MY2NJ HH52PL 5A 8-Pin General Purpose Relay
MY2NJ HH52PL 5A 8-Pin General Purpose Relay
Model Name: HH52P / MY2NJ
Capacity:80A/250VAC,30VDC
Electrical Life:1000000
Mechanical Life:100000000
Coil Voltage DC/AC:12V,24V,48V,110V,220V
Operate Time:<25ms
Release Time:<25ms
Ambient Temperature:-25-+55℃
Insulation Resistance:≥500MQ(500VDC)
Model Name: HH52P / MY2NJ
Capacity:80A/250VAC,30VDC
Electrical Life:1000000
Mechanical Life:100000000
Coil Voltage DC/AC:12V,24V,48V,110V,220V
Operate Time:<25ms
Release Time:<25ms
Ambient Temperature:-25-+55℃
Insulation Resistance:≥500MQ(500VDC)
1. Product Overview
The MY2NJ (HH52PL series) electromagnetic relay is a high-performance, general-purpose control relay designed for low-voltage control circuits in industrial and commercial applications. It is one of the most widely used intermediate relays, offering 5A switching capacity, 8-pin configuration, and compatibility with standard MY-series relay sockets.
Built with a transparent protective cover, the relay allows visual inspection of contact status and includes an LED indicator for quick operation verification. The corresponding socket base enables fast, tool-free installation on 35mm DIN rails, simplifying wiring and maintenance. With multiple coil voltage options (12V/24V DC, 110V/230V AC), the MY2NJ relay is suitable for PLC control systems, automation panels, power distribution cabinets, and various electronic control circuits.
2. Key Features
- Standard MY2NJ / HH52PL Configuration: 8-pin, 2-pole changeover contacts (DPDT) for versatile control applications.
- Wide Coil Voltage Options: Available in 12V DC, 24V DC, 110V AC, and 230V AC to match common control system voltages.
- 5A Contact Rating: Rated for 5A at 250V AC / 30V DC, suitable for switching small motors, solenoid valves, lights, and other low-power loads.
- Transparent Cover & LED Indicator: Clear plastic cover allows visual inspection of contacts; built-in LED confirms coil power status for quick troubleshooting.
- Corresponding Socket Base Included: Standard DIN rail mountable socket (PYF08A or equivalent) with screw terminals for easy wiring and installation.
- High Reliability Contacts: Silver alloy contacts provide long mechanical and electrical life, suitable for frequent switching applications.
- Compact & Space-Saving: Miniature design saves panel space, ideal for high-density control cabinets and PLC systems.
- Noise-Free Operation: Low coil power consumption and quiet switching, suitable for indoor and office environments.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | MY2NJ / HH52PL (MY-series intermediate relay) |
| Contact Configuration | DPDT (2NO + 2NC) |
| Rated Contact Current | 5A (resistive load) |
| Rated Contact Voltage | 250V AC / 30V DC |
| Coil Voltage Options | 12V DC, 24V DC, 110V AC, 230V AC (other voltages available on request) |
| Coil Power Consumption | Approx. 0.9W (DC) / 1.2VA (AC) |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | 1000V AC (1min between contacts and coil) |
| Mechanical Life | ≥10,000,000 operations |
| Electrical Life | ≥100,000 operations (at rated load) |
| Operating Temperature | -25°C ~ +60°C |
| Mounting Type | DIN rail socket mount (35mm standard) |
| Compliance | CE certified, meets IEC 61810-1 standards |
| Model name | Contact form | Rated current | Contact pins | Adaptation base |
|---|---|---|---|---|
| MY2NJ(HH52P) | Two open
Two Closed |
5A | Small 8 feet | PYF08A |
| MY3NJ(HH53P) | Three open
Three Closed |
5A | Small 11 feet | PYF11A |
| MY4NJ(HH54P) | Four open
Four Closed |
5A | Small 14 feet | PYF14A |
| LY2NJ(HH62P) | Two open
Two Closed |
10A | Big 8 feet | PTF08A |
| LY3NJ(HH63P) | Three open
Three Closed |
10A | Big 11 feet | PTF11A |
| LY4NJ(HH64P) | Four open
Four Closed |
10A | Big 14 feet | PTF14A |
4. Working Principle
The MY2NJ electromagnetic relay operates using an electromagnetic coil to control mechanical contacts:
- De-Energized State: The coil is not powered, and the normally closed (NC) contacts are connected while the normally open (NO) contacts are open.
- Energized State: When voltage is applied to the coil, the generated magnetic field pulls the armature, switching the contacts: NO contacts close and NC contacts open.
- Control Function: This allows the relay to use a small control current (from PLC or control circuit) to switch a larger load current (to motors, valves, lights), enabling low-power control of high-power circuits.
5. Applications
- Industrial Automation: PLC control panels, conveyor systems, and machine tool control circuits.
