80A Redundancy Module for 24/48V DC Systems, SITOP RED1200

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Product Specifications

Brand: Siemens
Part Number: 6EP4348-7RB00-0AX0
Type: Redundancy Module
Series: SITOP RED1200
Rated Output Current: 80 A
Input Voltage: 12...48 V DC (10...58 V range)
Efficiency: 97.5%
Operating Temperature: -40...+70 °C

Product Description

The SITOP RED1200 (6EP4348-7RB00-0AX0) is an 80 A redundancy module for decoupling two SITOP power supplies in 24/48 V DC systems, supporting 1+1 redundancy and parallel capacity increase with up to 97.5% efficiency.

Core Function

The redundancy module connects two identical power supplies so that if one fails, the other seamlessly continues powering the load without interruption. Each input channel handles up to 40 A, combining to a total output of 80 A. The module can also connect supplies in parallel for increased total output capacity.

Technical Specifications

Rated Output Current	80 A (2 x 40 A per channel)
Input Voltage	12...48 V DC (10...58 V range)
Efficiency	97.5%
Power Loss	46 W (typical at rated load)
No-load Power Loss	<= 0.1 W
MTBF at 40 °C	4,900,000 hours

Installation and Environment

Housed in a 45 mm-wide DIN-rail enclosure with push-in terminals accepting 0.75...16 mm2 wire, the module operates from -40 to +70 °C with natural convection cooling. It carries CE, cULus (UL 508), UKCA, and CB certifications, with IP20 protection for cabinet installation.