シュナイダー RXM4ABF7 補助リレー

セグメント	コード	意味
RXM	RXM	Basic identifier for Schneider Zelio series plug-in miniature auxiliary relays
4	4	Contact quantity: 4 change-over contacts (4 C/O / 4PDT), fits 14-pin socket base
AB	AB	Functional features: with lockable test button + mechanical indicator window; 1F7 = without LED, 2F7 = with LED
×	1-2	LED status: 1 = No LED, 2 = With LED indicator
F7	F7	コイル電圧: 120Vと, 50/60Hz

注記: RXM4ABF7 provided by user is an incomplete model. The full models are RXM4AB1F7 (without LED) and RXM4AB2F7 (with LED).

基本仕様

パラメータ	価値	備考
製品シリーズ	Harmony Zelio RXM	Industrial-grade plug-in miniature relay
接点構成	4 C/O (4 sets of change-over contacts, 4 いいえ + 4 ノースカロライナ州)	14-pin Faston flat terminals
Rated Load Current	6A @ 250V AC / 6A @ 28V DC	Compliant with IEC standard
UL Rated Current	8A @ 30V DC / 6A @ 277V AC	North American standard
Max Switching Voltage	250AC/DCV	IEC規格
Max Switching Capacity	1500バージニア州 (交流) / 168W (直流)	Under rated working condition
Min Switching Capacity	170mW (10mA @ 17V)	Suitable for low-level signal circuits
コイル電圧	120Vと, 50/60Hz	Corresponding to F7 code
コイル消費電力	約. 1020mW	Typical value
機械的寿命	≥10⁷ operations	No-load operation
電気的寿命	≥10⁵ operations	Under rated load
動作周波数	≤18000 times/hour (無負荷), ≤1200 times/hour (on-load)	–
寸法 (幅×高さ×奥行き)	21mm × 27mm × 35mm	コンパクトなサイズ, save cabinet space
取付タイプ	プラグインタイプ, compatible with RXMZE series sockets	例えば. RXMZE2S114M (14-ピン)
接点材質	銀ニッケル合金 (AgNi) with gold-plated flash layer	Improve conductivity and durability
動作温度	-40℃～+55℃	産業環境向けの広い温度範囲
認証	CE, CSA, UL, EN/IEC, RoHS	Meet international safety standards

ブランド	モデル	Matching Level	違いの説明
オムロン	MY4N-GS AC120V	★★★★★	4PDT, 6あ, with LED, 14-ピン, 直接交換
シーメンス	3RT2017-1BB41	★★★★☆	4PDT, 6あ, with LED, verify pin compatibility
ABB	CR-M4SS AC120V	★★★★☆	4PDT, 6あ, with test button, slight size difference
フエニックス・コンタクト	REL-MR-120AC/21HC/4	★★★★☆	4PDT, 6あ, with LED, same socket mounting way
ワイドミュラー	DRM570730LT	★★★★☆	4PDT, 6あ, with LED, 120V ACコイル

ACコイル (F7=120V AC, B7=24V AC, P7=230V AC)

DCコイル (BD=24V DC, JD=12V DC, MD=220V DC)

5.1 接触不良 (最も一般的な)

故障現象	原因	ソリューション
接触溶接	過負荷, electric arc discharge, contact wear	1. Check overload current
		2. Install RC snubber circuit to suppress arc
		3. Replace relay for severe damage
Poor Contact Conductivity	接触酸化, dust contamination, contact deformation	1. Clean contacts with dedicated cleaner
		2. Check contact pressure
		3. Replace burnt relay
Increased Contact Resistance	Thickened oxide layer on contact surface	1. Polish contact surface gently with fine sandpaper
		2. Match load properly

5.2 コイルの故障

故障現象	原因	ソリューション
Burnt Coil	過電圧, long-term energization, high ambient temperature	1. Stabilize power supply voltage
		2. Optimize control circuit to avoid continuous power-on
		3. 放熱性を向上させる
Coil No Response	Coil open circuit, wrong wiring, power failure	1. マルチメーターでコイル抵抗を測定 (普通: hundreds of ohms)
		2. Check wiring connection
		3. Confirm power supply status
Coil Buzzing Noise	Uneven armature surface, damaged core short-circuit ring	1. Clean and flatten armature and iron core
		2. Replace faulty relay

5.3 Mechanical Faults

故障現象	原因	ソリューション
Slow Action / Failure to Reset	ほこり & oil intrusion, spring deformation, vibration displacement	1. Clean internal components
		2. Adjust spring tension
		3. Fasten installation to reduce vibration
Invalid Test Button	Button mechanical jamming, internal spring damage	1. Clean button mechanism
		2. Replace relay if unreparable

適用分野

産業オートメーション: PLC signal amplification, motor control circuit, inverter start-stop control
ビルディングオートメーション: HVAC damper & バルブ制御, water pump logic control, 照明制御
パワーシステム: Switchgear secondary circuit, protection signal switching, instrument signal isolation
食べ物 & 飲料: Production line interlock control, safety door signal feedback, temperature control circuit
Automotive Industry: Welding workshop equipment control, robot signal relay, production line safety circuit

Typical Application Cases

場合 1: Blast Furnace Hydraulic Station Control in Steel Plant

応用: Drive hydraulic solenoid valves to control furnace top equipment

モデル: RXM4AB2BD (24ワシントンDCで, with LED)

効果: Quick fault diagnosis via lockable test button, reduce downtime by 40%

場合 2: HVAC System for Commercial Buildings

応用: Control fan coil electric valves and fresh air damper actuators

モデル: RXM4AB2F7 (120Vと, with LED)

効果: Compact structure saves cabinet space; LED indicator facilitates quick status inspection

場合 3: Packaging Machinery Production Line

応用: Signal isolation and amplification between PLC and actuators (シリンダー, モーター)

モデル: RXM4AB1P7 (230Vと, without LED)

効果: Offline circuit testing available without shutdown, improve production efficiency

選択 & 設置ガイドライン
モデルの選択: Select by contact quantity (2/3/4 C/O), コイル電圧 (AC/DC), LED indicator and test button demand
Socket Matching: RXM4AB series must adopt 14-pin sockets such as RXMZE2S114M to ensure correct pin alignment
ロードマッチング: Do not exceed rated voltage and current; install RC snubber circuit for inductive loads
設置環境: 高温を避ける, humid and dusty places, 良好な換気を確保する
配線仕様: Wire strictly according to contact numbers to prevent short circuit

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