Product wizard 
 Website 
English
Deutsch
Français
Italiano
Japanese
Español
Svenska
Русский
繁體中文
简体中文
Polska
한국어
Čeština
Magyar
  
0
0
Quick access
PRO DC BUFFER 24V 40A
         

Icon
Icon
 

General ordering data

Version Buffer module, 24 V
Order No. 2786250000
Type PRO DC BUFFER 24V 40A
GTIN (EAN) 4064675063490
Qty. 1 pc(s).

Dimensions and weights

Depth 130 mm
Depth (inches) 5.118 inch
Height 125 mm
Height (inches) 4.921 inch
Width 65 mm
Width (inches) 2.559 inch
Net weight 1,142 g

Temperatures

Storage temperature -40 °C...85 °C
Operating temperature -25 °C...70 °C
Humidity 5...95 %, no condensation

Environmental Product Compliance

RoHS Compliance Status Compliant with exemption
RoHS Exemption (if applicable/known) 7a, 7cI
REACH SVHC Lead 7439-92-1
SCIP 0ffa7f6e-dcfd-414c-a39f-eb67653cea98

Input

Connection system Screw connection
DC current consumption <0.2 A @ no load, <1 A @ charging process for typ. 10s
DC input voltage range 22.5 - 30 V DC
Input current 0...41 A
Input fuse (internal) Yes
Rated input voltage 24 V DC

Output

Connection system Screw connection
Mains failure bridge-over time
Mains failure bridge-over time, min. 200 ms
Input voltage type DC
Input voltage 24 V
Output current 40 A
Output voltage 22.2 V
Output current at 40 °C 25 A
Output voltage 22.2 ± 0.4 V DC / Vin-1 V(± 0.4 V)
Output voltage, note Corresponds to the input voltage
Overload and short circuit protection Yes
Overload protection Yes
Parallel connection option Yes
Protection against inverse voltage Yes
Rated current 40 A
Surge protection 33 V…35 V

General data

Degree of efficiency ≥ 98% buffer mode
Housing version Metal, corrosion resistant
Humidity 5...95 %, no condensation
MTBF
According to Standard SN 29500
Operating time (hours), min. 2,500,000 h
Ambient temperature 25 °C
Input voltage 24 V
Output power 960 W
Duty cycle 100 %
Mounting position, installation notice Horizontal on DIN rail TS 35, top and bottom 50 mm clearance for free air flow, 10 mm clearance to neighbouring subassemblies.
Protection degree IP20
Short-circuit protection Yes, internal
Storage medium Internal condenser
Weight 1,142 g

EMC / shock / vibration

Interference immunity test acc. to EN 61000-4-2, -3, -4, -5, -6
Noise emission in accordance with EN55032 Class B
Shock resistance IEC 60068-2-27 30 g in all directions
Vibration resistance IEC 60068-2-6 2.3 g (on DIN rail)

Insulation coordination

Insulation voltage input / earth 0.5 kV
Insulation voltage output / earth 0.5 kV
Pollution severity 2
Protection class III, with no ground connection, for SELV

Electrical safety (applied standards)

Electrical machine equipment Acc. to EN60204
Safety extra-low voltage SELV acc. to IEC 60950-1, PELV according to EN 60204-1

Connection data (input)

Conductor cross-section, AWG/kcmil , max.
Conductor cross-section, AWG/kcmil , min. 22 
Conductor cross-section, flexible , min. 0.5 mm²
Conductor cross-section, rigid , max. 16 mm²
Conductor cross-section, rigid , min. 0.5 mm²
Connection system Screw connection
Number of terminals 4 (++--)
Reverse polarity protection Yes, ≤31 V DC
Tightening torque, max. 0.6 Nm
Tightening torque, min. 0.5 Nm
Wire connection cross section, flexible (input), max. 16 mm²

Connection data (output)

Conductor cross-section, AWG/kcmil , max.
Conductor cross-section, AWG/kcmil , min. 22 
Conductor cross-section, flexible , max. 16 mm²
Conductor cross-section, flexible , min. 0.5 mm²
Conductor cross-section, rigid , max. 16 mm²
Conductor cross-section, rigid , min. 0.5 mm²
Connection system Screw connection
Number of terminals 4 (++ / --)
Reverse polarity protection Yes, ≤31 V DC
Tightening torque, max. 0.6 Nm
Tightening torque, min. 0.5 Nm

Connection data (signal)

Number of terminals 4 (Uin OK, Ready, Active, Sgnd)
Wire connection cross-section, flexible (signal), max. 1.5 mm²
Wire connection cross-section, flexible (signal), min. 0.2 mm²
Wire connection method PUSH IN
Wire cross-section, AWG/kcmil , max. 14 
Wire cross-section, AWG/kcmil , min. 28 
Wire cross-section, solid , max. 1.5 mm²
Wire cross-section, solid , min. 0.2 mm²

Signalling

Status indicator Green LED

Downloads

Classifications

ETIM 6.0 EC002850
ETIM 7.0 EC002850
ETIM 8.0 EC002850
ETIM 9.0 EC002850
ECLASS 9.0 27-04-06-92
ECLASS 9.1 27-04-92-01
ECLASS 10.0 27-04-06-92
ECLASS 11.0 27-04-06-92
ECLASS 12.0 27-04-06-92
ECLASS 13.0 27-04-06-92
ECLASS 14.0 27-04-06-92

Approvals

Approvals CE CSAEX CULUS TUEV
ROHS Conform
UL File Number Search UL Website
Certificate no. (cULus) E258476

Related products

Order No.: 2786240000
Type: PRO DC BUFFER 24V 20A
Version:
Buffer module, 24 V
 
Contact
Weidmüller Interface GmbH & Co. KG
 
+49 5231 14-0
+49 5231 14-292083
More information
Decentralised automation solutions
Energy Management Solutions
Industrial Analytics
Industrial IoT Solutions
More information
Mobility Concepts
Photovoltaics
Wind Solutions
Workplace Solutions
More information
Single Pair Ethernet
Weidmüller Configurator
Support & Service
Contact
Disposal Instructions
Engineering data
Repairs and replacement parts