Omron G2R-2 Miniature Relay

The Omron G2R-2 is a general-purpose small power relay featuring a Double-Pole Double-Throw (DPDT) contact configuration, suitable for a wide range of control scenarios. Below is a summary of its core information:

Core Specifications and Features
Contact Performance

Rating: AC250V/5A (resistive load) or DC30V/5A; supports inductive loads (예를 들어, AC250V/2A, cosφ=0.4).

Material: Silver (Ag) alloy contacts with cadmium-free, environmentally friendly design, ensuring high reliability and long service life.

Insulation: Withstands 5,000V between coil and contacts, and 10,000V surge voltage, complying with safety standards.

Coil Parameters

Voltage Range: Multiple options available, including DC5V, 12다섯, 24다섯, 48다섯, 100다섯, or AC12V, 24다섯, 100다섯, 200다섯.

Power Consumption: Approximately 0.53W for DC type, and 0.9VA (at 60Hz) for AC type.

Operating Characteristics: For DC coils, the pick-up voltage is ≤70% of the rated value, and the drop-out voltage is ≥15% of the rated value; for AC coils, the pick-up voltage is ≤80% of the rated value, and the drop-out voltage is ≥30% of the rated value.

Physical Design

Dimensions: Approximately 29mm×13mm×29mm, weighing 20g, with a compact size.

Mounting: Plug-in terminals (예를 들어, P2RFZ-08E socket), supporting PCB or DIN rail mounting, reducing wiring time by 60%.

Environment: Operating temperature ranges from -40℃ to 70℃, humidity from 5% 에게 85%; resistant to vibration (10-55헤르츠) and shock (1,000m/s²).

Model Selection and Functional Differences

The suffix letters of G2R-2 represent different functional configurations:

-S: Standard type, no additional functions.

-SN: Built-in operation indicator light (LED), supporting circuit status monitoring.

-SD: Built-in freewheeling diode, protecting the circuit from back EMF (electromotive force) impact, suitable for inductive loads.

-SND: Integrates both LED indicator light and diode, ideal for scenarios requiring status feedback and protection.

(S): Equipped with a mechanical operation lever, facilitating manual circuit testing.

예를 들어, G2R-2-SN DC24 refers to a DPDT relay with a DC24V coil and built-in LED indicator; G2R-2-SD AC120 is a model with an AC120V coil and built-in diode.

III. 응용 시나리오

Industrial Automation

– Controls actuators such as motors, solenoid valves, and contactors, supporting PLC system linkage.

– Typical cases: Signal switching for assembly line equipment, sensor-triggered logic control.

Smart Home and Consumer Electronics

– Drives smart switches, curtain motors, and security devices, compatible with development boards like Arduino and ESP32.

– Example: When remotely controlling home appliances via a voice assistant, the G2R-2 can act as a bridge between low-voltage signals and high-voltage loads.

New Energy and Power Systems

– Used for battery charge-discharge management and circuit switching of energy storage equipment, meeting high-reliability requirements.

– Example: Controls the on-off of charging circuits in electric vehicle charging piles.

Medical and Transportation Equipment

– Enables precise control of medical instruments (예를 들어, infusion pumps) and status switching of traffic signals.

Installation and Accessories
Sockets and Terminals

– It is recommended to use Push-In Plus sockets such as P2RFZ-08E, which support quick wiring and reduce installation time by 60%.

– Matching terminal covers (P2CZ-C) and jumper bars (PYDN series) can enhance safety and flexibility.

지침

– AC/DC coils are distinguished by tape color (예를 들어, blue for DC, white for AC) to avoid incorrect connection.

– During installation, ensure that the contact load does not exceed the rated value; for inductive loads, a diode or RC snubber circuit must be used in conjunction.