PISA-M-406, 24 / 12 V, 6 A, 480 W Electronic Circuit Breaker
Installation Instruction

Doc. ID: PU-466.015.05-xxA (2024-06-19-JM2)

Symbols Explained
WARNING: Risk of serious injury or death
NOTE: Additional informationAction step

CCB

Channel Control Button

Positive result

Read this first!

English

Before operating this device, please read this manual thoroughly and retain this manual
for future reference. This device may only be installed and put into operation by qualified
personnel. If damage or malfunction should occur during operation, immediately turn poweroff and send device to the factory for inspection. The device does not contain serviceableparts. The information presented in this document is believed to be accurate and reliable
and may change without notice. For any clarifications the English translation will be used.

WARNING: Risk of electrical shock, fire, personal injury, or death.
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Turn power off before working on the device. Protect against inadvertent re-powering.
Do not open, modify or repair the device.
Use caution to prevent any foreign objects from entering the housing.
Do not use in wet locations or in areas where moisture or condensation can beexpected.
Do not touch during power-on and immediately after power-off. Hot surfaces may
cause burns.

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PULS GmbH, Elektrastr. 6, 81925 Munich+49 89 9278 0 www.pulspower.com

NOTE: Tips for optimal use
Consult the information in the technical data table.
For further information and configuration please refer to the datasheet.

Product Description
The PISA-M devices are miniature four-channel protection modules for 24 V and 12 Vsystems.

Intended Use

Install the device in an enclosure providing protection against electrical, mechanical and firehazards. Install the device onto a DIN rail according to EN 60715 with the input terminals on
top of the unit.
Use an appropriately sized 24 V or 12 V power supply, which can deliver the peak current
required to trip the load channels. If peak currents are too low, the PISA-M will trip channels
in case of voltage drops to protect the power supply from overload.
Make sure that the wiring is correct by following all local and national codes. Useappropriate copper cables that are designed for a minimum operating temperature of +60°C for ambient temperatures up to +45 °C, +75 °C for ambient temperatures up to +60 °C
and +90 °C for ambient temperatures up to +70 °C. Ensure that all strands of a stranded wire
enter the terminal connection.
The device is designed for pollution degree 2 areas in controlled environments. No
condensation or frost is allowed. The enclosure of the device provides a degree of ingress
protection of IP20. The housing does not provide protection against spilled liquids.
The isolation of the devices is designed to withstand impulse voltages up to 1.5 kV according
to IEC 60664-1. The input can be powered from a regulated power supply or a similar DC
source.
The input must be powered from a PELV or SELV source in order to maintain a SELV or PELV
output. Check for correct input polarity. The device will not operate when the voltage isreversed.
A disconnecting means shall be provided for the input of the device.
The device is designed as “Class of Protection III” equipment according to IEC 61140.
The device is designed for convection cooling and does not require an external fan. Do notobstruct airflow and do not cover ventilation grid!
Keep the following minimum installation clearances: 40 mm on top, 30 mm on the bottom,
0 mm left and right side. Increase the 0 mm to 15 mm in case the adjacent device is a heatsource. Between multiple PISA-M modules no clearance is needed. The device is designed for
altitudes up to 5000 m.
The maximum surrounding air temperature is +70 °C. The operational temperature is thesame as the ambient or surrounding air temperature and is defined 3 cm below the device.
The device is designed to operate in areas between 5 % and 95 % relative humidity.

Functional Description
The output can supply any kind of loads, including inductive and capacitive loads. Themaximum size of capacitive loads is specified in the “Technical Data” table. Larger load
capacitors might result in an unintended turn-off of the channel.
Do not apply return voltages from the load to the output terminals higher than 30 V.
Do not parallel outputs for higher output currents.
Do not connect outputs in a series connection for higher output voltages.
Do not connect batteries for charging purposes to the output of the device.
Output channels can be switched on and off separately by pushing the corresponding
control button for 50 ms or 1 s, depending on selected button reaction style. A channel thatis switched off is indicated by the red LED.
If the total current is larger than 20 A for 2 s or more, the device turns off the output
channels, starting with overloaded channels, then continuing with CH4 to CH1 until the total
output current is 20 A or less. The tripping current can be set individually for all channels.
The tripping characteristic can be set as a common parameter for all channels.

