PULS

Protection unit

DIMENSION series

PISA-B series

8-channel protection module (1input + 8 outputs)

common signaling rly. contact
NEC Class 2

18Vdc-30Vdc (24Vdc)
19.6Vdc (required input voltage for turning on the outputs)

screw-clamp connections

short-circuit protection (10ms shutdown time)
current limitation 5.7A - 50A

DIN rail mounting

W52mm x H124mm x D130mm

52 mm

Aluminium housing

-25...+70 °C

(turn-on delay of output) 750 ms

(no output load) 1 W
(8x3.75A output load) 10.8 W

Commercialized

PISAB8CL2B1

(Channel 1+2) 120mV / 0.12 V
(Channel 3+4+5+6+7+8) 135mV / 0.135 V

CE marking
REACH Directive
WEEE Directive
RoHS 2
IEC 61010
IEC 62368
NEC CLASS 2
UL 61010
UL 2367
VDMA 24364

Eight Current Controlled Outputs
NEC Class 2 Compliant
Adaptive Voltage-dependent Current Limitation for
Maximal Output Power According to NEC Class 2
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-8CL2-B1)
Digital Coded Signal Output for Tripped Channels
(PISA-B-8CL2-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
The PISA-B devices are DIN rail mountable eight channel protection modules with integrated electronic fuses for 24V systems. They distribute the current from 1 large power source to eight NEC Class 2 output circuits which results in reduced fire safety efforts and easier regulatory testing as well as approval processes for the end equipment. 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-8CL2-B1 is equipped with a common tripping signaling relay contact that reports tripped channels while the PISA-B-8CL2-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 moulded material on the front and of an Aluminium body which permits surrounding temperatures up to +70°C.