact
PSR-SPP-24DC/FSP2/2X1/1X2	2986588	SIL 2	2NO+1NC	Integrated test pulse filter for SIL 2 applications
PSR-SPP-24DC/FSP/3X1/1X2	2986958	SIL 3	3NO+1NC	3 safety NO contacts + 1 signal NC contact
PSR-SPP-24UC/FSP/2X1/1X2	2986959	SIL 3	2NO+1NC	24V AC/DC universal voltage for multi-power environments
PSR-SPP-48DC/FSP/2X1/1X2	2986961	SIL 3	2NO+1NC	48V DC control voltage for specific industrial systems

Core Application Scenarios

PLC Digital Output Safety Isolation: Convert standard PLC digital output to SIL 2 safety signal.

Safe Shutdown Control: Applicable to safety doors, emergency stop buttons and other safety disconnection occasions.

Test Pulse Compatible System: Built-in test pulse filter, compatible with safety controllers with test pulse function.

Industrial Automation Safety Loop: Provide safety redundant control for production lines, robots, packaging machinery and other equipment.

Full Model List of Phoenix Contact Safety Relays (Authoritative Classification Version)

Product Series Overview

Phoenix Contact safety relays are mainly divided into 5 series, covering full application demands from compact fixed-function to programmable modular systems:

Series	Features	Width	Safety Level	Core Application
PSRclassic	Traditional type, full functions, industry standard design	From 17.5mm	SIL 2/3, PL c/e	Emergency stop, safety door, light curtain, two-hand control
PSRmini	Ultra-slim design, saves 70% space	6mm / 12mm	SIL 2/3, PL c/e	Space-limited small equipment
PSRcompact	Compact type, high integration	From 12.5mm	SIL 2/3, PL c/e	Standard safety functions with cost performance
PSRmodular	Programmable safety system, flexible expansion	From 17.5mm	SIL 3, PL e	Complex safety control, multi-axis motion monitoring
Safety Coupling Relay	Safety isolation for digital output signals	17.5mm	SIL 2/3	PLC output to safety loop conversion

PSRclassic Series (Traditional Safety Relay)

2.1 Emergency Stop / Safety Door Monitoring (Core Models)

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Connection Type	Features
PSR-SCP-24DC/ESA4/2X1/1X2	2981019	SIL 3, PL e	2NO+1NC	24V DC	Screw Terminal	Dual-channel, auto/manual reset, cross-circuit detection
PSR-SPP-24DC/ESA4/2X1/1X2	2981021	SIL 3, PL e	2NO+1NC	24V DC	Plug-in Push-in	Same as above, push-in wiring for easy maintenance
PSR-SCP-24UC/ESA4/3X1/1X2/B	2963763	SIL 3, PL e	3NO+1NC	24V AC/DC	Screw Terminal	With expansion interface, 3 safety contacts
PSR-SPP-24UC/ESAM4/2X1/1X2	2900526	SIL 3, PL e	2NO+1NC	24V AC/DC	Plug-in Push-in	Dual-channel, manual reset, start monitoring
PSR-SCP-24DC/ESP4/2X1/1X2	2981020	SIL 3, PL e	2NO+1NC	24V DC	Screw Terminal	With test pulse, suitable for light curtain / safety mat

2.2 Two-Hand Control Type

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Features
PSR-SCP-24DC/2HS4/2X1/1X2	2981022	SIL 3, PL e	2NO+1NC	24V DC	Two-hand control, dual-channel, auto reset
PSR-SPP-24DC/2HS4/2X1/1X2	2981023	SIL 3, PL e	2NO+1NC	24V DC	Two-hand control, pluggable push-in terminal
PSR-SCP-48DC/2HS4/3X1/1X2	2981024	SIL 3, PL e	3NO+1NC	48V DC	Two-hand control with 3 safety contacts

2.3 Test Pulse Compatible Type (FSP Series)

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Features
PSR-SPP-24DC/FSP2/2X1/1X2	2986588	SIL 2	2NO+1NC	24V DC	Integrated test pulse filter for SIL 2
PSR-SPP-24DC/FSP/2X1/1X2	2986957	SIL 3	2NO+1NC	24V DC	Test pulse compatible, SIL 3 level
PSR-SCP-24DC/FSP2/2X1/1X2	2986575	SIL 2	2NO+1NC	24V DC	Screw terminal version with test pulse filter

PSRmini Series (Ultra-Slim Safety Relay, 6mm/12mm)

