| 모델 세그먼트 | Full Designation | 설명 |
| 2981800 | 주문 번호. | 피닉스컨택트 global unique part number |
| PSR | PSR | Phoenix Contact PSR series safety relay (Programmable Safety Relay) |
| SCP | SCP | Safety function: dedicated for Emergency Stop / Safety Gate monitoring (Safety Control for E-Stop/Door) |
| 24DC | 24DC | 제어 전압: DC24V input |
| ESD | ESD | Function feature: Emergency Stop Delay |
| 4X1 | 4X1 | 연락처 구성: 4 콘택트 렌즈 (2 safety NO + 2 auxiliary NO), 1-channel safety input |
| 30 | 30 | Delay range: adjustable power-off delay 0.1s ~ 30s |
핵심 애플리케이션: Single-channel safety relay for Emergency Stop and Safety Gate monitoring. It complies with safety rating SIL 3 / Cat.4 PL e, with 0.1–30s adjustable power-off delay. Suitable for protection scenarios of automated equipment requiring safety stop delay.
- 핵심사양
| 매개변수 카테고리 | Detailed Specification | 비고 |
| Safety Performance | 안전 수준: 실 3 (IEC 61508) | Meets highest industrial safety requirements |
| 성능 수준: PL 전자, 범주 4 (ISO에서 13849-1) | ||
| PFHd: 2.5×10⁻⁸/h | ||
| Input Characteristics | 제어 전압: DC24V (19.2~28.8V) | Compatible with standard industrial 24V DC control systems |
| 입력 전류: Max 40mA | ||
| Input Channel: 1 safety input (NC/NO optional) | ||
| 재설정 모드: 오토매틱 / Manual selectable | ||
| Output Characteristics | Safety Contacts: 2 pcs N/O (Force-guided) | Force-guided safety contacts ensure fail-safe operation |
| 보조 연락처: 2 pcs N/O | ||
| 접촉 등급: AC-15: 230V/2.5A | ||
| DC-13: 24V/2.5A | ||
| Max Switching Voltage: 250V AC/DC | ||
| Max Switching Current: 6에이 | ||
| 지연 특성 | Power-off delay: continuously adjustable 0.1s~30s | Adapt to different equipment stopping time requirements |
| 설정 정확도: ±10% | ||
| 물리적 특성 | 치수: W22.5mm × H99mm × D121mm | Single-channel width, 캐비닛 공간 절약 |
| 무게: 대략. 0.22kg | ||
| 설치: 35mm DIN 레일 (안에 60715) | ||
| 배선: Plug-in screw terminals | ||
| 환경적 특성 | 작동 온도: -20~+60℃ | Industrial-grade environmental adaptability for harsh working conditions |
| 보관 온도: -40~+85℃ | ||
| 습기: 5~95%RH (비응축) | ||
| Vibration Resistance: 10~150Hz, 2g | ||
| 충격 저항: 15g | ||
| 안전 인증 | CE, UL, CSA, TÜV, ATEX | Compliant with international safety standards, globally applicable |
- 액세서리 목록 & Installation Guidelines
3.1 표준 액세서리
Safety relay unit ×1
Installation manual ×1
Terminal marking label ×1
Fixing clip ×2 (for DIN rail locking)
Delay adjustment screwdriver ×1 (special tool)
3.2 설치시 주의사항
- Mounting Requirement: Install on standard 35mm DIN rail; maintain ≥5mm clearance from adjacent modules for heat dissipation.
- 배선사양:
제어 회로: Connect DC24V to A1(+)、A2(-)
Safety Input: Connect E-stop / safety gate contact to S11、S12 (NC contact preferred)
안전 출력: Connect safety circuit (예를 들어. 접촉기 코일) 에게 13-14、23-24
보조 출력: Connect alarm / indication circuit to 31-32、41-42
- Reset Setting:
Auto Reset: Automatically restore after power cycle
수동 재설정: Requires external reset signal or manual reset button operation
- Delay Adjustment: Use the dedicated screwdriver to adjust the front panel potentiometer to set 0.1–30s power-off delay.
