Allen-Bradley 440R-N23114 Safety Relay

Basic Model Definition

Catalog Number: 440R-N23114

Internal Model Code: MSR126.1T

상표: Allen-Bradley (로크웰 오토메이션), Guardmaster Minotaur Series

수명주기: Active production model, manufactured in Czech Republic, standard 1-year warranty

2. 핵심 전기 사양

2.1 전원공급장치

정격전압: 24V AC/DC, operating range: 0.85~1.1× rated voltage (20.4~26.4V)

전력 소비: 4여, 50/60Hz와 호환

Terminals A1/A2: 전원 입력

2.2 Safety Inputs (Dual-channel 4-wire with cross short-circuit detection)

2 평상시 닫혀 있음 (NC) safety input paths (S11-S12 / S21-S22)

Supports dual-channel emergency stop, safety door switches and safety light curtains; built-in cross-channel short-circuit fault diagnosis

Maximum input loop resistance: ≤90Ω

2.3 Reset Circuit (S33-S34)

MSR126.1T supports automatic reset and manual reset dual modes

1. 자동 재설정: Short S33 and S34; outputs close automatically after faults are cleared
2. 수동 재설정: Connect an external normally open reset pushbutton to S33-S34; manual push is required to restore outputs

Difference from MSR126.1R: MSR126.1R only provides monitored manual reset without automatic reset function

2.4 Safety Output Contacts (Force-guided safety contacts complying with IEC 61810-3)

2 safety normally open (아니요) 콘택트 렌즈: 13-14, 23-24

Load Ratings:

DC-13: 6A/24V DC; 3A/24V DC (for frequent switching)

AC-15: 5A/250V AC

응답 시간: 대략. 15ms; Recovery Time: 100ms

No auxiliary alarm contacts

3. Safety Certification Ratings (Top Industry Standards)

ISO 13849-1: 범주 4 / PL 전자

IEC 61508 / IEC 61511: 실 3

안에 954-1: 안전 카테고리 4, 범주 0 멈추다

인증: CE, cULus, CCC, BG, C-Tick

4. Mechanical Dimensions & 설치

너비: 22.5mm (compact DIN rail mounting)

전반적인 차원: 110mm (시간) × 75mm (디) × 22.5mm (여)

무게: 160g

터미널: Fixed screw terminals (non-pluggable), IP20 보호 등급

작동 온도: -25℃ ~ +70℃

5. Front Panel LED Indicator Meanings
6. PWR (녹색): Steady on when power supply is normal
7. CH1 (녹색): Illuminated when Channel 1 input circuit is closed
8. CH2 (녹색): Illuminated when Channel 2 input circuit is closed

All three LEDs on → Safety output contacts closed; Any single channel open → Outputs cut off

6. 일반적인 애플리케이션 시나리오
7. Dual-channel emergency stop button circuit monitoring
8. 4-wire safety door switches (with short-circuit detection)
9. 안전 라이트 커튼 / light screen safety circuits
10. Safety cut-off for machine tools, automated production lines and packaging equipment

Suitable for equipment requiring high safety ratings of PL e / SIL3

7. Series Model Comparison for Selection

8. Brief Wiring Logic
9. Connect 24V AC/DC power to terminals A1/A2
10. Wire two NC safety switches (비상 정지 / door switches) in series to S11-S12 and S21-S22 respectively
11. Short-circuit S33-S34 for automatic reset; connect an NO pushbutton in series for manual reset
12. Wire the safety coil of main contactors in series across terminals 13-14 그리고 23-24
13. Disconnection of any safety input or cross-channel short-circuit will simultaneously open both NO outputs to cut power supply
14. Troubleshooting Guidelines
15. PWR LED 꺼짐: Power phase loss, insufficient voltage or loose wiring
16. Single CH1/CH2 LED off: Corresponding channel switch open or circuit wire breakage
17. Both CH1 and CH2 LEDs lit but outputs fail to close: Cross-channel short-circuit fault; power cycle to reset, or reset circuit not shorted / reset button not pressed
18. 접촉용접: Excessive output load; replace contactors with higher capacity

Full Specifications of Safety Output Contacts for Allen-Bradley 440R-N23114

1. Basic Contact Structure
2. 수량 & 유형: 2 independent redundant safety normally open (아니요) contacts at terminals 13-14 그리고 23-24; no auxiliary alarm contacts or delayed outputs
3. Contact Construction: Force-guided safety contacts (IEC 61810-3), dual-channel redundant mechanical interlock. Single contact welding cannot maintain circuit conduction, fulfilling Category 4 / PL 전자 / SIL3 safety architecture
4. 접촉 재료: AgSnO₂ silver tin oxide, 내아크성 및 용접 방지
5. Minimum Conducting Current: 10엄마 (ensures reliable circuit detection by contacts)
6. Rated Load Currents (Official Standard Load Categories)

2.1 AC 부하 (AC-15, standard load for electromagnetic contactors)

250뷔와: 6에이 (inductive-resistive load, cosφ=0.35)

UL B300 certified rating: 5에이 / 250뷔와

2.2 DC Load (DC-13, 솔레노이드 밸브 / DC 코일)

Frequent switching at 24V DC: 3에이 (standard switching rating)

Low-frequency light load (0.1헤르츠) at 24V DC: 맥스. 6A for short-term use (long-term high-frequency operation not recommended)

2.3 Continuous Thermal Current Ith (static carrying current without switching)

Maximum static continuous current per single contact: 6에이 (only for permanent conduction with rare break operations)

3. 전기적 내구성 & Operating Timing
4. 전기적 내구성 (220뷔와 / 4에이 / cosφ=0.35)

6A breaking capacity: 100,000 운영

4A light load: 500,000 운영

2. Safety Operation Timing

Response time from safety input open to contact break: 15ms 이하

Contact pull-in recovery time after fault clearance: 대략. 100ms

3. 유전체 내전압

Withstand voltage across open contacts: AC750V for 1 분

절연저항 (DC500V test): ≥1000MΩ

4. External Protection & Wiring Limitations
5. Recommended Fuse for Output Circuit

Slow-blow fuse: 6에이; Fast-acting fuse: 10에이. Over-rated fuses are prohibited to prevent contact ablation and welding

2. Applicable Wire Gauge: 0.2~2.5mm² solid / stranded copper wires; fixed non-pluggable screw terminals
3. Maximum Operating Voltage: 250뷔와 / 30DC에서; overvoltage is strictly forbidden
4. Contact Performance Matching Safety Ratings

ISO 13849-1: 범주 4, PL 전자 (independent cut-off via dual redundant contacts)

IEC 61508: SIL3; single contact failure will not disable safety cut-off function

Stop Category: 안에 60204-1 범주 0 hard cut-off stop

6. Quick Load Selection Table

tic Continuous | ≤250VAC / 30VDC | 6에이 | Circuits with permanent conduction and minimal breaking operations |