- Power Distribution: Control cabinets, distribution boxes, and low-voltage switchgear.
- Electronic Equipment: HVAC systems, vending machines, and security alarm systems.
- Building Automation: Lighting control, access control systems, and elevator control panels.
- General Control Circuits: Solenoid valve control, motor starter auxiliary circuits, and signal switching applications.
6. Installation & Wiring Instructions
- Socket Mounting: Snap the provided socket base onto a standard 35mm DIN rail in the control panel.
- Relay Insertion: Align the relay pins with the socket and press firmly into place.
- Coil Wiring: Connect the control voltage to the coil pins (pins 13 and 14 for most MY2NJ models).
- Load Wiring: Connect the load circuit to the contact pins (pins 9/10/11 for common, NO, NC contacts on each pole).
- Verification: Energize the control circuit and confirm the LED indicator lights up, and the load switches as expected.
- High-quality shell:The shell is easy to disassemble and high temperature resistant.
- Coil:All-copper coil ensures the stability of product operation.
- Terminal Connector:Terminal Connector, easy wiring,strong conductivity, insulation and durability.
7. Frequently Asked Questions (FAQ)
Q1: What does MY2NJ / HH52PL mean?
MY2NJ is the standard model name for this 8-pin DPDT relay, while HH52PL is an equivalent model number used by many manufacturers. Both refer to the same type of 5A intermediate relay, fully interchangeable with standard MY-series sockets.
Q2: What is the difference between NO and NC contacts?
- NO (Normally Open): The contact is open when the relay coil is de-energized and closes when energized.
- NC (Normally Closed): The contact is closed when the relay coil is de-energized and opens when energized.
The MY2NJ has 2 sets of NO + NC contacts (DPDT configuration).
Q3: Can I use this relay with a PLC?
Yes, the MY2NJ is widely used with PLCs. The PLC output (typically 24V DC) can drive the relay coil, which in turn switches the load circuit. Always verify the coil voltage matches your PLC’s output specifications.
Q4: Is the socket included with the relay?
Yes, the MY2NJ / HH52PL relay is supplied with a corresponding DIN rail socket base (PYF08A type) for easy installation and wiring.
Q5: What coil voltage should I choose?
Select the coil voltage to match your control circuit’s power supply:
- 24V DC: Most common for PLC and industrial control systems.
- 230V AC: Suitable for direct control from mains voltage circuits.
- 12V DC: Used in low-voltage control or battery-powered systems.
Q6: What is the maximum current the relay can switch?
The MY2NJ is rated for 5A resistive load at 250V AC / 30V DC. For inductive loads (motors, solenoids), derate the current to 3A-4A to extend the relay’s electrical life.
Q7: Is this relay CE certified?
Yes, all MY2NJ / HH52PL relays are CE certified, complying with IEC 61810-1 standards for low-voltage control components, making them suitable for export to the EU and other global markets.
8. Technical Documents & Support
Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
The MY2NJ (HH52PL series) electromagnetic relay is a high-performance, general-purpose control relay designed for low-voltage control circuits in industrial and commercial applications. It is one of the most widely used intermediate relays, offering 5A switching capacity, 8-pin configuration, and compatibility with standard MY-series relay sockets.
Built with a transparent protective cover, the relay allows visual inspection of contact status and includes an LED indicator for quick operation verification. The corresponding socket base enables fast, tool-free installation on 35mm DIN rails, simplifying wiring and maintenance. With multiple coil voltage options (12V/24V DC, 110V/230V AC), the MY2NJ relay is suitable for PLC control systems, automation panels, power distribution cabinets, and various electronic control circuits.
2. Key Features
- Standard MY2NJ / HH52PL Configuration: 8-pin, 2-pole changeover contacts (DPDT) for versatile control applications.
- Wide Coil Voltage Options: Available in 12V DC, 24V DC, 110V AC, and 230V AC to match common control system voltages.
- 5A Contact Rating: Rated for 5A at 250V AC / 30V DC, suitable for switching small motors, solenoid valves, lights, and other low-power loads.
- Transparent Cover & LED Indicator: Clear plastic cover allows visual inspection of contacts; built-in LED confirms coil power status for quick troubleshooting.
- Corresponding Socket Base Included: Standard DIN rail mountable socket (PYF08A or equivalent) with screw terminals for easy wiring and installation.
- High Reliability Contacts: Silver alloy contacts provide long mechanical and electrical life, suitable for frequent switching applications.
- Compact & Space-Saving: Miniature design saves panel space, ideal for high-density control cabinets and PLC systems.