- Cross-model & Cross-brand Replacement
4.1 Phoenix Contact Same Series Alternative Models
| Model No. | 핵심 차이점 | 응용 시나리오 |
| 2981800 | 1 채널, 2 안전 + 2 보조 접점, 0.1–30s delay | Standard E-stop / safety gate monitoring (현재 모델) |
| 2981801 | 1 채널, 2 안전 + 2 보조 접점, 0.1–10s delay | Equipment with short stopping time |
| 2981802 | 1 채널, 2 안전 + 2 보조 접점, 0.1–1s delay | Fast stop equipment |
| 2981810 | 2 채널, 4 안전 + 2 보조 접점, no delay | Dual-channel redundant safety system |
| 2981820 | 1 채널, 2 안전 + 2 보조 접점, with alarm output | System requiring alarm indication |
4.2 Cross-brand Equivalent Solutions
| 상표 | 모델 | 주요 매개변수 | Compatibility Note |
| 슈나이더 | Zelio SR2P121BD | 1 채널, 2 safety contacts, 24DC에서, Cat.4 | Similar function, different wiring layout |
| 지멘스 | 3SK1111-1AB30 | 1 채널, 2 safety contacts, 24DC에서, 실 3 | Different dimensions, cabinet rearrangement required |
| 옴론 | G9SA-321-T15 | 1 채널, 2 safety contacts, 24DC에서, Cat.4 | Delay range 0.05–10s, slightly narrower |
| 씨줄 | MSR1275 | 1 채널, 2 safety contacts, 24DC에서, 실 3 | 더 높은 가격, fully identical function |
| 바이드뮐러 | DRM570730LT | 1 채널, 2 safety contacts, 24DC에서, Cat.4 | Fixed 1s non-adjustable delay |
- 선택 & 교체 지침
5.1 Core Selection Criteria
✅ Safety Level Matching: Ensure required safety rating (SIL/PL/Cat.) does not exceed product capability (실 3 / Cat.4 PL e).
✅ I/O Requirement:
입력: 1 channel sufficient; confirm NC or NO contact type.
산출: Verify 2 안전 + 2 auxiliary contacts meet control demands.
접점 용량: Ensure load current ≤2.5A (AC-15/DC-13).
✅ Delay Requirement: Confirm 0.1–30s adjustable range covers equipment stopping time.
✅ Reset Mode: Select auto or manual reset according to operation needs.
✅ Environmental Adaptation: Operating temperature ≤60℃ and humidity within industrial standard range.
5.2 치받이 & 교체 옵션
Option A: Same Series Function Upgrade
More channels: 2981800 → 2981810 (2 채널, 4 safety contacts)
Add alarm output: 2981800 → 2981820 (with alarm output)
Shorter delay: 2981800 → 2981801 (0.1–10s) 또는 2981802 (0.1–1s)
Option B: Migrate from PSRclassic to PSRmini (Space Optimization)
교체 모델: 2981900 (PSRmini-SCP-24DC/ESD/4X1/30)
이점: Only 17.5mm width (5mm narrower), 동일한 기능, 캐비닛 공간 절약.
Option C: Migrate from PSRclassic to PSRmodular (시스템 확장)
해결책: PSRmodular system + safety function modules
이점: Multi-channel expandable; integrates safety gate, 비상 정지, light curtain and other safety functions, suitable for complex safety systems.
5.3 Common Troubleshooting
| 결함 현상 | 가능한 원인 | 해결책 |
| Module indicator off | Control power disconnected or faulty | Check DC24V input, measure voltage within 19.2~28.8V |
| No safety output action | Safety input loop open | Check E-stop / safety gate contact wiring and loop continuity |
| Abnormal delay time | Improper potentiometer adjustment | Readjust with dedicated screwdriver; calibrate with timer recommended |
| Reset failure | Incorrect reset mode setting | Verify auto/manual reset configuration and check reset signal |
| 접촉접착 | Overload current exceeded | Measure load current; add intermediate relay if necessary |
피닉스컨택트 2981800 (PSR-SCP-24DC/ESD/4X1/30) is a single-channel safety relay with adjustable power-off delay, specially designed for emergency stop and safety gate monitoring, reaching the highest safety level SIL 3 / Cat.4 PL e. Its 22.5mm slim design and plug-in wiring facilitate installation and maintenance, while the 0.1–30s adjustable delay adapts to various equipment shutdown requirements. 선택 중, focus on safety rating, I/O 구성, delay range and reset mode. For upgrade, choose extended models in the same series or migrate to PSRmini / PSRmodular for space saving or system expansion.
