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This is a 2-pole DPDT (Double Pole Double Throw) general purpose power relay from Omron’s G2R series. It features a 24 VDC coil, 5A contact rating, LED indicator + built-in flyback diode with mechanical operation indicator, and uses an 8-pin plug-in mounting design. It is widely used for industrial automation interfaces, PLC outputs, and equipment control. This model is currently discontinued (EOL), and replacement with equivalent or upgraded models from the same series is recommended.
- Complete Model Definition
Standard Model: G2R-2-SND DC24(S) (“G2R-2-SNDC24(S)” as input by the user is a common abbreviation)
| Part | Meaning | Description |
| G2R | Product Series | Omron classic general purpose power relay series |
| 2 | Number of Poles | 2 poles (DPDT) |
| S | Basic Type | Plug-in terminal type, standard dimensions |
| N | Feature | With LED operation indicator |
| D | Protection Function | Built-in flyback diode (coil surge suppression) |
| DC24 | Coil Specification | 24 VDC coil |
| (S) | Special Marking | Transparent housing with mechanical operation indicator |
- Key Technical Specifications
| Parameter | Specification | Notes |
| Contact Configuration | 2-pole DPDT (2NO + 2NC) | Double Pole Double Throw, 8 pins |
| Rated Current | 5A @ 380VAC / 125VDC | Resistive load, AC-15 / DC-13 |
| Contact Dielectric Strength | 500VAC / VDC | Between coil and contacts |
| Impulse Withstand Voltage | 10,000V | High safety margin |
| Contact Material | AgSnIn (Silver-Tin-Indium) | Anti-welding, arc-resistant, extended service life |
| Coil Voltage | 24 VDC | Operating range: 16.8 ~ 26.4V |
| Coil Current | 25.6mA | Coil resistance approx. 1.1 k惟 |
| Coil Power Consumption | Approx. 0.61W | Low-power design |
| Mounting Style | 8-pin plug-in | Compatible with dedicated G2R sockets, supports DIN rail mounting |
| Protection Structure | Sealed type (with cover) | Dustproof and moisture-proof, improved safety |
| Operate / Release Time | Max. 15ms / Max. 10ms | Standard response speed |
| Mechanical Life | 10 million operations | Under rated conditions |
| Electrical Life | 100,000 operations (5A, 250VAC) | Resistive load |
| Operating Temperature | -40掳C ~ +85掳C | Wide temperature range for industrial environments |
- Product Features & Advantages
- Integrated Design: Combines LED indicator, built-in flyback diode, and mechanical operation indicator, simplifying wiring and status monitoring.
- Safe & Reliable: 500V dielectric strength between coil and contacts, 10,000V impulse withstand voltage, compliant with international safety standards.
- Easy Installation: 8-pin plug-in design enables quick replacement, compatible with standard sockets and DIN rail systems.
- Transparent Housing: Models with the (S) suffix use a transparent case for direct visual inspection of contact status.
- Universal Compatibility: Suitable for switching AC and DC loads; AgSnIn contact material adapts to various operating conditions.
- Applications
- Industrial Automation: PLC output expansion, relay control panels, machine tool electrical systems.
- Equipment Control: Motor control, solenoid valve actuation, heater and lighting system switching.
- Building Automation: HVAC system control, access control and security device interfaces.
- Instrumentation: Signal switching in test equipment, control circuits in medical devices.
- Energy Management: Auxiliary control for PV inverters, switching circuits in UPS systems.
