11pin 110v finder relay 70.3 with 11 pin relay socket MT750-3Z

Contact Ratings

Specification

Coil Versions

Description:

Small Universal Electromagnetic Relay: Compact Power, Socket Convenience, and Proven Reliability

In the broad ecosystem of industrial automation, control panels, and electrical equipment, few components are as ubiquitous or as essential as the electromagnetic relay. It serves as the critical link between low-power control signals—from PLCs, timers, or sensors—and the higher-power loads they must actuate, such as contactors, solenoids, motors, and lighting circuits. The Small Universal Electromagnetic Relay, offered in both 2Z (DPDT) and 4Z (4PDT) contact configurations, embodies the ideal balance of robust switching capacity, compact footprint, and installation convenience. With its socket-mount design, wide selection of AC and DC coils, and excellent dielectric strength, this relay series provides engineers, panel builders, and maintenance professionals with a dependable, versatile, and easy-to-maintain solution for countless applications across industrial machinery, building automation, and process control.

Versatile Contact Configurations for Varied Load Requirements
The relay is available in two distinct contact arrangements, allowing users to match the device precisely to their application’s needs.

· 2Z Configuration (DPDT – Double Pole Double Throw): This model features two independent changeover contacts, each rated for a substantial 10A at 220V AC or 28V DC. The 10A capacity makes it suitable for directly switching medium-power loads such as contactor coils, solenoid valves, small motors, heating elements, and indicator lighting. Whether used in a motor starter circuit or a lighting control panel, the 2Z version delivers dependable performance even under moderate inrush currents.
· 4Z Configuration (4PDT – Four Pole Double Throw): This variant provides four independent changeover contacts, offering exceptional circuit density in a single relay. The contact capacity is rated at 10A for normally open (NO) contacts and 5A for normally closed (NC) contacts at 28V DC or 220V AC. The 4Z version is ideal for applications requiring simultaneous switching of multiple circuits from one control signal, such as complex logic interlocking, multi-circuit sequencing, signal routing in test equipment, or interfacing between different control systems.

Both configurations maintain a low contact resistance of ≤50mΩ (measured at 1A, 6V DC). This low resistance minimizes power loss and heat generation at the contact interface, contributing to long-term reliability and energy efficiency, especially in continuous-duty or high-cycle applications.

Superior Insulation and Dielectric Strength for Safe Operation
Safety and electrical isolation are paramount in any control system, and this relay is constructed to high standards. It offers an insulation resistance of 500MΩ at 500V DC, ensuring effective isolation between the coil and contacts as well as between independent contact sets. This high resistance prevents leakage currents and maintains signal integrity in sensitive electronic environments.

The dielectric strength ratings further demonstrate its industrial-grade robustness:

· Between Coil and Contacts (BCC): Withstands 1000Vr.m.s for 1 minute, guaranteeing safe separation between the low-voltage control circuit and the switched load circuit.
· Between Open Contacts (BOC): Withstands 1500Vr.m.s for 1 minute, ensuring that contacts can safely interrupt the circuit without arcing or breakdown when in the open state.

These rigorous dielectric ratings make the relay suitable for use in applications that demand reliable isolation, including industrial control panels, HVAC systems, safety circuits, and equipment subject to electrical noise.

Optimized Operating Times for Responsive Control
In time-critical applications, switching speed directly affects system performance. This relay delivers dependable timing with an operate time of 30ms and a release time of 20ms. The fast response ensures precise sequencing in automation logic, minimizes arcing during contact transition, and contributes to overall system efficiency. The asymmetric operate/release times are carefully engineered to provide positive, snap-action switching while maintaining consistent behavior across millions of operations.

