Selec 900EFR Earth Fault Relay

Product Summary:
The Selec 900EFR is an advanced Earth Fault Relay designed for monitoring and protecting electrical systems from earth leakage faults. Suitable for both single-phase and three-phase systems, it offers programmable frame sizes and dual SPDT relay outputs with high accuracy and flexible timing features.

Key Features:

• Earth fault monitoring for 1Ø & 3Ø systems

• Programmable frame sizes: 160A, 250A & 630A

• Trip setting: 10%–80% of frame rating

• Dual relay output (2 x 1 C/O SPDT)

• Trip and pre-alarm relays independently programmable

• Response time: 100ms

• Time delays: 0–99.9 sec (Trip, Recovery, Power ON)

• Front and remote test/reset functionality

• 3-digit LCD with backlight

• Compact 35mm DIN rail mounting

• Wide supply voltage: 85–270V AC/DC

• CE & RoHS certified

Application:

• Low-voltage power distribution panels

• MCCB and circuit breaker coordination

• Industrial automation panels

• Generator and transformer protection

• Building electrical systems

Product Benefits:

• Enhances system safety and protection

• Quick fault response with programmable delays

• Easy installation with DIN rail mounting

• Versatile input for multiple system configurations

• Ideal for OEMs and panel builders

Q1: What types of electrical systems is the Selec 900EFR compatible with?
A1: The Selec 900EFR supports 1Ø-2W, 3Ø-3W, and 3Ø-4W systems, making it suitable for various electrical network configurations.

Q2: Can I program both trip and pre-alarm settings independently?
A2: Yes, both the trip and pre-alarm relay outputs are independently programmable, offering flexible protection levels.

Q3: What certifications does the Selec 900EFR hold?
A3: The device is CE and RoHS certified, ensuring safety, reliability, and environmental compliance.