Self -powered RMU protection ADR 241S AM521 (

Send Inquiry

Request To Call Back

Self -powered RMU protection ADR 241S AM521 (

Get a Price/Quote

MOQ : 1 Unit

Self -powered RMU protection ADR 241S AM521 ( Specification

Mechanical Life
>1,000,000 operations

Power Consumption
<5 VA self-powered mode, <3W (auxiliary supplied)

Contact Resistance
<100 m initial

Working Temperature
-10C to +55C

Ambient Temperature
-10C to +55C

Protect Feature
Overcurrent, earth fault, low/high voltage, breaker failure, trip circuit supervision

Coil Power
Not applicable (solid-state relay driver)

Contact Form
SPDT, potential free relay contacts

Coil Voltage
Not applicable (solid-state relay driver)

Dielectiric Strength
2kV AC, 50Hz, 1 min between input/output/auxiliary

Contact Material
Silver alloy contacts

Product Type
Self-powered RMU protection relay

Insulation Resistance
>100 M @ 500 VDC

Theory
Microcontroller based protection relay

Usage
RMU (Ring Main Unit) protection and control

Contact Load
5A @ 250V AC / 30V DC (relay output)

Operate Time
Fast operation, typically < 30 ms

Terminal Type
Screw terminals

Rated Voltage
24-265V AC/DC (self-powered from CT/VT, auxiliary supply optional)

Supply Terminal
Auxiliary terminals for supply & outputs

Size
Standard compact RMU mounting size

Color
Black/grey (as per product image)

Dimension (L*W*H)
96 mm x 96 mm x 75 mm (approx.)

Weight
Approx. 1.2 kg

Operating Altitude
Up to 2000 meters above sea level

Communication
RS485 Modbus (optional)

Frequency Range
50/60 Hz compatible

Trip Output
1 NO/NC selectable relay

Standards Compliance
IEC 60255, IEC 61010, IS 3231

Event Logging
Last 100 events stored

Indication
LED indication for relay, power, and trip states

Reset Mode
Manual & auto reset selectable

Humidity
Up to 95% RH non-condensing

IP Rating
IP54 (front), IP20 (rear)

Display
3-digit numeric LED

Mounting Method
Flush panel mounting with rear connectors

Self -powered RMU protection ADR 241S AM521 ( Trade Information

Minimum Order Quantity
1 Unit

Payment Terms
Cash in Advance (CID)

Supply Ability
10 Units Per Month

Delivery Time
30 Days

Main Domestic Market
All India

About Self -powered RMU protection ADR 241S AM521 (

The Self-powered RMU protection ADR 241S AM521 is a highly recommended, potent solution for Ring Main Unit (RMU) protection and control. Its incomparable reliability and pristine build cater to high-demand, mission-critical applications. With features like selectable relay outputs, LED status indication, swift operation under 30 ms, and comprehensive event logging, it offers seamless monitoring and control. Its scarce availability is attributed to its robust compliance with IEC and IS standards, compatibility with a broad voltage range, and microcontroller-based precision, ensuring unparalleled safety for electrical systems.

Distinctive Performance and Application

ADR 241S AM521 is engineered for pristine protection and robust control of RMUs. Special features include event logging for 100 recent activities and fast-relay operation under 30 ms. The device supports both manual and auto reset, providing adaptable responses to system conditions. With IP54 (front) protection and strong standards compliance, this protection relay excels in demanding, potent environments, making it highly recommended for modern electrical installations where safety and reliability are paramount.

Offer, Delivery, and Payment Information

This sought-after protection relay is offered with flexible payment terms to suit diverse client needs. Upon order confirmation, the ADR 241S AM521 will be swiftly handed over to our logistics partner for prompt delivery. Timelines for arrival are typically communicated upfront, ensuring transparency. We cater to the main domestic market across India and guarantee packaging integrity. Contact our export, supply, or trading departments to receive your unit at a mutually agreed schedule for seamless project integration.

FAQ's of Self -powered RMU protection ADR 241S AM521 (:

Q: How does the ADR 241S AM521 ensure RMU protection?

A: The ADR 241S AM521 provides potent RMU protection by monitoring overcurrent, earth faults, voltage anomalies, breaker failures, and trip circuits, enabling rapid isolation and safeguarding the system.

Q: What are the main usage scenarios for this protection relay?

A: This device is ideal for use in Ring Main Units (RMUs) for protection, monitoring, and control in power distribution networks, contributing to operational safety and asset reliability.

Q: When can I expect delivery after placing an order for the ADR 241S AM521?

A: Once your order is confirmed, the ADR 241S AM521 will be handed over for dispatch, and arrival timelines are typically communicated upfront to ensure dependable delivery schedules.

Q: Where can the ADR 241S AM521 be installed?

A: It is designed for flush panel mounting with rear connectors, fitting compactly in standard RMU setups across industrial, commercial, and utility electrical installations throughout India.

Q: What benefits does the event logging feature offer?

A: The integrated event logging stores the last 100 events, providing operators with an invaluable record for diagnostics, trend analysis, and swift maintenance interventions.

Q: How does the relay output configuration work?

A: The ADR 241S AM521 features a selectable relay output (1 NO/NC), allowing users to adapt to varying circuit requirements for both signaling and control tasks.

Tell us about your requirement