Socket-Mount Design for Easy Installation and Maintenance
The relay is designed exclusively for socket-mount termination, using standard relay sockets. This approach offers significant practical advantages in real-world applications:

· Tool-Free Replacement: When a relay reaches the end of its life or fails, it can be unplugged and replaced in seconds without disturbing any field wiring.
· Simplified Panel Assembly: Sockets can be pre-wired during panel fabrication, with relays installed later, streamlining production and testing.
· Reduced Downtime: Maintenance personnel can quickly swap a suspect relay with a known-good unit, minimizing system downtime and improving productivity.
· Flexible Mounting: Sockets are available for DIN rail or panel mounting, providing versatility in control cabinet layout.

Extensive Coil Voltage Options for Global Compatibility
A standout feature of this relay series is its comprehensive selection of coil voltages, covering both DC and AC requirements for worldwide deployment. This versatility simplifies inventory management and reduces the number of part numbers needed for global projects.

DC Coil Versions are available in 6V, 12V, 24V, 48V, 100V, and 110V DC. Each is specified with precise pull-in and release voltages (e.g., 4.8V/0.6V for the 6V coil), ensuring reliable operation within defined tolerances. Coil resistance values are held to ±10% tolerance, ranging from 24Ω (6V) to 9,650Ω (110V). The nominal coil power is 1.5W, providing adequate magnetic force while minimizing the burden on control circuits.

AC Coil Versions cover 6V, 12V, 24V, 48V, 110/120V, and 220/240V AC. The 110/120V coil has a resistance of 1,700Ω, while the 220/240V version is offered with two resistance values (7,400Ω for 220V and 8,760Ω for 240V), accommodating variations in global supply voltages. AC coils consume a low 2.5VA nominal power, ensuring compatibility with low-power control circuits and energy-efficient system designs. Pull-in and release voltages (e.g., 176V/72V for the 240V coil) guarantee consistent switching across the entire voltage range.

Durable Construction for Long Service Life
While specific mechanical and electrical life figures are not detailed in the provided parameters, the relay is constructed with high-quality materials to withstand millions of operations in typical industrial environments. Contact materials are selected to resist welding and erosion, and the coil insulation system is designed for continuous duty. The socket-mount design also contributes to longevity by reducing thermal and mechanical stress on the relay terminals during replacement.

Wide Range of Applications
The versatility of this relay makes it suitable for countless applications:

· Industrial Control Panels: Interfacing between PLCs and field devices such as motors, valves, and contactors.
· HVAC Systems: Controlling fans, pumps, compressors, and damper actuators.
· Automation and Machinery: Switching solenoids, actuators, and indicator lights.
· Building Management: Controlling lighting, access control, and security systems.
· Test and Measurement Equipment: Routing signals and switching loads in automated test systems.

Conclusion: The Reliable, Socket-Mounted Workhorse
The Small Universal Electromagnetic Relay, in its 2Z and 4Z configurations, delivers the essential combination of high contact ratings, superior electrical isolation, fast operation, and comprehensive coil voltage options—all within a convenient socket-mount package. Its robust construction, proven dielectric strength, and low contact resistance ensure long-term reliability in demanding industrial environments. For engineers and system integrators seeking a dependable, cost-effective, and truly universal switching solution, this relay series stands as the definitive choice. Whether controlling a 10A motor load with a 2Z relay or switching multiple 5A circuits with a 4Z relay, it provides the performance, flexibility, and durability that modern automation and control applications demand.

Applications:

10A Contact operating capacity
Mechanical life ≥100000
With 2Z,3Z contact forms
Standard tube terminal
With matched socket
Including LED,test button

Competitive Advantage:

Advantages of Wenzhou DAQUAN Electric Co., Ltd

1. Innovation Leadership

With 258 patents and 27 years of industry experience, we lead in R&D of industrial control devices like relays and timers, ensuring cutting-edge product performance.

2. Global Certifications

Our products hold CE, ROHS, IEC, TUV certifications plus ISO9001, meeting strict international standards for seamless global market access.

3. Scale Supply Stability

Backed by a 7,800㎡ factory, 499-strong team, and 70M RMB annual output, we guarantee efficient production and timely delivery for bulk orders.