Connectivity
Electronics
Automation & Software
Workplace & Accessories
Assembly
Relay Modules & Solid-State Relays
Isolating amplifier and measuring transducer
Power Supplies
Electronics Housings
Lightning and Surge Protection
Photovoltaics
e-mobility
Fieldbus Distributors
Switched-mode power supply units
Electronic load monitoring
Communication modules
Uninterruptible power supply
DC/DC converter
Diode- and redundancy modules
Pre charge unit
Decentralised switched-mode power supply units IP65
Decentralised electronic load monitoring IP65
Accessories
UPS control unit
Battery module
Buffer module
General ordering data
Version
Buffer module, 24 V
Order No.
2786240000
Type
PRO DC BUFFER 24V 20A
GTIN (EAN)
4064675063469
Qty.
1 pc(s).
Dimensions and weights
Depth
130 mm
Depth (inches)
5.118 inch
Height
125 mm
Height (inches)
4.921 inch
Width
55 mm
Width (inches)
2.165 inch
Net weight
1,043 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...21 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
20 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
20 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
480 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
1,043 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.
10
Conductor cross-section, AWG/kcmil , min.
26
Conductor cross-section, flexible , min.
0.22 mm²
Conductor cross-section, rigid , max.
6 mm²
Conductor cross-section, rigid , min.
0.18 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.
4 mm²
Connection data (output)
Conductor cross-section, AWG/kcmil , max.
10
Conductor cross-section, AWG/kcmil , min.
26
Conductor cross-section, flexible , max.
4 mm²
Conductor cross-section, flexible , min.
0.22 mm²
Conductor cross-section, rigid , max.
6 mm²
Conductor cross-section, rigid , min.
0.18 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
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
Order No.:
2786250000
Type:
PRO DC BUFFER 24V 40A
Version:
Buffer module, 24 V
Version
Buffer module, 24 V
Order No.
2786240000
Type
PRO DC BUFFER 24V 20A
GTIN (EAN)
4064675063469
Qty.
1 pc(s).
Depth
130 mm
Depth (inches)
5.118 inch
Height
125 mm
Height (inches)
4.921 inch
Width
55 mm
Width (inches)
2.165 inch
Net weight
1,043 g
Storage temperature
-40 °C...85 °C
Operating temperature
-25 °C...70 °C
Humidity
5...95 %, no condensation
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
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...21 A
Input fuse (internal)
Yes
Rated input voltage
24 V DC
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
20 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
20 A
Surge protection
33 V…35 V
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
480 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
1,043 g
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 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 machine equipment
Acc. to EN60204
Safety extra-low voltage
SELV acc. to IEC 60950-1, PELV according to EN 60204-1
Conductor cross-section, AWG/kcmil , max.
10
Conductor cross-section, AWG/kcmil , min.
26
Conductor cross-section, flexible , min.
0.22 mm²
Conductor cross-section, rigid , max.
6 mm²
Conductor cross-section, rigid , min.
0.18 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.
4 mm²
Conductor cross-section, AWG/kcmil , max.
10
Conductor cross-section, AWG/kcmil , min.
26
Conductor cross-section, flexible , max.
4 mm²
Conductor cross-section, flexible , min.
0.22 mm²
Conductor cross-section, rigid , max.
6 mm²
Conductor cross-section, rigid , min.
0.18 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
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
Status indicator
Green LED
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
ROHS
Conform
UL File Number Search
UL Website
Certificate no. (cULus)
E258476
Order No.:
2786250000
Type:
PRO DC BUFFER 24V 40A
Version:
Buffer module, 24 V
This function is provided via the external service provider https://supplyframe.com. By clicking on "Continue" you will be redirected to this page. This leads to a data transfer of personal data to non-European countries. Please check the data protection policy of the external website, for which Weidmüller assumes no responsibility and liability.
;)
;){kind=link}