3.1 6mm Ultra-Slim Basic Type

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Width	Features
PSRmini-6-24DC/1NO/1NC	2963912	SIL 2, PL c	1NO+1NC	24V DC	6mm	1 safety contact + 1 signal contact
PSRmini-6-24DC/2NO	2963913	SIL 2, PL c	2NO	24V DC	6mm	2 normally open safety contacts
PSRmini-6-24UC/1NO/1NC	2963914	SIL 2, PL c	1NO+1NC	24V AC/DC	6mm	Universal voltage, space saving

3.2 12mm Extended Type

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Width	Features
PSRmini-12-24DC/2NO/1NC	2963915	SIL 3, PL e	2NO+1NC	24V DC	12mm	2 safety contacts + 1 signal contact
PSRmini-12-24DC/3NO	2963916	SIL 3, PL e	3NO	24V DC	12mm	3 normally open safety contacts
PSRmini-12-48DC/2NO/1NC	2963917	SIL 3, PL e	2NO+1NC	48V DC	12mm	48V DC control for specific systems

Safety Coupling Relay (PSR-PS Series)

Used for safety isolation of PLC digital output signals, converting standard output to safety signal.

Model	Part No.	Safety Level	Contact Configuration	Control Voltage	Connection Type	Features
PSR-PS22-1NO-1NC-24VDC-SC	2702524	SIL 3	1NO+1NC	24V DC	Screw Terminal	1 enable current, 1 confirm current
PSR-PS23-1NO-1NC-24VDC-SC	2702663	SIL 3	1NO+1NC	24V DC	Screw Terminal	With test pulse filter, safe shutdown
PSR-PS24-2NO-1NC-24VDC-PI	2702664	SIL 3	2NO+1NC	24V DC	Plug-in Push-in	2 enable current, 1 confirm current
PSR-PS25-1NO-2NC-24VDC-SC	2702665	SIL 3	1NO+2NC	24V DC	Screw Terminal	1 enable, 2 signal feedback

PSRmotion Series (Speed Monitoring Safety Relay)

Applied to zero-speed / overspeed monitoring for rotating equipment protection.

Model	Part No.	Safety Level	Monitoring Function	Input Type	Contact Configuration
PSR-MM20-2NO-1DO-24DC-SP	2702375	SIL 3, PL e	Speed / Zero Speed	2 Proximity Sensors	2NO+1DO
PSR-MM21-2NO-1DO-24DC-SP	2702376	SIL 3, PL e	Overspeed	1 Encoder	2NO+1DO
PSR-MM22-2NO-1DO-24DC-SP	2702377	SIL 3, PL e	Underspeed	1 Encoder	2NO+1DO
PSR-MM23-2NO-1DO-24DC-SP	2702378	SIL 3, PL e	Speed Range	1 Encoder	2NO+1DO

PSR-M Series (Configurable Safety Module)

Flexible safety function configuration, supporting multiple safety I/O combinations.

Model	Part No.	Safety Level	Input / Output	Features
PSR-MC34-3NO-1DO-24DC-SP	2700548	SIL 3, PL e	Dual-channel Input, 3NO+1DO	Emergency stop / safety door, cross-circuit detection
PSR-MC38-2NO-1DO-24DC-PI	1009832	SIL 3, PL e	Dual-channel Input, 2NO+1DO	Plug-in push-in, auto/manual reset
PSR-UNI-L-2X2NO-2DO-24DC-SC	—	SIL 3, PL e	2-channel Input, 4NO+2DO	Multi-function with configurable safety logic
PSR-UNI-L-1X4NO-1DO-24DC-PI	1487648	SIL 3, PL e	1-channel Input, 4NO+1DO	Single-channel operation, 4 safety contacts

PSRmodular Series (Programmable Safety System)

Highly flexible modular safety control system supporting distributed configuration.

Module Type	Model Example	Part No.	Function	Safety Level
Main Module	PSR-M-M30-0000-0000	1091000	System control, up to 8 safety functions	SIL 3, PL e
Digital Input	PSR-M-EF1-SDI8-SDO4-DO4-PI	1104985	8DI+4SDO+4DO	SIL 3
Analog Input	PSR-M-EF7-SAI4-PI	1104986	4-channel safety analog input (0-10V)	SIL 3
Motion Monitoring	PSR-M-EF8-MOT2-PI	1104987	2-axis speed / position monitoring	SIL 3
Gateway Module	PSR-M-GW-PROFNET	1104988	PROFINET communication interface	SIL 3