- Noise-Free Operation: Low coil power consumption and quiet switching, suitable for indoor and office environments.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | MY2NJ / HH52PL (MY-series intermediate relay) |
| Contact Configuration | DPDT (2NO + 2NC) |
| Rated Contact Current | 5A (resistive load) |
| Rated Contact Voltage | 250V AC / 30V DC |
| Coil Voltage Options | 12V DC, 24V DC, 110V AC, 230V AC (other voltages available on request) |
| Coil Power Consumption | Approx. 0.9W (DC) / 1.2VA (AC) |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | 1000V AC (1min between contacts and coil) |
| Mechanical Life | ≥10,000,000 operations |
| Electrical Life | ≥100,000 operations (at rated load) |
| Operating Temperature | -25°C ~ +60°C |
| Mounting Type | DIN rail socket mount (35mm standard) |
| Compliance | CE certified, meets IEC 61810-1 standards |
| Model name | Contact form | Rated current | Contact pins | Adaptation base |
|---|---|---|---|---|
| MY2NJ(HH52P) | Two open
Two Closed |
5A | Small 8 feet | PYF08A |
| MY3NJ(HH53P) | Three open
Three Closed |
5A | Small 11 feet | PYF11A |
| MY4NJ(HH54P) | Four open
Four Closed |
5A | Small 14 feet | PYF14A |
| LY2NJ(HH62P) | Two open
Two Closed |
10A | Big 8 feet | PTF08A |
| LY3NJ(HH63P) | Three open
Three Closed |
10A | Big 11 feet | PTF11A |
| LY4NJ(HH64P) | Four open
Four Closed |
10A | Big 14 feet | PTF14A |
4. Working Principle
The MY2NJ electromagnetic relay operates using an electromagnetic coil to control mechanical contacts:
- De-Energized State: The coil is not powered, and the normally closed (NC) contacts are connected while the normally open (NO) contacts are open.
- Energized State: When voltage is applied to the coil, the generated magnetic field pulls the armature, switching the contacts: NO contacts close and NC contacts open.
- Control Function: This allows the relay to use a small control current (from PLC or control circuit) to switch a larger load current (to motors, valves, lights), enabling low-power control of high-power circuits.
5. Applications
- Industrial Automation: PLC control panels, conveyor systems, and machine tool control circuits.
- Power Distribution: Control cabinets, distribution boxes, and low-voltage switchgear.
- Electronic Equipment: HVAC systems, vending machines, and security alarm systems.
- Building Automation: Lighting control, access control systems, and elevator control panels.
- General Control Circuits: Solenoid valve control, motor starter auxiliary circuits, and signal switching applications.
6. Installation & Wiring Instructions
- Socket Mounting: Snap the provided socket base onto a standard 35mm DIN rail in the control panel.
- Relay Insertion: Align the relay pins with the socket and press firmly into place.
- Coil Wiring: Connect the control voltage to the coil pins (pins 13 and 14 for most MY2NJ models).
- Load Wiring: Connect the load circuit to the contact pins (pins 9/10/11 for common, NO, NC contacts on each pole).
- Verification: Energize the control circuit and confirm the LED indicator lights up, and the load switches as expected.
- High-quality shell:The shell is easy to disassemble and high temperature resistant.
- Coil:All-copper coil ensures the stability of product operation.
- Terminal Connector:Terminal Connector, easy wiring,strong conductivity, insulation and durability.
7. Frequently Asked Questions (FAQ)
Q1: What does MY2NJ / HH52PL mean?
MY2NJ is the standard model name for this 8-pin DPDT relay, while HH52PL is an equivalent model number used by many manufacturers. Both refer to the same type of 5A intermediate relay, fully interchangeable with standard MY-series sockets.
Q2: What is the difference between NO and NC contacts?
- NO (Normally Open): The contact is open when the relay coil is de-energized and closes when energized.
- NC (Normally Closed): The contact is closed when the relay coil is de-energized and opens when energized.
The MY2NJ has 2 sets of NO + NC contacts (DPDT configuration).
Q3: Can I use this relay with a PLC?
Yes, the MY2NJ is widely used with PLCs. The PLC output (typically 24V DC) can drive the relay coil, which in turn switches the load circuit. Always verify the coil voltage matches your PLC’s output specifications.
Q4: Is the socket included with the relay?
Yes, the MY2NJ / HH52PL relay is supplied with a corresponding DIN rail socket base (PYF08A type) for easy installation and wiring.
Q5: What coil voltage should I choose?
Select the coil voltage to match your control circuit’s power supply:
- 24V DC: Most common for PLC and industrial control systems.
- 230V AC: Suitable for direct control from mains voltage circuits.
- 12V DC: Used in low-voltage control or battery-powered systems.
Q6: What is the maximum current the relay can switch?
The MY2NJ is rated for 5A resistive load at 250V AC / 30V DC. For inductive loads (motors, solenoids), derate the current to 3A-4A to extend the relay’s electrical life.
Q7: Is this relay CE certified?
Yes, all MY2NJ / HH52PL relays are CE certified, complying with IEC 61810-1 standards for low-voltage control components, making them suitable for export to the EU and other global markets.
8. Technical Documents & Support
Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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