Complete Model List of Phoenix Contact Safety Relays (Structured Classification)
- Model Naming Rule Overview
| 접두사 | 시리즈 코드 | Middle Code | 의미 | 접미사 | 의미 |
| PSR | Basic identifier for Phoenix safety relay | SCP | 비상 정지 / Safety Gate dedicated | 24DC | Control voltage DC24V |
| PSR | 안전 릴레이 | SPP | Standard Safety Protection | ESD | Emergency Stop Delay (0.1-30에스) |
| PSR | 안전 릴레이 | MC | Mini Compact | 4X1 | 연락하다: 4 아니요 (2 안전 + 2 보조자) |
| PSR | 안전 릴레이 | MS | Monitoring Safety | 30 | Delay time range (0.1-30에스) |
| PSR | 안전 릴레이 | UNI | Universal Configurable | PI | Push-in spring terminal |
| PSR | 안전 릴레이 | MM | Motion Monitoring | SC | 나사식 터미널 |
- PSRclassic Series (Standard Safety Relays)
2.1 비상 정지 / Safety Gate (SCP Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-SCP-24DC/ESD/4X1/30 | 2981800 | 1Ch, 2Safety+2Aux, 0.1-30s delay | SIL 3/Cat.4 PL e | Standard E-stop / Safety Gate |
| PSR-SCP-24DC/ESD/4X1/10 | 2981801 | 1Ch, 2Safety+2Aux, 0.1-10s delay | SIL 3/Cat.4 PL e | Short stop time equipment |
| PSR-SCP-24DC/ESD/4X1/1 | 2981802 | 1Ch, 2Safety+2Aux, 0.1-1s delay | SIL 3/Cat.4 PL e | Fast stop equipment |
| PSR-SCP-24DC/ESD/5X1/1X2/300 | 2981428 | 1/2Ch, 3Safety+1NC+2Aux, 0.1-300s delay | SIL 3/Cat.4 PL e | Long delay shutdown system |
| PSR-SCP-24UC/ESA4/3X1/1X2/B | 2963763 | 2Ch, 3Safety+1Aux, no delay | SIL 3/Cat.4 PL e | Dual-channel redundant safety system |
| PSR-SCP-24DC/MXF3/4X1/2X2/B | 2903257 | Multi-Ch, 4Safety+2Aux, 3 safety functions | SIL 3/Cat.4 PL e | Multi-function safety monitoring |
2.2 Standard Safety Function (SPP Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-SPP-24DC/SDC4/2X1/B | 2901426 | 1Ch, 2Safety contacts, no delay | SIL 3/Cat.4 PL e | Basic safety loop |
| PSR-SPP-230AC/ESAM2/3X1/1X2/B | 2901431 | 1Ch, 3Safety+1Aux, AC230V | SIL 3/Cat.4 PL e | AC power supply system |
| PSR-SPP-24UC/URM/3X1/3X2 | 2901427 | 1Ch, 3Safety+3Aux, universal voltage | SIL 3/Cat.4 PL e | Multi-voltage compatible system |
| PSR-SPP-24DC/ESD/3X1/1X2/30 | 2981427 | 1Ch, 3Safety+1Aux, 0.1-30s delay | SIL 3/Cat.4 PL e | Delay-type safety system |
2.3 Light Curtain Monitoring (SCR Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-SCR-24DC/3X1/1X2 | 2981500 | 2Ch, 3Safety+1Aux, dedicated for light curtain | SIL 3/Cat.4 PL e | Standard light curtain monitoring |
| PSR-SCR-24DC/4X1/2X2 | 2981501 | 2Ch, 4Safety+2Aux, dedicated for light curtain | SIL 3/Cat.4 PL e | Complex light curtain safety system |
| PSR-SCR-24DC/5X1/1X2 | 2981502 | 2Ch, 5Safety+1Aux, dedicated for light curtain | SIL 3/Cat.4 PL e | High-density safety output |
2.4 Two-Hand Control (SCT Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-SCT-24DC/2X1/1X2 | 2981600 | 2Ch, 2Safety+1Aux, two-hand control | SIL 3/Cat.4 PL e | Standard two-hand operation |
| PSR-SCT-24DC/3X1/2X2 | 2981601 | 2Ch, 3Safety+2Aux, two-hand control | SIL 3/Cat.4 PL e | Complex two-hand operation |
- PSRmini Series (Micro Compact, 17.5mm Width)
3.1 Basic Safety Function (MC Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-MC32-3NO-1NC-24-230UC-SP | 2700525 | 1/2Ch, 3Safety+1NC, universal voltage | SIL 3/Cat.4 PL e | General safety monitoring |
| PSR-MC34-3NO-1DO-24DC-SP | 2700548 | 1/2Ch, 3Safety+1diagnostic output, DC24V | SIL 3/Cat.4 PL e | System with diagnostic output |
| PSR-MC45-3NO-1DO-24DC-SC | 1082024 | 1Ch, 3Safety+1diagnostic output, DC24V | SIL 3/Cat.4 PL e | Compact E-stop system |
| PSR-MC22-2NO-1NC-24DC-SP | 2700500 | 1Ch, 2Safety+1NC, DC24V | SIL 3/Cat.4 PL e | Small safety loop |
3.2 Safety Monitoring Module (MS Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-MS21-1NO-1DO-24DC-SC | 2702192 | 1Ch, 1Safety+1digital output, DC24V | SIL 3/Cat.4 PL e | Safety controller expansion |
