Schneider SEP888 Base Unit

Overview

The Schneider SEP888 is a base unit designed for the Sepam Series 80 protection relays. It supports advanced monitoring and control functions in medium and low-voltage electrical distribution networks. Thanks to its mimic-based user interface, the unit simplifies interaction for system operators. In addition, its rugged build and flexible voltage input make it ideal for harsh industrial environments.

Technical Specifications

Product Name: SEP888 Base Unit
Series: Sepam Series 80
Manufacturer: Schneider Electric

User Interface

• Type: Mimic-based UMI (User Machine Interface)

• Display Resolution: 128 × 240 pixels

• Number of Keys: 14

• Status LEDs:

• 2 LEDs for Sepam operating status (front and back)

• 9 LEDs for parameter indication (front)

Electrical Characteristics

• Rated Supply Voltage: 24–250 V DC

• Voltage Tolerance: -20% to +10%

• Maximum Consumption: < 16 W

• Inrush Current: < 10 A for 10 ms

Battery

• Type: Lithium 3.6 V (1/2 AA size)

• Life (Energized): 10 years

• Life (Not Energized): 8 years

Mechanical Details

• Mounting Mode: Fixed

• Mounting Support: Plate

• Height: 222 mm

• Width: 264 mm

• Depth: 89.7 mm

• Weight: 4.22 kg

Environmental Ratings

• Fire Resistance: 650 °C (IEC 60695-2-11)

• IP Degree of Protection:

• IP20 (Other panels)

• IP52 (Front panel)

• NEMA Protection: Type 12

• Immunity to Microbreaks: 100 ms