GENERAL DESCRIPTION
The
PISA-B
devices
eight channel protection modules with integrated
electronic fuses for 24V systems. They distribute the
current of a large power source to eight output
channels each of lower current and therefore allowing
for smaller wires to be used.
The output current of each channel can be set
individually. Channel 1 and 2 are optimized for loads
with large input capacitances. Connect such loads to
these channels to avoid false tripping or unexpected
switch-off such loads.
The PISA-B-812-B1 is equipped with a common
tripping signaling relay contact that reports tripped
channels, while the PISA-B-812-B4 has a digital coded
signal output built in for this function.
All PISA-B devices are equipped with push-in
terminals, which are optimized for automated wiring.
The mechanically robust housing is made of a high-
grade, reinforced molded material on the front and
of an aluminum body, which permits surrounding
temperatures up to +70°C.
ORDER NUMBERS
Description:
Electronic Fuse PISA-B-812-Bx-xx
Order Number:
PISA-B-812-B1 Common signaling relay contact
PISA-B-812-B4 Digital coded signal output
Accessories:
BUS-BAR1-L102: A set for 2 modules
BUS-BAR1-L155: A set for 3 modules
BUS-BAR1-L500: Single piece L=500mm
All parameters are specified at 24Vdc input voltage, 8x5A output currents, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN
are
DIN
rail
mountable
ELECTRONIC FUSE
8X 24V, 2X 1-12A, 6X 1-10A
• Eight Current Controlled Outputs
• Adjustable Output Currents for Each Channel
• Selective Tripping of Overloaded Channels
• Compatible even with large Capacitive Loads
• Output Currents Displayed Live on LED Matrix
• Remote Reset or Reset via Pushbuttons
• Common Signaling Relay Contact for Tripped
Channels (PISA-B-812-B1)
• Digital Coded Signal Output for Tripped Channels
(PISA-B-812-B4)
• Parameter Settings can be Locked by PIN-Code
• ON/OFF Feature for Each Individual Output
• Easy Wiring - Distribution Terminals for Negative Pole
• 3 Year Warranty
SHORT-FORM DATA
Input voltage
Required input voltage
for turning-on of outputs
Input current
Internal consumption
Nominal output current
Sum current all channels
Current limitation
CH1-CH2
CH3-CH8
Tripping characteristics
Tripping delay
CH1-CH2
CH3-CH8
CH1-CH8
CH1-CH8
Max load capacitance capability
CH1-CH2
CH3-CH8
Voltage drop per channel
CH1-CH2
CH3-CH8
Standby losses
Power losses
Temperature range
Size (w x h x d)
Weight
MAIN APPROVALS
For details and a complete approval list, see chapter 20.
UL 2367
www.pulspower.com
PISA-B-812-B1
PISA-B-812-B4
DC 24V
-20%/+25%
19.6Vdc
40A
40mA
PISA-B-812-B1
35mA
PISA-B-812-B4
Adjustable
1/2/3/4/6/8/10/12A CH1 and CH2
1/2/3/4/6/8/10A
CH3 to CH8
40A
Below +60°C ambient
30A
At +70°C ambient
Derate between +60°C and +70°C
200%
For 1A setting
150%
For 2 - 8A settings
130%
For 10 - 12A settings
50A
Slow or Fast
Selectable
2ms – 2s
At short circuit
<10ms
At short circuit
1.1s
For slow tripping at 1.5x
nominal current
0.22s
For fast tripping at 1.5x
nominal current
100mF
Per channel
20mF
Per channel
125mV
For 10A load
165mV
For 10A load
1W
10.8W
At 8x 5A load
-25°C to 70°C
52x124x130mm
Without DIN rail
370g / 0.82lb
UL 61010-2-201
IEC 61010
IEC 62368 planned
1 / 20
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