The R301 Earth Leakage Relay Mikro delivers high-precision residual current protection across Malaysia, safeguarding main switchboards, OEM automation control cabinets, manufacturing plants, and electrical distribution lines from ground insulation failure.
At Intech Electric Sdn Bhd, we empower diverse industrial sectors across Malaysia with highly reliable electrical and automation solutions. The R301 EARTH LEAKAGE RELAY MIKRO is an advanced digital residual current relay designed to continuously monitor earth leakage levels, prevent dangerous electrical shock risks, and safeguard valuable machinery against earth insulation breakdowns.
Designed for zero-sequence current transformer (ZCT) sensing, standard panel flush mounting, and fast-acting fault isolation, the Mikro R301 provides essential ground protection across critical industrial sectors:
Intech Electric Sdn Bhd is able to supply all kinds of electrical and electronics products. Our extensive range covers projects wiring materials, electrical automation equipment, solar installation spare parts, wire and cable support systems, tester meter equipment and calibration services, indoor and outdoor LED lighting, machine maintenance spare parts, power cable and connection materials, power energy saving and voltage stabilizers, as well as switchboard marker materials and accessories.
| Feature Parameter | Mikro R301 Digital Earth Leakage Relay | Conventional Mechanical Earth Leakage Relay |
|---|---|---|
| Processing & Accuracy | Microprocessor Digital Current Sampling | Analog Circuitry / Mechanical Calibration Drift |
| Sensitivity & Delay Settings | Precision Digital Dial Adjustment for Current & Delay | Coarse Manual Dial / Fixed Time Response |
| Fault Status Indication | Clear LED Trip & Real-Time Leakage Pickup Status | Mechanical Flag Drop Only |
| Noise & Inrush Immunity | Built-in Harmonic Filtering & High Transient Immunity | Prone to Nuisance Tripping from Inrush Currents |
The R301 monitors low-voltage networks via a Zero-Sequence Current Transformer (ZCT) to detect residual ground leakage, quickly tripping main circuit breakers to prevent electrocution and equipment fire risks.
Manufacturing plants, machinery engineering projects, OEM switchboard builders, and commercial complexes across Malaysia install the R301 to ensure full electrical compliance and equipment protection.
Yes, the R301 connects to an external Zero-Sequence Current Transformer (ZCT) that encompasses all phase and neutral conductors to detect vector current imbalances.
Yes, Intech Electric supplies compatible ZCT sensors, project wiring materials, power cables, wire support systems, and switchboard markers for complete protection installations.
OEM builders favor the R301 due to its standardized panel cut-out dimensions, clear status indicators, high electromagnetic noise immunity, and long-term operating durability.
Advanced digital microprocessor filtering screens out transient voltage spikes, switching noise, and high-frequency harmonics, ensuring the relay trips only on genuine earth faults.
Yes, the R301 is widely installed in commercial solar inverter output panels and AC distribution sub-stations to prevent insulation faults and line-to-ground risks.
The built-in test button activates a simulated trip output, enabling engineers to verify circuit breaker trip mechanisms and alarm contact wiring without external current injectors.
Yes, Intech Electric Sdn Bhd provides professional tester meter equipment alongside certified calibration services to support safety audits and plant maintenance.
You can submit an inquiry or request an immediate best price quote by contacting Intech Electric Sdn Bhd directly on WhatsApp at 601155877449.
We installed R301 EARTH LEAKAGE RELAY MIKRO units across our main plant switchboards in Muar. Excellent fault sensitivity, and Intech Electric supplied them with super fast delivery!
Intech Electric Sdn Bhd is our preferred supplier for electrical protection relays in Selangor. Their WhatsApp service responded instantly to our urgent order for replacement earth leakage relays.
The R301 relay is extremely reliable for high-spec factory machinery protection in Seberang Perai. Genuine stock and fantastic support from the Intech Electric technical team.
Fast delivery to Bintulu! Intech Electric provided R301 Mikro relays together with compatible ZCT coils. Highly dependable supplier for all our industrial engineering needs.
Great experience sourcing protection relays from Intech Electric. The R301 unit installed in our plant switchboard operates faultlessly to maintain line safety.
Intech Electric offers top quality electrical automation spares and reliable support. The R301 earth leakage relay was easy to mount and performs with complete accuracy.