This device is designed for installation in an enclosure and is intended for commercial use,such as in industrial control, process control, monitoring and measurement equipment or thelike. Do not use this device in equipment, where malfunctioning may cause severe personal
injury or threaten human life without additional appropriate safety devices, that are suitedfor the end-application. If this device is used in a manner outside of its specification, theprotection provided by the device may be impaired.

All parameters are specified at 24 Vdc, 4 x 5 A, +25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
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PISA-M-406, 24 / 12 V, 6 A, 480 W Electronic Circuit Breaker
Vor Inbetriebnahme lesen!

DeutschBitte lesen Sie diese Warnungen und Hinweise sorgfältig durch, bevor Sie das Gerät inBetrieb nehmen. Bewahren Sie die Anleitung zum Nachlesen auf. Das Gerät darf nur durch
fachkundiges und qualifiziertes Personal installiert werden. Bei Funktionsstörungen oderBeschädigungen schalten Sie sofort die Versorgungsspannung ab und senden das Gerät zurÜberprüfung ins Werk. Das Gerät beinhaltet keine Servicebauteile. Die angegebenen Daten
dienen allein der Produktbeschreibung und sind nicht als zugesicherte Eigenschaften imRechtssinne aufzufassen. Im Zweifelsfall gilt der englische Text.

WARNUNG: Missachtung nachfolgender Punkte kann einen elektrischen Schlag,

ADVERTENCIA: Riesgo de descarga eléctrica, incendio, accidente grave o muerte.
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Brände, schwere Unfälle oder Tod zur Folge haben.
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■Schalten Sie die Eingangsspannung vor Installations-, Wartungs- oderÄnderungsarbeiten ab und sichern Sie diese gegen unbeabsichtigtes
Wiedereinschalten.
Führen Sie keine Änderungen oder Reparaturversuche am Gerät durch. Gerät nichtöffnen.
Verhindern Sie das Eindringen von Fremdkörpern, wie z.B. Büroklammern undMetallteilen.
Betreiben Sie das Gerät nicht in feuchter Umgebung oder in einer Umgebung, bei dermit Betauung oder Kondensation zu rechnen ist.
Gehäuse nicht während des Betriebes oder kurz nach dem Abschalten berühren. Heiße
Oberflächen können Verletzungen verursachen.

A lire avant mise sous tension!

FrancaisVeuillez lire ces instructions de montage et d'entretien avant de mettre l'alimentation
sous tension. Conservez ce manuel qui vous sera toujours utile. Cette alimentation nedoit être installée que par du personnel qualifié et compétent. En cas de dommage ou
dysfonctionnement, coupez immédiatement la tension d’alimentation et retournez l’appareil
à l’usine pour vérification. ! L’alimentation ne contient pas de pièces échangeables Lesdonnées indiquées dans ce document servent uniquement à donner une description duproduit et n'ont aucune valeur juridique. En cas de divergences, le texte anglais fait foi.

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Mettre l’alimentation hors tension avant toute intervention sur celle-ci et s'assurer qu'iln'y a pas risque de redémarrage.
Ne pas ouvrir, modifier ou réparer l'alimentation.
Veiller à ce qu'aucun objet ne rentre en contact avec l'intérieur de l'alimentation(trombones, pièces métalliques).
Ne pas faire fonctionner l'appareil dans un environnement humide ou dans unenvironnement où il peut y avoir de la condensation.
Ne pas toucher le carter pendant le fonctionnement ou directement après la mise horstension. Surface chaude risquant d’entraîner des blessures.

Lea primero!

Portuguès

Recomendamos a leitura cuidadosa das seguintes advertências e observações, antes decolocar em funcionamento a fonte de alimentação. Guarde as Instruções para futura
consulta, em casos de dúvida. A fonte de alimentação deverá ser instalada apenas por
profissionais da área, tecnicamente qualificados. Se por acaso, durante a utilização ocorrer
algum defeito de funcionamento ou dano, desligue imediatamente a tensão de alimentação.
Em ambos os casos, será necessária uma verificação na Fábrica! Os dados mencionados têmcomo finalidade somente a descrição do produto, e não devem ser interpretados como
propriedades garantidas no sentido jurídico. Em caso de duvidas aplica-se o texto em inglês.

