오므론 MY2N-GS 24VDC (5에이) 계전기

모델 코드 분석

MY2N-GS DC24V

1. 나의: Miniature General-Purpose 전력 릴레이 시리즈
2. 2: 2 극 (DPDT, 2아니요 + 2NC, 2 Form C contacts)
3. N: Equipped with built-in LED operation indicator and mechanical status window (green LED for DC coils)
4. GS: Upgraded new generation; direct drop-in replacement for discontinued MY2N-J
5. DC24V: Rated coil voltage DC 24 다섯

Extended variants:

MY2N-D2-GS DC24V: Built-in freewheeling diode (suppresses coil back EMF, ideal for direct PLC driving)

MY2IN-GS: Equipped with locking test lever for circuit inspection; Suffix -R denotes export version with fully compatible pin layout

2. 핵심 전기 사양

2.1 코일 매개변수 (DC24V)

정격전압: DC 24 다섯

코일 전력 소비: 0.7 여

Coil resistance (@23℃): ≈662 Ω

Operate voltage: ≤80% of rated voltage (≤19.2 VDC)

릴리스 전압: ≥10% of rated voltage (≥2.4 VDC)

Allowable voltage fluctuation range: 21.6～26.4 VDC

2.2 Contact Ratings (저항 부하, Nominal 5A)

연락처 구성: 2 sets of Form C changeover contacts (DPDT)

Contact material: Silver (Ag)

Rated switching capacity:

✅ 5A / 250뷔와

✅ 5A / 30DC에서

Maximum continuous carry current: 10에이 (static steady-state conduction; frequent switching not recommended)

Minimum applicable load: 1엄마 / 5VDC (suitable for low-level signal circuits)

Maximum switching capacity: 1100버지니아 (교류); 120여 (DC)

2.3 서비스 수명

기계적 수명: 50 백만 개의 작업 (18,000 주기/시간)

전기적 수명 (@5A resistive load): ≥500,000 operations (2,400 주기/시간)

Operate time ≤15ms; Release time ≤5ms

2.4 유전 강도 & 격리

Coil ↔ Contacts: 2000뷔와 / 1 분

Contacts of different poles: 2000뷔와 /1 분

NO and NC contacts within the same pole: 1000뷔와 /1 분

Insulation resistance ≥1000 MΩ (measured at 500VDC)

3. 핀 정의 (Standard 8-pin plug-in layout)

Compatible sockets: PYF08A-E / PYFZ-08-이자형

핀 13, 14: 코일 단자 (non-polarized for standard MY2N-GS; Polarity required for D2 version: Pin14=Positive, Pin13=Negative)

1st contact set: 9 (COM common), 1 (NC Normally Closed), 5 (NO Normally Open)

2nd contact set: 12 (COM common), 4 (NC Normally Closed), 8 (NO Normally Open)

Wiring principle: Energize coil pins 13-14 → 9-5 & 12-8 닫다; Power off → restore NC path 1-9 & 4-12

4. Compatible Socket List

옵션 액세서리: PYC-A1 locking clip (prevents relay loosening under vibration)

5. Ambient Operating Limits

작동 온도: -40℃ ~ +70℃ (결로가 없을 것, no icing)

보관온도: -55℃～+70℃

Humidity range: 5%～95%RH; condensation and long-term moisture ingress prohibited

Unsuitable environments: Heavy dust, 부식성 가스, sustained severe vibration

6. 선택 지침 & Critical Restrictions
7. 유도 부하 (솔레노이드 밸브, 접촉기 코일)

Standard MY2N-GS has no built-in surge suppression. For DC inductive loads, select MY2N-D2-GS with integrated diode. Fit external RC snubber circuits for AC inductive loads, otherwise rapid contact erosion will occur.

2. Overload forbidden

5A is the rated switching current. Avoid switching loads exceeding 6A continuously. Derate for motors and lighting loads with high inrush current.

3. Do not drive coil via high-frequency PWM

Continuous PWM switching causes contact chatter and burnout. Select SSR solid-state relays for high-frequency control scenarios.

4. Never mix AC & DC coil models

Powering DC coil relays with AC voltage leads to overheating and permanent damage; AC coil relays fail to pull in under DC supply.

5. Not applicable for safety circuits

No forced guided contacts. Use dedicated safety relays such as G9SX for emergency stop and safety interlock loops.

7. 일반적인 애플리케이션 시나리오

PLC signal expansion, pneumatic solenoid valve control, small contactor driving, control cabinet logic interlock, lighting circuit switching, signal transfer on automated production lines.

8. Drop-In & Upgrade Alternatives
9. Direct replacement for legacy model: MY2N-J DC24V (identical pin layout and compatible sockets)
10. Built-in freewheeling diode upgrade: MY2N-D2-GS DC24V
11. 4-contact variant within the same series: MY4N-GS DC24V (14-pin socket PYF14A-E required)

Application Industry & Scenario Overview: OMRON MY2N-GS DC24V 5A

Core positioning: DC24V controlled intermediate relay with 2 전환 연락처 (DPDT). Mainly used for signal transfer after PLC outputs and low-power load switching; rated 5A/250VAC contacts, suitable for low-voltage control of high-voltage circuits.

Limitation reminder: Cannot be used as safety relay; not fit for high-frequency switching, high-inrush loads, explosive or heavily corrosive environments.

1. 산업 자동화 (Largest Application Field)
2. Custom automation equipment

컨베이어 시스템, transfer modules, stop cylinder control, directional switching for small pneumatic solenoids; signal interlock for photoelectric and proximity sensors, indicator light control.

2. 공작기계

CNC auxiliary indicator lamps, lubrication pump on/off, door limit signal transfer, cooling fan control, auxiliary loops for tool changers.

