1. ആമുഖം
This manual provides detailed instructions for the installation, operation, and maintenance of the Zusen YJ2N-LY series high power intermediate relay. The YJ2N-LY is a general-purpose voltage relay designed for various control applications, featuring two groups of high-power contacts and an action indicator light. Please read this manual thoroughly before using the product to ensure safe and correct operation.
2 സുരക്ഷാ വിവരങ്ങൾ
- Always disconnect power before installing, wiring, or performing maintenance on the relay.
- Ensure that the relay's voltage and current ratings match the application requirements.
- Wiring should be performed by qualified personnel in accordance with local electrical codes and regulations.
- Avoid exposing the relay to extreme temperatures, high humidity, or corrosive environments.
- Do not attempt to disassemble or modify the relay, as this may void the warranty and pose safety risks.
- The relay is sealed; do not open the casing.
3. ഉൽപ്പന്നം കഴിഞ്ഞുview
The Zusen YJ2N-LY is an 8-pin intermediate relay designed for general purpose use. It features two changeover (2C) contacts made of Ag alloy, capable of handling high power loads. An integrated indicator light provides visual feedback on the relay's operational status. This series is available for a wide range of AC and DC coil voltages.

Figure 3.1: Zusen YJ2N-LY Relay with Socket (Overall View)

Figure 3.2: Zusen YJ2N-LY Relay (Close-up)

Figure 3.3: Zusen YJ2N-LY Relay (Side View)
4 സ്പെസിഫിക്കേഷനുകൾ
| ഫീച്ചർ | സ്പെസിഫിക്കേഷൻ |
|---|---|
| മോഡൽ നമ്പർ | YJ2N-LY |
| സിദ്ധാന്തം | വാല്യംtagഇ റിലേ |
| ഉപയോഗിക്കുക | പൊതു ഉദ്ദേശം |
| Protect Feature | സീൽ ചെയ്തു |
| കോൺടാക്റ്റ് കോൺഫിഗറേഷൻ | 2C (2 Changeover contacts) |
| Contact Mechanism | Single contact |
| കോൺടാക്റ്റ് മെറ്റീരിയൽ | എജി അലോയ് |
| റേറ്റുചെയ്ത ലോഡ് (റെസിസ്റ്റീവ്) | AC110V 10A; DC24V 10A |
| Rated Load (Inductive, cos=0.4; L/R=7ms) | AC110V 7.5A; DC24V 5A |
| Rated Energizing Current | 10എ |
| Maximum Contact Voltage | AC250V; DC125V |
| Contact Current Maximum Value | 10എ |
| Maximum Switching Capacity (Resistive) | 100VA 240W |
| Maximum Switching Capacity (Inductive) | 440VA 96W |
| പ്രതിരോധ പ്രതിരോധം | Below 100mΩ |
| പ്രവർത്തന സമയം | 20ms-ൽ കുറവ് |
| സമയം പുനഃസജ്ജമാക്കുക | 20ms-ൽ കുറവ് |
| Maximum Switching Frequency (Mechanical) | 18,000 times/hour |
| Maximum Switching Frequency (Rated Load) | 24,000 times/hour |
| ഇൻസുലേഷൻ പ്രതിരോധം | Above 1000MΩ |
| വിത്ത് സ്റ്റാൻഡ് വോളിയംtage (Coil and Contact) | AC2,000V 50/60Hz 1min |
| വിത്ത് സ്റ്റാൻഡ് വോളിയംtage (Heteropolar Contacts) | AC2,000V 50/60Hz 1min |
| വിത്ത് സ്റ്റാൻഡ് വോളിയംtage (Same Pole Contacts) | AC1,000V 50/60Hz 1min |
| Vibration (Durability) | 10~55~10Hz; double ampലിറ്റ്യൂഡ് 1.0 മി.മീ |
| വൈബ്രേഷൻ (തകരാർ) | 10~55~10Hz; double ampലിറ്റ്യൂഡ് 1.0 മി.മീ |
| Shock (Durability) | 1,000m/s² (approx. 100G) |
| ഷോക്ക് (തകരാർ) | 200m/s² (approx. 20G) |
| Durability (Mechanical) | 50,000,000 തവണ |
| Durability (Electrical) | 500,000 തവണ |
| Ambient Temperature (Standard) | -55°C ~ 70°C (no freezing/condensation) |
| Ambient Temperature (With Indicator) | -40°C ~ 70°C (no freezing/condensation) |
| പ്രവർത്തന പരിസ്ഥിതി ഈർപ്പം | 5~85%RH |
| Available Coil Voltages | DC: 6V, 12V, 24V, 36V, 48V, 110V, 220V AC: 110V, 220V, 380V |
5. ഇൻസ്റ്റലേഷനും സജ്ജീകരണവും
The YJ2N-LY relay is designed for easy installation, typically into a compatible 8-pin relay socket. Ensure the socket is securely mounted before inserting the relay.
5.1 പിൻഔട്ട് ഡയഗ്രം
Refer to the bottom view diagram for correct pin identification and wiring. The coil terminals are typically pins 7 and 8. The contact pins are numbered 1 through 6, forming two independent changeover contact sets.

