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Custom Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms Manufacturers, Exporters
Custom Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms Manufacturers, Exporters
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Custom Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms Manufacturers, Exporters
Custom Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms Manufacturers, Exporters

Custom Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms Manufacturers, Exporters

Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms is a maintenance-free capacitive buffer module (commonly listed as part number 85394) within Murr elektronik's power management product line. Designed specifically for 24V DC industrial systems, Its core function is to bridge short-term grid fluctuations or power outages, preventing equipment downtime, data loss, and mechanical damage. It is particularly suited for automation scenarios sensitive to power supply continuity.

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Product Description

Overview

The Murr elektronik MB CAP BUFFER MODULE 20/24 - 200ms is a maintenance-free capacitive buffer module (commonly listed as part number 85394) within the power management product line. Designed specifically for 24V DC industrial systems, its core function is to bridge short-term grid fluctuations or power outages, preventing equipment downtime, data loss, and mechanical damage. It is particularly suited for automation scenarios sensitive to power supply continuity. The designation "20/24" denotes a 20A output current and 24V nominal voltage, while "200ms" indicates the typical buffer duration under full load. This module provides an efficient solution for addressing over 80% of millisecond-level power interruptions.

I. Key Electrical Characteristics
Input/Output Parameters:
  • Input Voltage: 23-30V DC (compatible with standard 24V DC industrial power supplies), withstands 35V DC transient voltage peaks;
  • Output Performance: Adjustable voltage 22-28V DC, rated output current 20A, peak current up to 26A in buffer mode, ripple as low as 200mV (peak-to-peak), ensuring stable load power supply;
  • Buffering Capacity: 200ms buffer time at 20A full load, extendable to 4s at 1A light load. Energy storage capacity approx. 0.1kJ, covering most short-term power interruption scenarios.
Charging & Standby:
  • Charging current: 0.5A. Typical charging time: 32 seconds, with full energy storage achievable in a maximum of 45 seconds.
  • Standby current consumption: only 85mA, balancing energy efficiency with rapid response requirements.
II. Mechanical & Installation Design
  • Dimensions & Weight: 62mm (W) × 115mm (H) × 165mm (D), weighing only 0.66kg. Its slim profile fits compact control cabinet spaces.
  • Mounting Method: Supports TH35 standard rail mounting (compliant with EN 60715), requiring no additional tools for secure installation.
  • Wiring Configuration: Features pluggable screw terminals. Main circuit supports 4mm² copper wires (tightening torque 0.5-0.6Nm). Signal circuit accommodates 0.25-1.5mm² wires (tightening torque 0.4Nm). Supports live-wire operation.
III. Functional Advantages & Protection
  • Maintenance-Free: Utilizes supercapacitor energy storage technology, eliminating battery degradation issues with lifetime maintenance-free operation. Operating temperature range spans 0-70°C (storage temperature -25-85°C), suitable for harsh industrial environments.
  • Status Monitoring: Integrated dual-color LED indicator provides intuitive display of charging, operational, and fault statuses. Equipped with 2 sets of signal contacts for remote feedback.
  • Safety Protection: Features overload and short-circuit protection. Input/output complies with SELV/PELV safety ratings. Certified to EN 60950-1 and international certifications including cULus and GL. EMC meets EN 55022 Class B.
  • Scalability: Supports parallel operation of multiple modules to expand buffering capacity based on load requirements. Jumper settings distinguish buffered/non-buffered loads.
IV. Typical Application Scenarios
  • Core Applications: Industrial automation production lines, machine tools, robotic workstations, etc. Bridges grid voltage sags to ensure continuous operation of PLCs, sensors, and servo drives.
  • Data Protection: Devices connected to PCs or controllers receive 200ms buffer time during power loss to complete data storage and controlled shutdown, preventing program loss.
  • Peak Current Support: Functions as an energy storage unit to provide supplemental current for short-duration peak loads like motor starts, preventing power supply overload trips.
Specifications
Technical Data Details
ELECTRICAL DATA
Security level SELV/PELV
Parallel connection yes
ELECTRICAL DATA INPUT
Input voltage Dc min. 23 V
Input voltage DC max. 30 V
Input current 85 mA
Charging current max. 0.5 A
Charging time min. 20 s
Charging time max. 45 s
Protection against voltage peaks DC max. 35 V
Efficiency 95%
ELECTRICAL DATA OUTPUT
Output voltage adjustable yes
Output voltage DC 24 V
Output voltage Dc min. 22 V
Output voltage Dc max. 28 V
Output current 20 A
Output current buffer operation 26 A
Buffer time min. 0.2s @ 20 A
Buffer time max. 4s @ 1A
Ripple (s-s) max. 200 mV
MECHANICAL DATA | MOUNTING DATA
Mounting method geschnappt
Suitable for mounting type Mounting rail TH35, (EN 60715)
ENVIRONMENTAL CHARACTERISTICS | ELECTROMAGNETIC COMPATIBILITY
Emission standard for equipment in residential environments (IEC 61000-6-3) compliant
Immunity standard for industrial environments (IEC 61000-6-2) compliant
ENVIRONMENTAL CHARACTERISTICS | CLIMATIC
Operating temperature min. 0°C
Operating temperature max. 70°C
Derating from 55°C
Storage temperature min. -25°C
Storage temperature max. 85°C
CONFORMITY
Product standard EN 60950-1
EMC EN 55022 B
Models & Alternative Information
Model Profile
  • Model Designation: MB Cap 20/24 - 200ms
  • Article Number: 85394
  • Alternative Product: 85468
  • Country of Origin: CZ
  • Weight: 0.66 kg
Input / Output Designations
  • IN: 23-30 VDC
  • OUT: 22-28VDC / 20A for 200ms
Delivery Information
  • Dimensions: 62 * 115 * 145mm
  • Weight: 0.66 kg
  • Delivery Detail: Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.
Manuals & Resources
PDF Icon

Murr elektronik MB CAP BUFFER MODULE 2024 - 200ms datasheet.pdf

Datasheet Document Available
Frequently Asked Questions (FAQ)
What is the primary function of the MB CAP BUFFER MODULE 20/24 - 200ms?
Its primary function is to serve as a maintenance-free capacitive buffer module for 24V DC systems. It bridges short-term power grid fluctuations and outages, protecting sensitive industrial control systems from downtime, data loss, and hardware damage.
How long can this module sustain system power during an interruption?
Under a full 20A load, the module provides a buffer time of 200ms. If the load is lighter (for example, 1A), the buffer time can extend up to 4 seconds to cover longer outages.
Why is this buffer module considered "maintenance-free"?
Unlike traditional battery-backed backup modules, this module utilizes supercapacitor energy storage technology. Supercapacitors do not suffer from the chemical degradation associated with batteries, eliminating the need for periodic replacement and maintenance.
Can multiple buffer modules be connected in parallel?
Yes, this module supports parallel connection, allowing you to combine multiple units to expand your buffering capacity according to the requirements of your specific load.
What mounting configurations and wiring are required for installation?
The module is designed for standard TH35 mounting rails (EN 60715) and fits compactly into control cabinets. It utilizes pluggable screw terminals supporting live-wire operations with wire size capabilities up to 4mm² for the main circuit.
What built-in protection and diagnostic tools does the module have?
It features integrated overload and short-circuit protections. Diagnostics include a dual-color LED status indicator on the front panel and two sets of remote signaling contacts for continuous status monitoring.

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