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TELE HAASE

Panel Energy Meters & CT's Current Transformers

Current transformers are used extensively for measuring current and monitoring the operation of the power grid. Along with voltage leads, revenue-grade CTs drive the electrical utility's watt-hour meter on many larger commercial and industrial supplies.

Over-voltage category: III
Rated surge voltage 4 kV/6 kV
Housing: self-extinguishing plastic, IP 40 protection class
Mounting: Profile rail TS 35
Shock protection: IP 20 protection class, according to VBG 4

Current Monitor 1 Ph Multi Function 10a

Current Monitor 1 Ph Multi Function 10a

Voltage Monitor 3 Ph 1 C/O Phase Failure

Voltage Monitor 1/3 Ph Phase Failure

Load Alternator + Timer E1ZMLA10 24-240V AC/DC

Time Relay Load Alternator 5 functions

Monitoring Relay Level Control 115v AC

Monitoring Relay Level Control 230v AC

Temperature Monitor 1 C/O 230v AC

Voltage Monitor 3 Ph. Phase Sequence Failure

Voltage Monitor 3 Ph Phase Rotation/Asymmetry

Voltage Monitor 3 Ph Phase Rotation/Asymmetry

Temperature Monitor 24-240v AC

Temperature Monitor 24-240v AC

Voltage Monitor 1/3 Ph Multi Function 2 C/O

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Accessories & Related products

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Blog

Reliable Protection, Compact Form – Fuse Holders Built to Perform

The DF Electric 485121 fuse holder delivers reliable protection in a compact, DIN-rail-ready design. Built for panel builders who won’t compromise on safety or performance, it’s the trusted choice for tough environments and tight spaces.

Blog

Stego Enclosure Heaters with Loop

STEGO’s new loop enclosure heaters are a smart fix for condensation in control cabinets. They heat evenly, install fast with no tools, and come in a range of sizes from 10 to 150 W. They're tough, touch-safe, and even have a built-in thermostat option—everything you need to protect your gear and keep things running smoothly.

Blog

Precision in Motion: Kübler Linear Measurement Systems at Demesne Electrical

Precise, Durable Linear Measurement from Kübler
Browse our range of Kübler draw wire encoders and linear measurement systems, designed for accurate position and speed sensing in industrial and OEM applications. Built for tough environments. Trusted by automation professionals.

Blog

New on the Market: RKA Aluminium Terminal Blocks for Copper and Aluminium Conductors

Designed by HORA eTec, the RKA series offers a complete lineup of aluminium terminal blocks built for both aluminium and copper conductors. Every model in the range includes push-through protection, is finger-safe, and is built with installation efficiency in mind. From compact control panels to large-scale systems, here’s the full breakdown—from the RKA 16 to the RKA 300.

Blog

Smarter Control Starts Here Explore the TELE Haase Range at Demesne

In complex, high-stakes electrical environments, precision, safety, and performance aren't optional, they're essential. That’s why at Demesne Electrical, we supply solutions that go beyond compliance, empowering engineers and panel builders to build smarter, more connected systems.
One of our most trusted partners in this space is TELE Haase, an industry leader in intelligent monitoring and automation components. From load protection to digital performance sensors, the TELE range offers future-focused tools that streamline system diagnostics and improve long-term reliability.

Blog

Power Supply Efficiency Testing – What Irish Electrical Engineers Need to Know

Think your power supply is running at 95% efficiency?
Don’t just trust the datasheet, test it. In this post, we break down how to accurately measure power supply efficiency using the right tools, setups, and real-world conditions. Essential reading for anyone working with industrial power in Ireland.

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