2Z/3Z 10A Socket Relay for Industrial Control

Quick Detail:

1. Control relay, interposing relay
2. Control high current loads through small current signals, or transmit and isolate signals between different circuit

Description:

Small Universal Electromagnetic Relay – 2Z and 3Z Socket‑Mount for Versatile Control Applications

In industrial automation, building management, and electrical control panels, the need for reliable, multi‑pole switching is ubiquitous. The Small Universal Electromagnetic Relay, offered in 2Z (DPDT) and 3Z (3PDT) contact configurations, is engineered to provide robust, dependable performance in a compact socket‑mount package. With contact ratings of 10A at 220V AC / 30V DC (and a special 10A/5A rating for the 3Z version), excellent dielectric strength, and a wide selection of AC and DC coils, this relay series is the ideal choice for applications ranging from PLC interfacing and motor control to lighting systems and HVAC equipment. Its socket‑mount design simplifies installation and maintenance, while the low coil power consumption (1.5W DC / 2.5VA AC) ensures energy efficiency and minimal heat generation.

Versatile Contact Configurations for Flexible Circuit Design

The relay is available in two contact arrangements, each tailored to specific application requirements.

· 2Z Configuration (DPDT – Double Pole Double Throw):

This version features two independent changeover contacts, each rated at 10A at 220V AC or 30V DC. The 10A capacity makes it suitable for directly switching medium‑power loads such as contactor coils, solenoid valves, small motors, heaters, and lighting circuits. The DPDT configuration allows a single relay to control two separate circuits simultaneously, which is ideal for applications like dual‑pump alternation, reversible motor control, or interlocking two safety loops.

· 3Z Configuration (3PDT – Triple Pole Double Throw):

This variant provides three independent changeover contacts with a differentiated rating: 10A for normally open (NO) contacts and 5A for normally closed (NC) contacts at 220V AC or 30V DC. This distinction is particularly useful in applications where the NO contacts carry the main load (e.g., starting a motor) while the NC contacts handle a lighter, standby circuit (e.g., a status indicator). The 3Z version is perfect for complex logic interlocking, three‑phase monitoring, or multi‑circuit sequencing.

All contacts exhibit a low contact resistance of ≤50mΩ (measured at 1A, 6V DC), minimising power loss and heat generation. The silver‑alloy contact material ensures excellent resistance to arc erosion, providing long electrical life even when switching inductive loads.

Superior Insulation and Dielectric Strength for Safe Operation

Safety and isolation are critical in any control system, and this relay is built to high industry 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.

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

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

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

Fast and Reliable Operating Times

In time‑critical applications, switching speed is essential. This relay delivers an operate time of 30ms and a release time of 20ms. The faster release time (20ms) enhances safety by quickly disconnecting loads when the control signal is removed. The asymmetric timing is carefully engineered to provide positive, snap‑action switching while maintaining consistent behaviour across millions of operations. This performance is particularly valuable in sequencing applications, emergency stop circuits, and any process where rapid disconnection is required to prevent damage or injury.

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:

· Tool‑Free Replacement: When a relay reaches its end of 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, minimising system downtime.
· Flexible Mounting: Sockets are available for DIN rail or panel mounting, providing versatility in control cabinet layout.

Low Coil Power Consumption for Energy Efficiency

The relay is designed with energy efficiency in mind. DC coil versions consume just 1.5W nominal power, while AC coil versions consume 2.5VA. This low power burden minimises heat generation within enclosures and reduces the load on control circuits, making the relay suitable for battery‑backed or energy‑sensitive applications. The reduced heat also contributes to longer component life in densely populated panels.

Extensive Coil Voltage Options for Global Compatibility

The relay series offers a comprehensive selection of coil voltages, covering both DC and AC requirements for worldwide deployment.

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 1.5W power consumption provides adequate magnetic force while remaining suitable for PLC outputs and microcontroller‑driven 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. Pull‑in and release voltages (e.g., 176V/72V for the 240V coil) guarantee consistent switching across the entire AC voltage range. The 2.5VA nominal power ensures compatibility with low‑power control circuits and energy‑efficient system designs.

Durable Construction for Long Service Life

Although specific mechanical and electrical life figures are not detailed in the provided parameters, the relay is constructed with high‑quality materials and proven design practices to withstand millions of operations in typical industrial environments. The silver‑alloy contacts resist welding and erosion, while 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 contactors, valves, and indicators.
· HVAC Systems: Controlling fans, pumps, compressors, and damper actuators.
· Automation and Machinery: Switching solenoids, actuators, and indicator lights.
· Building Management: Controlling lighting circuits, access control, and security systems.
· Test and Measurement Equipment: Routing signals and switching loads in automated test systems.
· Power Supplies and Battery Systems: Providing isolation and switching in charger circuits and backup power systems.

Conclusion: The Reliable, Socket‑Mounted Workhorse

The Small Universal Electromagnetic Relay, available in 2Z and 3Z configurations, delivers the essential combination of high contact ratings (10A), superior electrical isolation (1000V/1500V dielectric), fast operate/release times (30ms/20ms), and low coil power consumption (1.5W/2.5VA)—all within a convenient socket‑mount package. Its comprehensive coil voltage options ensure global compatibility, while its robust construction guarantees long‑term performance in demanding 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 single 10A load with a 2Z relay or managing multiple circuits (10A NO / 5A NC) with a 3Z relay, it provides the performance, flexibility, and durability that modern automation and control applications demand.

Applications:

1.Industrial Control Panels
2.HVAC Systems
3.Home Appliances
4.Building Automation
5.Test & Measurement Equipment
6.Power Supplies & Battery Systems
7.Lighting Control
8.Automation & Machinery
9.Telecommunications
10.Medical Devices

Specifications:

Specification

Coil Versions

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.