AVISO: A não observância ou o incumprimento dos pontos a seguir mencionados,poderá causar uma descarga elétrica, incêndios, acidentes graves ou morte.
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Antes de trabalhos de instalação, manutenção ou modificação, desligue a tensão dealimentação, protegendo-a contra uma nova ligação involuntária.
Não efectue nenhuma modificação ou tentativa de reparação no aparelho. Quando
necessário contacte o seu distribuidor. Não abra o aparelho.
Proteger a fonte de alimentação contra a introdução inadvertida de corpos metálicos,como por ex., clipes ou outras peças de metal.
Não usar o aparelho em ambientes húmidos. Não usar o aparelho em ambientes
propensos a condensações.
Não tocar enquanto estiver em funcionamento, nem após a desligar. A superficie
poderá estar quente e provocar lesões.

Leggere prima questa parte!

ItalianoPrima di collegare il sistema di alimentazione elettrica si prega di leggere attentamente
le seguenti avvertenze. Conservare le istruzioni per la consultazione futura. Il sistema dialimentazione elettrica deve essere installato solo da personale competente e qualificato.
Se durante il funzionamento si verificano anomalie o guasti, scollegare immediatamente latensione di alimentazione. In entrambi i casi è necessario far controllare l'apparecchio dalproduttore! I dati sono indicati solo a scopo descrittivo del prodotto e non vanno consideraticome caratteristiche garantite dell'apparecchio. In caso di differenze o problemi è valido iltesto inglese.

Espanol

Conserve este manual como referencia para futuras consultas. La fuente de alimentación
solo puede ser instalada y puesta en funcionamiento por personal cualificado. Por favor lea
detenidamente este manual antes de conectar la fuente de alimentación. Si se produce unfallo o mal funcionamiento durante la operación, desconecte inmediatamente la tensión dealimentación. En ambos casos, el equipo debe ser inspeccionado en fábrica. La información
presentada en este documento es exacta y fiable en cuanto a la descripción del producto ypuede cambiar sin aviso. En casa de duda, prevalece el texto inglés.

Desconectar la tensión de red antes de trabajar en la fuente de alimentación. Evite una
posible reconexión involuntaria.
No realizar ninguna modificación o reparación de la unidad. No abrir la unidad.
Evitar la introducción en la carcasa de objetos extraños.
No usar el equipo en ambientes húmedos. No operar el equipo en ambientes donde seespere la formación de rocío o condensación.
No tocar durante el funcionamiento ni inmediatamente después del apagado. El calor
de la superficie puede causar quemaduras graves.

Leia primeiro!

■AVERTISSEMENT: Risque de blessure grave ou de mort par choc électrique

PULS GmbH, Elektrastr. 6, 81925 Munich+49 89 9278 0 www.pulspower.com

AVVERTENZA: Il mancato rispetto delle seguenti norme può provocare folgorazione
elettrica, incendi, gravi incidenti e perfino la morte.
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Prima di eseguire interventi di installazione, di manutenzione o di modifica scollegare
la tensione di rete ed adottare tutti i provvedimenti necessari per impedirne il
ricollegamento non intenzionale.
Non tentare di aprire, di modificare o di riparare da soli l'apparecchio.
Impedire la penetrazione di corpi estranei nell'apparecchio, ad esempio fermagli o altri
oggetti metallici.
Non far funzionare l'apparecchio in un ambiente umido. Non far funzionare
l'apparecchio in un ambiente soggetto alla formazione di condensa o di rugiada.
Non toccare quando acceso e subito dopo lo spegnimento. La superficie calda puòcausare scottature.

All parameters are specified at 24 Vdc, 4 x 5 A, +25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
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PULS GmbH, Elektrastr. 6, 81925 Munich+49 89 9278 0 www.pulspower.com

PISA-M-406, 24 / 12 V, 6 A, 480 W Electronic Circuit Breaker
EN Installation Manual for ElectriciansTerminals and Wiring≥ 0 mm≥ 0 mmFront Side and User Elements

40 mm

SolidWiremm2

Stranded AWG
Wiremm2

Max. Ømm

Wire
Strip.
Lengthmm

Input

Push-in terminals

≤ 2.5

≤ 2.5

122.5

10

OutputPush-in terminals

≤ 2.5

≤ 2.5

122.5

10Signal

Push-in terminals

≤ 1.5

≤ 1.5

160.75

10

Channel Status LEDs
GreenYellow
Red
Red (flashing)
Red (double-flashing)

PISA-M

30 mm

ALED OFFFor other blinking codes, see user manual.

