Relé auxiliar Schneider RXM4ABF7

Segmento	Código	Significado
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
incógnita	1-2	LED status: 1 = No LED, 2 = With LED indicator
F7	F7	voltaje de la bobina: 120V y, 50/60Hz

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

Especificaciones básicas

Parámetro	Valor	Observaciones
Serie de productos	Harmony Zelio RXM	Industrial-grade plug-in miniature relay
Configuración de contacto	4 C/O (4 sets of change-over contacts, 4 NO + 4 CAROLINA DEL NORTE)	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	estándar norteamericano
Max Switching Voltage	250VCA/CC	estándar IEC
Max Switching Capacity	1500Virginia (C.A.) / 168W. (corriente continua)	Under rated working condition
Min Switching Capacity	170mW (10mA @ 17V)	Suitable for low-level signal circuits
Voltaje de la bobina	120V y, 50/60Hz	Corresponding to F7 code
Consumo de energía de la bobina	Aprox.. 1020mW	Typical value
Vida útil mecánica	≥10⁷ operations	No-load operation
Vida útil eléctrica	≥10⁵ operations	Carga inferior a la nominal
Frecuencia de funcionamiento	≤18000 times/hour (no-load), ≤1200 times/hour (on-load)	–
Dimensión (Ancho×Alto×Profundidad)	21mm × 27mm × 35mm	Tamaño compacto, save cabinet space
Tipo de montaje	Tipo de complemento, compatible with RXMZE series sockets	p.ej. RXMZE2S114M (14-alfiler)
Material de contacto	Aleación de plata y níquel (AgNi) with gold-plated flash layer	Improve conductivity and durability
Temperatura de funcionamiento	-40°C ~ +55°C	Wide temperature range for industrial environments
Certificaciones	CE, CSA, UL, EN/IEC, RoHS	Meet international safety standards

Marca	Modelo	Matching Level	Descripción de la diferencia
Omrón	MY4N-GS AC120V	★★★★★	4PDT, 6A, with LED, 14-alfiler, reemplazo directo
siemens	3RT2017-1BB41	★★★★☆	4PDT, 6A, with LED, verify pin compatibility
TEJIDO	CR-M4SS AC120V	★★★★☆	4PDT, 6A, with test button, slight size difference
Contacto Fénix	REL-MR-120AC/21HC/4	★★★★☆	4PDT, 6A, with LED, same socket mounting way
Weidmüller	DRM570730LT	★★★★☆	4PDT, 6A, with LED, 120Bobina V CA

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

Bobina de CC (BD=24V DC, JD=12V DC, MD=220V DC)

5.1 Contact Faults (Más común)

Fenómeno de falla	Causa	Soluciones
Contact Welding	Sobrecarga, 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	Contact oxidation, 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 Coil Faults

Fenómeno de falla	Causa	Soluciones
Burnt Coil	Sobretensión, long-term energization, temperatura ambiente alta	1. Stabilize power supply voltage
		2. Optimize control circuit to avoid continuous power-on
		3. Mejorar la disipación del calor.
Coil No Response	Circuito abierto de bobina, wrong wiring, power failure	1. Medir la resistencia de la bobina con un multímetro (normal: 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

Fenómeno de falla	Causa	Soluciones
Slow Action / Failure to Reset	Dust & 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

Campos aplicables

Automatización Industrial: Amplificación de señal PLC, motor control circuit, inverter start-stop control
Automatización de edificios: HVAC damper & valve control, water pump logic control, control de iluminación
Sistema de energía: Switchgear secondary circuit, protection signal switching, instrument signal isolation
Alimento & Bebida: Production line interlock control, safety door signal feedback, temperature control circuit
Automotive Industry: Welding workshop equipment control, robot signal relay, production line safety circuit

Casos de aplicación típicos

Caso 1: Blast Furnace Hydraulic Station Control in Steel Plant

Solicitud: Drive hydraulic solenoid valves to control furnace top equipment

Modelo: RXM4AB2BD (24En DC, with LED)

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

Caso 2: HVAC System for Commercial Buildings

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

Modelo: RXM4AB2F7 (120V y, with LED)

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

Caso 3: Packaging Machinery Production Line

Solicitud: Signal isolation and amplification between PLC and actuators (cylinders, motores)

Modelo: RXM4AB1P7 (230V y, without LED)

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

Selección & Installation Guidelines
Selección de modelo: Select by contact quantity (2/3/4 C/O), voltaje de la bobina (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
Coincidencia de carga: Do not exceed rated voltage and current; install RC snubber circuit for inductive loads
Entorno de instalación: Avoid high temperature, humid and dusty places, asegurar una buena ventilación
Especificación de cableado: Wire strictly according to contact numbers to prevent short circuit

Noticias Noticias comerciales