⚠ Machine tools contain many inductive loads (솔레노이드 밸브). MY2N-D2-GS (내장 다이오드) is recommended to protect contacts and PLC modules.

3. 포장 & 인쇄 기계

Case sealers, 라벨러, film winding mechanisms, small actuator switching, alarm buzzers and signal light circuits.

4. 고무 & Plastic Injection Auxiliary Equipment

Hopper heating fans, material level alarm, signal transfer for conveyor start/stop control.

2. 공조 & 빌딩 자동화

Central air-conditioning control cabinets: 에어댐퍼 액츄에이터, differential pressure alarms, auxiliary fan control, anti-freeze protection signal interlock

Fresh air systems, 배기 팬, cooling tower auxiliary circuits

Zone lighting control; fire alarm signal transfer (only signal relay, NOT main fire protection circuit)

3. 기호 논리학 & 창고 장비

Automated warehouses, sorting conveyor lines, peripheral control cabinets for AGVs

컨베이어, sorting baffle cylinder control, logic expansion for photoelectric sensors

Indicator lights and alarm driver for warehouse access control

4. 수처리 & 환경 장비

투여 시스템, auxiliary control of small water pumps, high/low level signal transfer, aeration fan auxiliary circuits, signal switching for online water quality monitoring cabinets.

Environmental note: Anti-condensation treatment is mandatory inside humid cabinets to prevent contact oxidation and poor connectivity.

5. 에너지, EV Charging & PV Auxiliary Cabinets
6. Auxiliary fault alarm and cooling fan control for small PV combiner boxes
7. Signal transfer inside AC charging station control boards, fault indicator lights and auxiliary contactor coil driving

Forbidden: Do NOT switch high-voltage DC main circuits; only permitted for low-voltage control loops.

6. 식품기계 & Central Kitchen Equipment (Key Target Segment)

Vegetable washing equipment, 컨베이어, small exhaust fans, warning lights

Smart Canteen & Central Kitchen Electrical Cabinets: Alarm signal for transparent kitchen monitoring, automatic door control, auxiliary ventilation control, solenoid valve drive for cleaning machines

✅ Advantage: DC24V is standard industrial voltage, unified with HMI, PLC and sensor power supply, supporting standardized cabinet wiring.

7. Rail Support & Off-Highway Mobile Equipment

Onboard control cabinets for construction machinery, small tunnel ventilation control boxes, barrier and gate control cabinets; access control lock and traffic light drivers.

Vibration warning: Fit PYC-A1 locking clip to avoid relay disconnection.

8. 실혐실 & Testing Instruments

Aging test equipment, thermostats, small test fixtures; 솔레노이드 밸브, low-power heating loads and alarm signal switching.

Compatible Load Classification

✅ Recommended Loads

1. DC24V miniature solenoid valves, indicator lamps, buzzers
2. 220VAC small fans, lighting loads, AC contactor coils
3. Passive dry contact signal transmission

❌ Not Recommended / Strictly Forbidden Loads

1. High-power motors and heating elements (inrush current far exceeds 5A rating)
2. Loads with switching frequency >10 cycles/minute (accelerates contact wear)
3. Hazardous explosive zones (no explosion-proof certification)
4. Safety interlock and emergency stop circuits (use dedicated safety relays e.g. G9SX)

Selection Matching Advice

1. Driven by PLC transistor outputs → Priority: MY2N-D2-GS (내장 다이오드, prevents back EMF damage to PLC)
2. Driven by relay-output PLC → Standard MY2N-GS directly applicable
3. If driving inductive loads such as contactors and solenoids without diode version, fit external surge absorption components.

장착 치수: OMRON MY2N-GS DC24V (5에이) Official Standard Values

1. Relay Body (without socket, 8-핀 플러그인)

Maximum overall dimension (L × W × H): 28.0 × 21.5 × 36.0 mm

깊이 (front-back): ≤28 mm

너비 (left-right): ≤21.5 mm

키 (excluding pins): ≤36 mm

다리: 8 cylindrical plug pins, standard 8-pin layout for MY2 series.

2. Dimensions of Common DIN-mount Sockets

1) PYF08A-E (Standard widely used socket)

Overall dimension: 72 (디) ×22 (여) ×30 (시간) mm

설치: 35mm standard DIN rail or screw fixing

Screw mounting holes: 2 PC, Φ4.2×5 slotted hole, 중심 거리 44 mm

Terminal screw specification: M3

2) PYFZ-08-이자형 (Finger-safe safety socket)

Overall dimension: 72 (디) ×23 (여) ×31 (시간) mm

3) PYF-08-PU (Push-in spring terminal socket)

Overall dimension: 72 ×23 ×31 mm

Reference total height: Relay fully inserted into socket ≈64 mm (for cabinet layout reservation)

3. PCB Mount Alternative (Optional PY08-02 soldering socket)

For PCB soldering installation: PY08-02 PCB socket, fully pin-compatible with MY2N-GS.

4. Practical Layout Parameters for Control Cabinet Design
5. Minimum side-by-side mounting clearance: Can be installed adjacently; single unit occupied width 22 mm. Total width for N units ≈ 22 × N mm
6. Vertical cooling clearance recommendation: ≥8mm top & 맨 아래; ≥10mm for densely packed arrangements
7. Cabinet depth reservation: ≥75mm for socket + relay assembly (avoid interference with cabinet door)
8. Vibration-prone applications: Install PYC-A1 locking clip to prevent dislodging.
9. Important Remarks
10. MY2N-GS shares identical outline dimensions and fully compatible sockets with legacy MY2N-J; direct field replacement supported.
11. Narrow width of only 21.5mm, ideal for space-restricted control cabinets.
12. Avoid mounting adjacent to contactors and high-power power supplies; elevated ambient temperature shortens contact service life.