تعارف
This manual provides essential information for the safe and effective use of the Idec RH4B-UAC120V Power Relay. This device is designed for reliable electrical switching applications, featuring a 4PDT contact configuration and operating on a 120VAC coil voltage. Please read this manual thoroughly before installation and operation.
حفاظتي احتياط
Always observe the following safety precautions to prevent electric shock, fire, or damage to the product:
- انسٽاليشن، وائرنگ، يا سار سنڀال کان اڳ پڪ ڪريو ته بجلي بند ٿيل آهي.
- All wiring should be performed by qualified personnel in accordance with local electrical codes.
- مقرر ڪيل حجم کان و notيڪ نه ووtagاي ۽ موجوده درجه بندي.
- Avoid installing the relay in environments with excessive moisture, dust, corrosive gases, or vibrations.
سيٽ اپ ۽ تنصيب
The RH4B-UAC120V Power Relay is designed for socket mounting. Follow these general steps for installation:
- چڙهڻ: Securely mount the appropriate relay socket (not included) in a stable location, typically on a DIN rail or panel.
- وائرنگ: Connect the control circuit to the coil terminals and the load circuit to the contact terminals. Refer to the wiring diagram provided with your relay socket or system documentation for specific pin assignments. Ensure all connections are tight and secure.
- داخل: Carefully insert the RH4B-UAC120V relay into its socket, ensuring all pins align correctly with the socket terminals. Apply gentle, even pressure until the relay is fully seated.
- تصديق: Before applying power, double-check all wiring connections for correctness and ensure no loose strands or short circuits are present.

Figure 1: Idec RH4B-UAC120V Power Relay. This image shows the compact design of the relay with its transparent casing, revealing the internal contacts and coil, and the multiple pins for socket connection at the base.
آپريٽنگ هدايتون
The RH4B-UAC120V Power Relay operates automatically based on the presence or absence of voltage across its coil terminals. It functions as a switch to control higher power circuits or to provide isolation between control and load circuits.
- ڪوئل چالو ڪرڻ: When 120VAC is applied to the relay's coil, an electromagnetic field is generated, causing the internal contacts to switch their state.
- رابطي جي سوئچنگ: The 4PDT (Four Pole Double Throw) configuration means the relay has four independent sets of contacts, each capable of switching between two positions (normally open to closed, or normally closed to open).
- غير فعال ٿيڻ: When the 120VAC supply to the coil is removed, the electromagnetic field collapses, and the contacts return to their original (de-energized) state.
Ensure the load connected to the contacts does not exceed the 10 Amps current rating to prevent damage to the relay and connected equipment.
سار سنڀال
The RH4B-UAC120V Power Relay is designed for long-term reliability with minimal maintenance. However, periodic inspection is recommended to ensure optimal performance and longevity.
- بصري چڪاس: Regularly check the relay and its socket for any signs of physical damage, discoloration, or loose connections.
- ماحولياتي چڪاس: Ensure the operating environment remains within specified conditions (temperature, humidity, absence of corrosive substances).
- صفائي: جيڪڏهن مٽي يا ملبہ گڏ ٿئي ٿو، ته نرم، سڪل ڪپڙي سان رلي ۽ ساکٽ جي ٻاهرين حصي کي نرميءَ سان صاف ڪريو. سالوينٽس يا رگڙيندڙ صاف ڪندڙ استعمال نه ڪريو.
- رابطي جي زندگي: Relays have a finite number of switching cycles. If the relay is used in a high-frequency switching application, consider periodic replacement based on manufacturer's recommendations or observed performance degradation.
مشڪلاتون
If the RH4B-UAC120V Power Relay does not function as expected, consider the following common issues and solutions:
| مسئلو | ممڪن سبب | حل |
|---|---|---|
| Relay does not energize (contacts do not switch) |
|
|
| Contacts do not switch reliably or chatter |
|
|
| Relay overheats |
|
|
If problems persist, consult a qualified electrician or contact Idec technical support.
وضاحتون
| وصف | قدر |
|---|---|
| ماڊل نمبر | RH4B-UAC120V |
| برانڊ | آئيڊيڪ |
| رابطي جو قسم | 4PDT (Four Pole Double Throw) |
| موجوده درجه بندي | 10 Amps |
| Coil Voltage | 120 وولٽ AC |
| آپريشن موڊ | خودڪار |
| ٺاهيندڙ | IDEC |
| طول و عرض (تقريبن) | 27.5 x 41 x 42 ملي ميٽر |
وارنٽي ۽ سپورٽ
For information regarding warranty coverage, technical support, or service, please refer to the official Idec website or contact your authorized Idec distributor. Keep your purchase receipt as proof of purchase.
آئيڊيڪ آفيشل Webسائيٽ: https://us.idec.com/