Mounting Instructions

Input Terminals
Identical poles are internally connected.
1.1(+) Positive input pole1.2(-) Negative input (return) pole1.3(-) Negative input (return) pole

BCi(+)(+)(+)(+)

60715, see Fig. 1-1.
Turn off power source before installation.

Channel 1 positive output pole
Channel 2 positive output pole
Channel 3 positive output pole
Channel 4 positive output pole

Control Signal Input
3.1
3.2(+) Signal input positive pole(-) Signal input negative (return) pole Connect the cables to output terminal B.
 Connect the cables to input terminal A.
 Connect the cables to signal terminals C and D.
Warning: Turn off power source before
demounting.

 Remove the cables at input terminal A.
 Remove the cables at output terminal B.
 Remove the cables at signal terminals C and D.
 Insert a screwdriver into the lower tab and press

Status Signal Output
3.3
3.4(+) Signal output positive pole(-) Signal output negative (return) pole

Signal output can be set to several operation modes.

Ethe tab down to unlock, see Fig. 1-2.

Channel Control Buttons (CCB)

Fig. 1-2: DemountingPress of button combinations to enter configuration modes.

F

Channel Status LEDsG

QR Code for direct access to documentation

Fig. 1-1: Mounting

Demounting Instructions

Signal input can be used to send reset signal (1 s active) or for data
communication using Digital Coded Interface.

D

Pay attention to ambient conditions andinstallation clearances.

 Install the device onto a DIN rail according to EN

Output Terminals
2.1
2.2
2.3
2.4

Channel ON
Channel overload – prewarning before channel is triggered
Channel turned OFF (manually or remotely)
Channel tripped due to overload of this channel
Channel tripped due to device overload protection (total outputcurrent > 20 A for > 2 s) or power supply protection mode activatedDevice not poweredShow status of each output channel.

All parameters are specified at 24 Vdc, 4 x 5 A, +25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
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PULS GmbH, Elektrastr. 6, 81925 Munich+49 89 9278 0 www.pulspower.com

PISA-M-406, 24 / 12 V, 6 A, 480 W Electronic Circuit Breaker
EN Installation Manual for Electricians

User Configurable Settings
iFor detailed configuration hints, see PISA-M user manual.

Turn channels ON or OFF
Factory setting: All output channels ON
 Press of single CCB to switch selected channel ON/OFF .
Required duration of button press can be configured.

Reset tripped channel

 Press of single CCB > 1 s to reset a tripped channel manually.

Communication Modes••••

Tripping Alarm
Channel Off Alarm
OK Signal
DCI

Alarm if channel(s) tripped
Alarm if channel(s) switched off or tripped
OK signal if all channels onDigital Coded Interface

Technical Data
Input voltageSelect Tripping Characteristic
Factory setting: Fast tripping characteristic
 Press CCB1 and CCB3 simultaneously for 50 ms.

LEDs 1 to 4 indicate present setting with a running light:•Fast running light: Fast tripping characteristic•
Slow running light: Slow tripping characteristic

 Press CCB1 and CCB3 simultaneously for 50 ms within 4 s to toggle tripping
characteristic.
LEDs 1 to 4 indicate the updated setting with the running light.

 Press any button (except CCB1 and CCB3 simultaneously) to exit setting mode.
iInput current
Internal consumption
Output current tripping
setpoint
Sum current all channels

DC 24 VDC 12 V
20 A

- 20 % / + 25 %- 20 % / + 25 %max.

30 mA at 24 V
20 mA at 12 V
6A

per channel

20 Amax.

Tripping characteristics

slow or fast

selectable

Tripping delay< 2 ms0.22 sat short circuit
for fast tripping at 1.5 x tripping
setpoint
at short circuit
for slow tripping at 1.5 x tripping
setpoint

Device will exit setting mode automatically after 4 s inactivity.

< 10 ms
1.1 s
Capacitance load

40 mF, at 8 A, 24 V
resistive load, slow
trippingEfficiency

99 % at 24 V
98 % at 12 VPower losses

3.5 W at 24 V
3.0 W at 12 V

Standby losses

0.7 W at 24 V
0.25 W at 12 V

Temperature Range-25 °C to + 70 °C

Size (W x H x D)
Weight22.5 x 104 x 98 mm
100 g

All parameters are specified at 24 Vdc, 4 x 5 A, +25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
4/4max., per channel

all channels with 5 A load