| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Wickmann / Littelfuse |
3-PH 11-PIN PLUG-IN VM / 95 - |
0 |
|
 |
Wickmann / Littelfuse |
CURRENT SENSOR W/RELAY 5-200A |
17 |
|
 |
Wickmann / Littelfuse |
CUR SENSE MONITOR 120VAC 2-20A |
3 |
|
 |
Wickmann / Littelfuse |
3-PHASE VOLTAGE MONITOR/ 475-6 |
8 |
|
 |
Wickmann / Littelfuse |
LOAD SENSOR/ 115V/ 25-100A/ UC |
1 |
|
 |
Wickmann / Littelfuse |
1-PHASE VOLTAGE MONITOR/ 380-4 |
11 |
|
 |
Wickmann / Littelfuse |
RELAY 240VAC VOLT PHASE MONITOR |
3 |
|
 |
Wickmann / Littelfuse |
3-PHASE LINE-LOAD VOLT MON/ 47 |
1 |
|
 |
Wickmann / Littelfuse |
LOAD SENSOR 115V =AC 2-100A |
0 |
|
 |
Wickmann / Littelfuse |
3-PHASE VOLTAGE MONITOR W/ DIS |
0 |
|
 |
Wickmann / Littelfuse |
RELAY CUR SENSE |
0 |
|
 |
Wickmann / Littelfuse |
RELAY TIME DELAY FLSH FAIL ALARM |
3 |
|
 |
Wickmann / Littelfuse |
RELAY CUR SENSE 120VAC 2-20A |
22 |
|
 |
Wickmann / Littelfuse |
3 PHASE VOLTAGE MONITOR |
1 |
|
 |
Wickmann / Littelfuse |
3 PH VOLT MONITOR 48 PCS |
0 |
|
 |
Wickmann / Littelfuse |
RELAY CUR SENSE 120VAC 2-20A |
0 |
|
 |
Wickmann / Littelfuse |
3-PHASE VOLTAGE MONITOR/ 380-4 |
1 |
|
 |
Wickmann / Littelfuse |
3-PHASE VOLT MON/ 190-480V/ AD |
5 |
|
 |
Wickmann / Littelfuse |
1-PHASE PLUG-IN VOLTAGE MONITO |
10 |
|
 |
Wickmann / Littelfuse |
CUR SENSE MONITOR 120VAC 0.5-5A |
1513 |
|
A Monitor - Relay Output device is an industrial automation component that combines signal monitoring capabilities with relay-based output control. It detects electrical or process signals (e.g., voltage, current, temperature) and triggers relay actions to manage machinery, safety systems, or process equipment. These devices are critical in modern industrial systems for ensuring precise control, fault detection, and automated decision-making in complex workflows.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Electromagnetic Relay Output Monitor | Uses physical contacts for high-current switching | Motor starters, HVAC systems |
| Solid-State Relay Output Monitor | Zero-contact switching with semiconductor devices | Precision heating systems, CNC machines |
| Programmable Logic Relay Monitor | Configurable logic and timing functions | Assembly line controls, packaging machines |
| Multi-Function Relay Monitor | Combines monitoring, logging, and communication | Energy management systems, water treatment |
Typical construction includes: - Housing: Industrial-grade plastic/metal enclosure (IP65-IP67 rating) - Relay Module: Electromechanical or solid-state switching elements - Input Interface: Signal conditioning circuits for sensor compatibility - Control Board: Microprocessor with embedded firmware - Communication Ports: RS-485, Modbus TCP, or Ethernet/IP - Power Supply: 24V DC or 110/220V AC universal input - Status Indicators: LED arrays for operational feedback
| Parameter | Importance |
|---|---|
| Rated Voltage (AC/DC): 5-250V | Determines compatibility with control systems |
| Contact Current: 1-16A | Defines maximum load capacity |
| Response Time: 1-50ms | Critical for high-speed automation |
| Electrical Life: 10 -10 cycles | Affects maintenance intervals |
| Insulation Resistance: >100M | Ensures safety and noise immunity |
| Operating Temperature: -20 C to +70 C | Defines environmental tolerance |
| Communication Protocol Support | Enables system integration |
| Manufacturer | Representative Product |
|---|---|
| Siemens | 3RT2 relay series with IO-Link integration |
| Omron | MY2 series industrial relays with LED indicators |
| Schneider Electric | TeSys Giga relays for motor control |
| ABB | CR-P series programmable relay monitors |
| Phoenix Contact | PSR-SCP-24UC relay modules |
Key considerations: - Load type (resistive/inductive) and power requirements - Environmental factors (temperature, humidity, vibration) - Required certification (CE, UL, ATEX) - Communication protocol compatibility - Redundancy requirements for safety-critical systems
Case Study: In a food processing plant, IP67-rated solid-state relays with food-grade housing were selected for washdown areas to ensure reliability under frequent cleaning cycles.
Current developments include: - Integration with IIoT platforms for predictive maintenance - Edge computing capabilities for real-time decision-making - Increased adoption of wireless relay monitoring systems - Development of intrinsically safe designs for hazardous environments - Energy-efficient relay architectures with reduced coil power consumption