| PSR-MS31-2NO-1DO-24DC-SP | 2702200 | 1Ch, 2Safety+1digital output, DC24V | SIL 3/Cat.4 PL e | Safety status monitoring |
- PSRmodular Series (Modular Safety System)
4.1 Main Control Module
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-UNI-L-1X4NO-1DO-24DC-PI | 1487648 | 1/2Ch, 4Safety+1DO, 구성 가능 | SIL 3/Cat.4 PL e | Universal configurable safety system |
| PSR-UNI-L-2X4NO-2DO-24DC-PI | 1487649 | 2Ch, 8Safety+2DO, 구성 가능 | SIL 3/Cat.4 PL e | Complex safety system |
| PSR-UNI-L-1X2NO-1NC-1DO-24DC-PI | 1487650 | 1/2Ch, 2Safety+1NC+1DO | SIL 3/Cat.4 PL e | System with NC output |
4.2 Expansion Module
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-EXT-L-1X4NO-24DC-PI | 1487651 | 4-safety output expansion | SIL 3/Cat.4 PL e | Output expansion |
| PSR-EXT-L-1X2NO-1NC-24DC-PI | 1487652 | 2Safety+1NC output expansion | SIL 3/Cat.4 PL e | Mixed output expansion |
- PSRmotion Series (Motion Monitoring Safety Relay)
5.1 Zero Speed / OverSpeed Monitoring
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-MM25-1NO-2DO-24DC-SC | 2702355 | Sensorless zero-speed monitoring, 3-위상 모터 | SIL 3/Cat.3 PL e | Motor zero-speed safety protection |
| PSR-MM35-1NO-2DO-24DC-SC | 2702356 | Overspeed monitoring, 3-위상 모터 | SIL 3/Cat.3 PL e | Motor overspeed safety protection |
| PSR-MM45-1NO-2DO-24DC-SC | 2702357 | Zero-speed + overspeed dual monitoring, 3-위상 모터 | SIL 3/Cat.3 PL e | Full motor speed monitoring |
5.2 Rotation Direction Monitoring
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-MD25-1NO-2DO-24DC-SC | 2702360 | Rotation direction monitoring, 3-위상 모터 | SIL 3/Cat.3 PL e | Motor rotation direction safety control |
- Safety Coupling Relays (PSR-SCP/SPP Series)
| 모델 | 주문 번호. | 핵심 매개변수 | 안전 수준 | 애플리케이션 |
| PSR-SCP-24DC/FSP/1X1/1X2 | 2981700 | 1Safety+1Aux contact, coupling function | 실 3 | Safety signal isolation |
| PSR-SCP-24DC/FSP2/2X1/1X2 | 2981701 | 2Safety+1Aux contact, coupling function | 실 3 | Dual-channel safety isolation |
| PSR-PS21-1NO-1NC-24DC-SC | 2981702 | 1Safety+1NC contact, coupling function | 실 3 | Safety signal switching |
- 키 선택 매개변수 비교
| 매개변수 카테고리 | Key Index | 선택 팁 |
| 안전 수준 | 실 1-3, Cat.1-4, PL a-e | Determined by equipment risk assessment; max support SIL 3/Cat.4 PL e |
| Input Channel | 1 채널 / 2 채널 | Single channel for basic safety; dual channel for redundant safety |
| 연락처 구성 | Quantity of safety / 보조 접점 | ≥2 safety contacts recommended; auxiliary contacts for alarm & indication |
| 제어 전압 | DC24V / AC230V / 만능인 | Match on-site control system power supply |
| Function Feature | Delay / Diagnostic / Cross-circuit detection | E-stop requires delay; complex system needs diagnostic function |
| 장착 폭 | 17.5mm / 22.5mm / 27.5mm | Choose PSRmini (17.5mm) for limited cabinet space |
| 배선 유형 | 나사 / Push-in spring | Push-in for frequent wiring; screw type for vibration environment |
- 보충 노트
8.1 시리즈 포지셔닝
PSRclassic: Standard type with complete functions, width starting from 22.5mm, suitable for conventional safety applications.
PSRmini: Micro compact type, only 17.5mm width, 캐비닛 공간 절약.
PSRmodular: Configurable modular system, suitable for complex safety systems with expandable functions.
PSRmotion: Dedicated for motion monitoring, applicable to motor zero-speed / overspeed / rotation direction safety control.
8.2 교체 정보
Old models are gradually phased out; priority recommended to select models manufactured after 2020.
Some models are discontinued; refer to Phoenix Contact official website or technical support for replacement.
8.3 안전인증
Full series certified by CE, UL, CSA, TÜV, IEC를 준수 61508 and EN ISO 13849-1.
Partial models with ATEX certification for explosive atmosphere applications.
접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지





















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