Elmex Industrial Automation Control Products

2. Leakage monitoring unit (ELMU-U)

This unit is used in conjunction with Elmex zero sequence current transformers to monitor ground fault currents.

Power supply: 90-275V AC/DC universal power supply

Monitoring method: True RMS detection

Sensitivity setting: User adjustable

Delay setting: 0 to 10 seconds, multiple options available

Indication method: LED bar chart displays leakage current levels (25%, 50%, 75% trip values)

Output: SPDT relay, NO contact capacity 10A @ 277V AC, NC contact capacity 5A @ 250V AC

Additional feature: Supports remote testing and reset button connection

Transmitter

1. Instrument current transmitter (ICT)

Used to convert the CT secondary current into a 4-20 mA DC signal for easy acquisition by PLC or SCADA systems.

Input current: 0-5 A

Output signal: 4-20 mA DC

Power supply: 24V AC

Isolation feature: achieving electrical isolation between input and output

Accuracy: Set accuracy ± 2.5%

Indicator light: Green LED indicates power/operating status

2. Voltage transmitter (VT)

Although detailed parameters are not provided in the catalog, its function is similar to that of a current transmitter, used to convert voltage signals into standard analog outputs, and widely used in power monitoring and energy management systems.

General characteristics and technical specifications of the product

Elmex's full range of control products have a high degree of consistency in design, mainly reflected in the following aspects:

1. Mechanical structure

Installation method: TS 35 DIN rail installation

Shell material: Polycarbonate, flame retardant rating meets UL 94 V-0

Dimensions: 85 x 70.05 x 17.5 mm (height x depth x width)

Weight: ranging from 62 to 70 grams

2. Electrical and Environmental Specifications

Working temperature: -10 to 55 ° C

Storage temperature: -20 to 70 ° C

Humidity: ≤ 95% RH, no condensation

Protection level: shell IP40, terminal IP20

3. Power supply and accuracy

Power supply voltage: 240V AC or 24V AC/DC (supported by some models)

Frequency: 50/60 Hz

Power consumption: ≤ 8VA (timer) or ≤ 20VA (protective relay)

Setting accuracy: ± 5% of full scale

Application scenarios and selection suggestions

Elmex products are widely used in the following industrial fields:

Motor Control Center: Star Triangle Timer Used for High Power Motor Startup

Automated production line: power on/off delay timer for sequential control

Distribution system: phase sequence protection relays and leakage monitoring units ensure system safety

Data acquisition system: Current/voltage transmitters provide standardized signals for PLC/SCADA

When selecting, it is recommended to consider the following factors comprehensively:

Functional requirements: Do you need functions such as delay, loop, pulse, and protection

Time range: Select the appropriate time slot according to the process requirements

Output type: NO, NC or C/O, whether the contact capacity meets the load requirements

Power supply mode: whether it matches the on-site power supply

Installation space: 17.5mm ultra-thin design suitable for compact control cabinets