Overview

The ATE300M is a multi-loop wireless temperature sensor specifically designed for monitoring multiple electrical joints in low-voltage switchgear, particularly drawer cabinets. It features a host unit that connects to 1-6 external NTC probes, enabling centralized monitoring of multiple temperature points. The sensor is powered by an external AC/DC power supply and transmits data via wireless communication over long distances. With rail or tie mounting, it offers flexible installation in various cabinet layouts.

Highlight

Multi-point monitoring

  • Up to 6 NTC probes per host
  • Ideal for drawer cabinets
  • Low cost per point
  • Centralized data management

Long transmission range

  • 1000m range (433-510MHz)
  • Reliable in large plants
  • Penetrates multiple cabinets
  • Campus-wide monitoring

Flexible power supply

  • AC 85-265V or DC 100-300V
  • No battery, maintenance-free
  • Compatible with various sources
  • Continuous operation

Easy installation

  • DIN rail or tie mounting
  • Probe fixes with screws/ties
  • Adapts to space constraints
  • Cable lengths: 0.5/1.2/2.5m

Function

Multi-channel Temperature Measurementsupports 1-6 NTC probes (optional), aperture 12mm, cable lengths: 0.5m, 1.2m, 2.5m
Power SupplyAC 85~265V or DC 100~300V
Wireless Communicationfrequency 433-510MHz, open area range up to 1000m
Sampling Frequencyconfigurable 1-240s
Installationrail type or tie type
Applicationelectrical joints in low-voltage switchgear (0.4kV)

Specification

English ParameterValue
Wireless Frequency433-510MHz
Communication Distance (open area)1000m
Sampling Frequency1-240s configurable
Power SupplyAC 85~265V, DC 100~300V
Temperature Range-40°C ~ +150°C
Accuracy±1°C
InstallationRail type / Tie type
Sensor ProbeOptions 1-6, split-type NTC: aperture 12mm, lengths 0.5m, 1.2m, 2.5m
Voltage Level0.4kV low-voltage only
ApplicationJoints in low voltage switchgear

Additional NTC Probes – various cable lengths available (0.5m, 1.2m, 2.5m)

Mounting Accessories – rail clips, tie wraps

Summary

The ATE300M multi-loop wireless temperature sensor provides an efficient solution for monitoring multiple temperature points in low-voltage switchgear (0.4kV). By connecting up to 6 external NTC probes to a single host, it reduces equipment costs while enabling centralized monitoring. With long-distance wireless transmission up to 1000m, flexible power supply options, and configurable sampling frequency, it adapts to various application scenarios. Factory pre-pairing with ATC600-M simplifies installation and ensures reliable communication.

FAQ

Can ATE300M be used in medium-voltage or high-voltage switchgear?

No. ATE300M is designed specifically for 0.4kV low-voltage applications. For 3-35kV medium-voltage and high-voltage switchgear, please use ATE200/ATE200P or ATE400 series sensors which are designed with appropriate insulation and safety features.

How many probes can one ATE300M host support?

The ATE300M supports 1 to 6 NTC probes, configurable according to your monitoring needs.

What is the power requirement for the ATE300M?

It accepts AC 85~265V or DC 100~300V, making it compatible with various power supplies in switchgear.

How far can the wireless signal transmit?

In open areas, the communication distance can reach up to 1000m. Actual range may vary depending on cabinet shielding and environmental factors.

Can I adjust the sampling frequency?

Yes, the sampling frequency is configurable from 1 second to 240 seconds to balance monitoring resolution and data traffic.

What are the probe specifications?

The NTC probes have a 12mm aperture and are available in cable lengths of 0.5m, 1.2m, and 2.5m to suit different installation points.

How is the sensor installed in a drawer cabinet?

The host can be mounted on a DIN rail or secured with ties inside the cabinet. Probes are fixed to the measurement points using screws, ties, or silicone adhesive.

Can the ATE300M work with ATC600-M?

Yes. The ATE300M is designed to pair with ATC600-M coordinator. The group number should match, and installation follows the code label sequence.

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Customer Testimonials

What Our Clients Say

PD Monitoring

We’ve used Acrel products on several projects, and they’ve been reliable from day one. Installation was straightforward, and the support team was always quick to answer our questions.

Saudi Arabia

Mohamed Elshazly

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Tendering Director

Power Monitoring Solution

We were looking for a cost-effective metering solution, and Acrel was a great fit. The products work well, communication is stable, and delivery was on schedule.

United Arab Emirates

Asad Janjua

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Electrical Engineer

Temperature Monitoring

The wireless temperature monitoring system has been running smoothly since commissioning. It helps us identify potential issues early and reduces the need for routine inspections.

Saudi Arabia

Abbas Matar

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Project Manager

Long-Term Partnership

We’ve been working with Acrel for several years now. The products are dependable, reasonably priced, and the overall experience has always been positive.

Philippines

Arnold Bagabaldo

–

CEO

Technical Support

What we appreciated most was the technical support. The Acrel team helped us choose the right products and stayed involved until the project was completed.

Canada

David Dudley

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System Integration Manager

SCADA Integration

The products integrated easily with our existing SCADA platform. Everything worked as expected, and commissioning was completed without any major issues.

Russia

Alexey Petrov

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Sales manager