PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulspower.com 1 / 20
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.
ELECTRONIC FUSE
8X 24V, 2X 1-12A, 6X 1-10A
•
Eight Current Controlled Outputs
•
Adjustable Output Currents for Each Channel
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Selective Tripping of Overloaded Channels
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Compatible even with large Capacitive Loads
•
Output Currents Displayed Live on LED Matrix
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Remote Reset or Reset via Pushbuttons
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Common Signaling Relay Contact for Tripped
Channels (PISA-B-812-B1)
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Digital Coded Signal Output for Tripped Channels
(PISA-B-812-B4)
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Parameter Settings can be Locked by PIN-Code
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ON/OFF Feature for Each Individual Output
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Easy Wiring - Distribution Terminals for Negative Pole
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3 Year Warranty
GENERAL DESCRIPTION SHORT-FORM DATA
The PISA-B devices are DIN rail mountable
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.
Input voltage DC 24V -20%/+25%
Required input voltage
for turning-on of outputs
19.6Vdc
Input current 40A
Internal consumption 40mA PISA-B-812-B1
35mA PISA-B-812-B4
Adjustable
1/2/3/4/6/8/10/12A CH1 and CH2
Nominal output current
1/2/3/4/6/8/10A CH3 to CH8
40A Below +60°C ambientSum current all channels
30A At +70°C ambient
Derate between +60°C and +70°C
Current limitation
CH1-CH2 200% For 1A setting
150% For 2 - 8A settings
130% For 10 - 12A settings
CH3-CH8 50A
Tripping characteristics Slow or Fast Selectable
Tripping delay
CH1-CH2 2ms – 2s At short circuit
CH3-CH8 <10ms At short circuit
CH1-CH8 1.1s For slow tripping at 1.5x
nominal current
CH1-CH8 0.22s For fast tripping at 1.5x
nominal current
Max load capacitance capability
CH1-CH2 100mF Per channel
CH3-CH8 20mF Per channel
Voltage drop per channel
CH1-CH2 125mV For 10A load
CH3-CH8 165mV For 10A load
Standby losses 1W
Power losses 10.8W At 8x 5A load
Temperature range -25°C to 70°C
Size (w x h x d) 52x124x130mm Without DIN rail
Weight 370g / 0.82lb
ORDER NUMBERS MAIN APPROVALS
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
For details and a complete approval list, see chapter 20.
UL 2367 UL 61010-2-201 IEC 61010
IEC 62368 planned
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