- Replacement Model Solutions (Key Information)
This model is discontinued (EOL). Below are officially recommended and compatible alternatives:
5.1 Direct Replacements within Omron Same Series
| Replacement Model | Similarities | Differences | Recommendation |
| G2R-2-SND DC24 | 2-pole DPDT, 24VDC, 5A, with LED + diode | No mechanical indicator, opaque housing | ★★★★★ (Fully compatible) |
| G2R-2-SNDI DC24(S) | 2-pole DPDT, 24VDC, 5A, with LED + diode + mechanical indicator | With manual test button (I=Test) | ★★★★☆ (Enhanced functions) |
| G2R-2-S DC24 | 2-pole DPDT, 24VDC, 5A | No LED indicator, no diode | ★★★☆☆ (Basic version) |
5.2 Upgraded Replacement Solutions
| Replacement Series | Sample Model | Advantages | Applications |
| G2RL Series (Officially Recommended) | G2RL-2-SND DC24 | Lower power consumption (0.36W), smaller size | Applications with high energy-saving requirements and limited space |
| G2R-S Series | G2R-2-SND DC24-R | Enhanced RoHS compliance, identical performance | New design projects meeting latest standards |
| G2R-K Series | G2R-2-KSND DC24 | With key lock to prevent mis-insertion, improved safety level | High-vibration or frequent plugging/unplugging environments |
5.3 Compatible Replacements from Other Brands
| Brand | Model | Compatibility | Price Advantage |
| Schneider | RXM2LB2BD | 2-pole DPDT, 24VDC, 5A | Approx. -10% ~ -15% |
| Siemens | 3RT2016-1BB01 | Similar specifications, industrial-grade quality | Approx. +5% ~ +10% |
| ABB | CR-M230AC2L | 2-pole DPDT, 24VDC, 5A | Approx. 0% ~ +5% |
| Chinese Domestic Brands | Chint JZX-22F/2Z-DC24V | Fully compatible, high cost-performance | Approx. -30% ~ -50% |
- Complete Model List for G2R Series S(S) Sub-Series (2-Pole)
| Coil Type | Model | Features | Rated Current |
| DC Coil | G2R-2-S DC12 | Basic type, no LED / diode | 5A |
| G2R-2-SN DC24 | With LED indicator | 5A | |
| G2R-2-SD DC24 | With diode | 5A | |
| G2R-2-SND DC24 | With LED + diode | 5A | |
| G2R-2-SND DC24(S) | With LED + diode + mechanical indicator + transparent housing | 5A | |
| G2R-2-SNDI DC24(S) | With LED + diode + mechanical indicator + test button | 5A | |
| AC Coil | G2R-2-S AC24 | Basic type, 24VAC | 5A |
| G2R-2-SN AC110 | With LED indicator, 110VAC | 5A | |
| G2R-2-SN AC220 | With LED indicator, 220VAC | 5A |
- Selection & Purchasing Guidelines
- Status Confirmation: Original model G2R-2-SND DC24(S) is discontinued; prioritize replacement models for procurement.
- Mounting Compatibility: Maintain 8-pin plug-in mounting to ensure compatibility with existing sockets.
- Function Matching: Select models with/without LED, diode, and mechanical indicator based on requirements.
- Load Type: For inductive loads, models with flyback diode (suffix D) are mandatory to protect drive circuits.
- Inventory Management: For legacy equipment using this model, stock replacement parts or consider overall control system upgrades.
Complete Model List for Omron G2R-2-S Series
(8-pin plug-in, 2-pole DPDT, 5A)
Classified by standard type / with indicator / with diode / with LED + diode / with mechanical indicator (S), including all DC24V models.
- Model Naming Rule (G2R-2-S□□ DC□)
G2R: Series
2: 2 poles (DPDT / 2NO + 2NC)
S: 8-pin plug-in terminal
N: With LED operation indicator
D: With coil flyback diode (surge suppression)
I: With manual test button
(S): Transparent housing + mechanical operation indicator
DC24: Coil voltage 24 VDC
1) Standard Basic Type (No Indicator, No Diode)
G2R-2-S DC12
G2R-2-S DC24
G2R-2-S AC24
G2R-2-S AC110
G2R-2-S AC220
2) With LED Indicator (N)
G2R-2-SN DC12
G2R-2-SN DC24
G2R-2-SN AC24
G2R-2-SN AC110
G2R-2-SN AC220
3) With Flyback Diode (D)
G2R-2-SD DC12
G2R-2-SD DC24
G2R-2-SD DC48
G2R-2-SD DC110
4) With LED + Diode (ND) — Most Common in Industry
G2R-2-SND DC12
G2R-2-SND DC24
G2R-2-SND DC48
G2R-2-SND DC110
5) With LED + Diode + Mechanical Indicator (Transparent Housing S)
G2R-2-SND DC12 (S)
G2R-2-SND DC24 (S) (Your model)
G2R-2-SND DC48 (S)
6) With LED + Diode + Mechanical Indicator + Test Button (I)
G2R-2-SNDI DC12 (S)
G2R-2-SNDI DC24 (S)
G2R-2-SNDI DC48 (S)
- Exact Match for Your Model
Your Model: G2R-2-SND DC24 (S)
2-pole DPDT (8 pins)
5A contacts
24 VDC coil
With LED + built-in diode + transparent housing mechanical indicator
- Direct Replacement List (Compatible, 8-pin, 5A, 24VDC)
- G2R-2-SND DC24 (No transparent housing / mechanical indicator, most common replacement)
- G2R-2-SNDI DC24 (S) (With additional test button)
- G2RL-2-SND DC24 (Upgraded low-power version)
- RXM2LB2BD (Schneider equivalent)
