コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
This is a 2-pole DPDT (Double Pole Double Throw) general purpose power relay from Omron’s G2R series. It features a 24 VDCコイル, 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
スタンダードモデル: G2R-2-SND DC24(S) (“G2R-2-SNDC24(S)” as input by the user is a common abbreviation)
| 一部 | 意味 | 説明 |
| G2R | 製品シリーズ | Omron classic general purpose power relay series |
| 2 | Number of Poles | 2 極 (DPDT) |
| S | 基本タイプ | Plug-in terminal type, standard dimensions |
| N | 特徴 | With LED operation indicator |
| D | 保護機能 | Built-in flyback diode (coil surge suppression) |
| DC24 | コイル仕様 | 24 VDCコイル |
| (S) | Special Marking | Transparent housing with mechanical operation indicator |
- Key Technical Specifications
| パラメータ | 仕様 | 注意事項 |
| 接点構成 | 2-pole DPDT (2いいえ + 2ノースカロライナ州) | Double Pole Double Throw, 8 ピン |
| 定格電流 | 5A @ 380VAC / 125VDC | 抵抗負荷, 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, 耐用年数の延長 |
| コイル電圧 | 24 VDC | Operating range: 16.8 ~ 26.4V |
| Coil Current | 25.6ミリアンペア | Coil resistance approx. 1.1 k惟 |
| コイル消費電力 | 約. 0.61W | Low-power design |
| Mounting Style | 8-pin plug-in | Compatible with dedicated G2R sockets, supports DIN rail mounting |
| Protection Structure | Sealed type (カバー付き) | Dustproof and moisture-proof, improved safety |
| Operate / Release Time | Max. 15MS / Max. 10MS | Standard response speed |
| 機械的寿命 | 10 100万操作 | Under rated conditions |
| 電気的寿命 | 100,000 オペレーション (5あ, 250VAC) | 抵抗負荷 |
| 動作温度 | -40掳C ~ +85掳C | Wide temperature range for industrial environments |
- 製品の特徴 & 利点
- 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.
- 簡単な取り付け: 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.
- アプリケーション
- 産業オートメーション: PLC output expansion, relay control panels, machine tool electrical systems.
- 機器制御: 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
| 代替機種 | Similarities | Differences | Recommendation |
| G2R-2-SND DC24 | 2-pole DPDT, 24VDC, 5あ, with LED + diode | No mechanical indicator, opaque housing | ★★★★★ (完全な互換性) |
| G2R-2-SNDI DC24(S) | 2-pole DPDT, 24VDC, 5あ, with LED + diode + mechanical indicator | With manual test button (I=Test) | ★★★★☆ (Enhanced functions) |
| G2R-2-S DC24 | 2-pole DPDT, 24VDC, 5あ | No LED indicator, no diode | ★★★☆☆ (Basic version) |
5.2 Upgraded Replacement Solutions
| Replacement Series | Sample Model | 利点 | アプリケーション |
| G2RL Series (Officially Recommended) | G2RL-2-SND DC24 | Lower power consumption (0.36W), 小さいサイズ | 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
| ブランド | モデル | 互換性 | Price Advantage |
| シュナイダー | RXM2LB2BD | 2-pole DPDT, 24VDC, 5あ | 約. -10% ～ -15% |
| シーメンス | 3RT2016-1BB01 | Similar specifications, industrial-grade quality | 約. +5% ～ +10% |
| ABB | CR-M230AC2L | 2-pole DPDT, 24VDC, 5あ | 約. 0% ～ +5% |
| Chinese Domestic Brands | Chint JZX-22F/2Z-DC24V | 完全な互換性, 高いコストパフォーマンス | 約. -30% ～ -50% |
- Complete Model List for G2R Series S(S) Sub-Series (2-Pole)
| Coil Type | モデル | 特徴 | 定格電流 |
| DC Coil | G2R-2-S DC12 | Basic type, no LED / diode | 5あ |
| G2R-2-SN DC24 | With LED indicator | 5あ | |
| G2R-2-SD DC24 | With diode | 5あ | |
| G2R-2-SND DC24 | With LED + diode | 5あ | |
| G2R-2-SND DC24(S) | With LED + diode + mechanical indicator + transparent housing | 5あ | |
| G2R-2-SNDI DC24(S) | With LED + diode + mechanical indicator + test button | 5あ | |
| AC Coil | G2R-2-S AC24 | Basic type, 24VAC | 5あ |
| G2R-2-SN AC110 | With LED indicator, 110VAC | 5あ | |
| G2R-2-SN AC220 | With LED indicator, 220VAC | 5あ |
- 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.
- 負荷の種類: 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, 5あ)
Classified by standard type / with indicator / with diode / with LED + diode / with mechanical indicator (S), including all DC24V models.
- モデルの命名規則 (G2R-2-S□□ DC□)
G2R: シリーズ
2: 2 極 (DPDT / 2いいえ + 2ノースカロライナ州)
S: 8-pin plug-in terminal
N: With LED operation indicator
D: With coil flyback diode (surge suppression)
私: 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 (私)
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 ピン)
5A contacts
24 VDCコイル
With LED + built-in diode + transparent housing mechanical indicator
- Direct Replacement List (Compatible, 8-pin, 5あ, 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)
