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Model | Contact Groups | Available Contact Forms | Contact Configuration | Rated Contact Load | Listed Maximum Switching Load | Coil Voltage Range | Main Functional Difference |
HW-10F-2Z | 2 | 2Z, 2H, 2D | DPDT / two-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | Standard 10F two-contact-group relay |
HW-10F-3Z | 3 | 3Z, 3H, 3D | 3PDT / three-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | Standard 10F three-contact-group relay |
HW-10FT-2Z | 2 | 2Z, 2H, 2D | DPDT / two-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | T-type with optional self-locking or test function |
HW-10FT-3Z | 3 | 3Z, 3H, 3D | 3PDT / three-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | T-type with optional self-locking or test function |
HW-MK2P | 2 | 2Z, 2H, 2D | DPDT / two-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | MK series, two contact groups |
HW-MK2PT | 2 | 2Z, 2H, 2D | DPDT / two-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | MK T-type with self-locking or test function |
HW-MK3P | 3 | 3Z, 3H, 3D | 3PDT / three-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | MK series, three contact groups |
HW-MK3PT | 3 | 3Z, 3H, 3D | 3PDT / three-pole | 10A | 240VAC 5A; 28VDC 5A | DC 6–220V; AC 6–380V | MK T-type with self-locking or test function |
Code | Contact Type | Description |
Z | Changeover contact | Each pole includes COM, NO, and NC contacts |
H | Normally open contact | Contact closes when the coil is energized |
D | Normally closed contact | Contact opens when the coil is energized |
2Z | Two changeover contacts | Equivalent to a DPDT contact arrangement |
3Z | Three changeover contacts | Equivalent to a 3PDT contact arrangement |
L | LED indication | Provides visible coil operating status |
T | Self-locking/test function | Supports manual operation or contact testing, depending on configuration |
D/CR | Coil suppression protection | Optional diode or resistor-capacitor suppression for coil transients |
A general purpose relay is an electrically operated switch designed to control one or more load circuits through a separate control circuit. In an electromagnetic relay, the control circuit energizes a coil. The energized coil creates a magnetic field that attracts a movable armature and changes the state of the relay contacts.
The control side and contact side are electrically isolated. This allows a PLC, sensor, thermostat, timer, push button, or low-power controller to operate a load circuit with a different voltage or higher current.
A typical relay contains:
When the coil is not energized, the COM terminal is connected to the NC terminal. When the coil is energized, the armature moves and transfers COM from NC to NO. This operating principle enables the relay to perform switching, isolation, interlocking, signal conversion, and basic control-logic functions.
General purpose relays are not normally standalone overload or short-circuit protection devices. Fuses, circuit breakers, overload relays, sensors, or a control system must detect abnormal conditions and then command the relay to disconnect the load.
Advantage
Rated current 25A~60A, capable of directly driving motors, transformers, furnaces and other high-power equipment.
Flange mount, DIN rail, socket, PCB, and bolt fixing to suit various application scenarios.
Complete isolation between control and load circuits for personnel and equipment safety.
CQC, CE, UKCA certified, meeting global market access requirements.
Choose a general purpose relay according to the coil voltage, contact configuration, load type, operating current, and installation method. Confirm whether the control supply is AC or DC, especially when selecting a general purpose relay 24V. Check the rated current and inrush current of motors, lamps, solenoids, or other inductive loads, and use a contactor for high-power equipment. Before installation, verify the socket pin arrangement and general purpose relay wiring diagram to ensure the coil, COM, NO, and NC terminals are connected correctly.
Structural Components
Electromagnetic System: Comprises a coil wound with insulated copper wire, a soft magnetic iron core (silicon steel sheet) for low eddy current loss, and an armature with adjustable air gap.
Contact System: Features silver alloy contacts with excellent conductivity and wear resistance, designed with arc-extinguishing devices for high-current applications.
Hangwang Electrical manufacturer provide power relays for OEM equipment, electrical panels, automation systems and industrial applications. Our team focuses on stable quality, practical model selection, responsive communication and long-term supply support.
Hangwang Electric operates advanced automated relay production lines, covering the entire process from component feeding, precision assembly to finished product inspection. We have introduced modern equipment including tray-type automatic loading systems, servo robotic arms, precision pressing equipment, and HMI intelligent control systems to ensure every product delivers excellent quality and stable performance. Our clean and standardized factory environment, scientific production line layout, and strict quality control system have earned the trust of customers worldwide.
High-grade insulation materials for housing; Silver alloy contacts (AgCdO anti-welding, AgNi wear-resistant); High-purity copper wire coil with insulation coating; Strict incoming quality control from the source.
Fully automated production lines with precision parameter control; Automatic coil winding with break detection; 100% electrical performance testing of components; Precision machining for consistent quality.
Visual inspection & coil resistance measurement; Insulation resistance & pick-up/drop-out voltage test; Contact resistance & contact capacity test; Mechanical life & temperature/humidity/vibration/shock test.
Custom mold tight fit with cushioning protection; Pin protective covers to prevent transport damage; Moisture-resistant packaging with clear labeling; Ensuring products arrive in perfect condition.
Hangwang Electrical Manufacturer offers a variety of relay solutions, send us your required coil voltage, contact rating, mounting type, load application and estimated quantity. Our team will recommend suitable power relay models and provide datasheets, samples and bulk pricing for your evaluation.
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