Figure 5.1: Zusen YJ2N-LY Relay Pinout Diagram (Bottom View)
5.2 വയറിംഗ് നിർദ്ദേശങ്ങൾ
- Identify Coil Terminals: Pins 7 and 8 are the coil terminals. Apply the rated control voltage (AC or DC, as per your relay model) across these pins to energize the relay. For DC models, ensure correct polarity if indicated (e.g., 7(-) and 8(+)).
- Identify Contact Terminals: The relay has two sets of changeover contacts. Each set consists of a Common (C), Normally Open (NO), and Normally Closed (NC) terminal. Refer to the specific pin numbering on your relay for exact assignments (e.g., 1-2-3 for one set, 4-5-6 for the other).
- കണക്റ്റ് ലോഡ്: Connect your controlled circuit's load to the appropriate contact terminals (NO or NC) and the common terminal.
- സുരക്ഷിത കണക്ഷനുകൾ: Ensure all wire connections are tight and properly insulated to prevent short circuits or loose connections.
- Insert Relay: Carefully align the relay pins with the socket and push firmly until it is fully seated.

Figure 5.2: Zusen YJ2N-LY Relay Bottom View (Pins)
6. ഓപ്പറേഷൻ
Once the relay is correctly installed and wired, apply the specified control voltage to the coil terminals (pins 7 and 8). When the coil is energized, the internal contacts will switch state (Normally Open contacts will close, Normally Closed contacts will open). The integrated indicator light will illuminate when the coil is energized, providing visual confirmation of the relay's active state. When the control voltage is removed, the coil de-energizes, and the contacts return to their original state.
7. പരിപാലനം
The Zusen YJ2N-LY relay is a sealed unit and requires minimal maintenance. However, periodic inspection is recommended to ensure optimal performance and longevity.
- വിഷ്വൽ പരിശോധന: Regularly check the relay and its socket for any signs of physical damage, discoloration, or loose connections.
- വൃത്തിയാക്കൽ: If dust or debris accumulates on the relay or socket, gently clean it with a dry, soft cloth. Do not use solvents or abrasive cleaners.
- ഇന്റഗ്രിറ്റിയുമായി ബന്ധപ്പെടുക: While the contacts are sealed, ensure the load current does not exceed the rated values to prevent premature wear or welding of contacts.
- പരിസ്ഥിതി വ്യവസ്ഥകൾ: പ്രവർത്തന അന്തരീക്ഷം നിശ്ചിത താപനിലയിലും ഈർപ്പത്തിലും ഉള്ളിലാണെന്ന് ഉറപ്പാക്കുക.
8. പ്രശ്നപരിഹാരം
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| Relay does not energize (no click, indicator light off) | നിയന്ത്രണ വോള്യം ഇല്ലtage to coil, incorrect coil voltage, faulty wiring, damaged coil. | നിയന്ത്രണ വോള്യം പരിശോധിക്കുകtage supply. Verify coil voltage matches relay specification. Inspect wiring for breaks or loose connections. Replace relay if coil is damaged. |
| Relay energizes but contacts do not switch (or switch intermittently) | Excessive load, worn contacts, faulty contacts. | Ensure load current is within rated limits. Replace relay if contacts are worn or faulty. |
| Indicator light does not illuminate when coil is energized | Faulty indicator light, incorrect coil voltage. | കോയിൽ വോളിയം പരിശോധിക്കുകtage. If relay functions correctly otherwise, the indicator light may be faulty (does not affect relay operation). |
| Relay remains energized after control voltage is removed | Contacts welded, residual magnetism, faulty coil. | Disconnect power immediately. Replace relay. Ensure load current is not exceeding ratings. |
9 ഉപയോക്തൃ നുറുങ്ങുകൾ
- When selecting a relay, always consider both the coil voltage (AC or DC) and the contact configuration (e.g., 2C) to match your application's needs.
- For applications requiring frequent switching, ensure the relay's electrical durability rating is sufficient to prevent premature failure.
- If using the relay with an inductive load, consider adding a snubber circuit or diode across the load to protect the relay contacts from arcing and extend its lifespan.
10. വാറൻ്റിയും പിന്തുണയും
വാറന്റി വിവരങ്ങൾ, സാങ്കേതിക പിന്തുണ, അല്ലെങ്കിൽ സേവന അന്വേഷണങ്ങൾ എന്നിവയ്ക്കായി, നിങ്ങളുടെ യഥാർത്ഥ വാങ്ങൽ പോയിന്റുമായോ നിർമ്മാതാവുമായോ നേരിട്ട് ബന്ധപ്പെടുക. വാങ്ങിയതിന്റെ തെളിവായി നിങ്ങളുടെ വാങ്ങൽ രസീത് സൂക്ഷിക്കുക.