PULS PISA11.CLASS2 Protection Module
- Model: PISA11.CLASS2
PULS PISA11.CLASS2 FEATURES
- One Input and Four Current-Controlled Outputs
- NEC Class 2 Compliant Outputs
- Ensures Sufficient Supply Voltage for Critical Loads even in the Event of a Fault
- Protects Small Cable Sizes against Overload
- Hassle-free Turn-on of Loads with Large Input Capacitors
- Wide Temperature Range between -25°C and +70°C
- On/Off Function of Outputs
- Compact Design, Width only 45mm
- Remote Monitoring and Control Functions
PULS PISA11.CLASS2 INTRODUCTION
This protection module fulfills two basic functions. First, it distributes the current of a large (non-NEC Class 2) power source to four NEC CLASS 2 output channels and therefore allows for a simpler wiring method and easier approval process of the entire machine. The second function is to permit only so much current on the outputs that the input voltage of this unit (which corresponds to the output voltage of the power supply) does not fall below 21V.
This ensures a safe and uninterrupted supply voltage for sensitive equipment, such as PLCs, controls, or sensors, when they are connected directly to the same power supply as the PISA module. Less critical loads that are not affected by short voltage interruptions or that could even be the cause of a fault on the 24V power supply are connected to one of the four NEC CLASS 2 output channels of the PISA module.
As an Authorized Distributor of PULS, Manufacturers Automation Inc. (ManuAuto) offers a wide variety of Industrial Automation and Communication products across North America, including Canada (Ontario, Toronto) and the US. Buy PULS PISA11.CLASS2 Protection Module online at a competitive price, with on-time delivery and fast shipping services. Our certified engineers are always available to support you.
You can also find the PISA11.401 and PISA11.410 models in the PULS Protection Modules Series.
PULS PISA11.CLASS2 CERTIFICATIONS

| PULS Electronic Circuit Breaker : Input Data | |
| Nominal Input Voltage | 24 VDC |
| Input Voltage Range | 18 to 30V |
| Input Current | At no load: typ. 43mA |
| Internal Current Consumption | - |
| Turn-on Voltage | typ. 21.4 VDC |
| PULS Electronic Circuit Breaker : Output Data | |
| Output Voltage | 24 to 28 V |
| Output Current | Output 1: 3.7A, Output 2: 3.7A, Output 3: 3.7A, Output 4: 3.7A |
| Current Limitation | min. 16.6A, typ. 19.9A, max. 23.6A |
| Output Leakage Current | typ. 0.4mA |
| Voltage Drop Per Channel | Per Output: typ. 92mV |
| Load Capacitance Capability | - |
| PULS Electronic Circuit Breaker : Efficiency And Power Losses | |
| Efficiency | - |
| Power Losses | No-load losses: typ. 1.0W, Losses at typical output loads: typ. 1.6W |
| PULS Electronic Circuit Breaker : Protection Features | |
| Overvoltage Protection | No |
| Over-Temperature Protection | No |
| Overload Protection | No |
| Reverse Polarity Protection | No |
| Penetration Protection | Yes: > 2.5mm in diameter |
| PULS Electronic Circuit Breaker : General | |
| ON/OFF / Reset Signal Input | Yes |
| LED Indicators | 1 green LED |
| MTBF | At 40°C: 220000h, At 25°C: 622000h |
| Relay Contacts | - |
| Connection Method | Screw terminals |
| PULS Electronic Circuit Breaker : Physical Characteristics | |
| Operating Temperature | -25° to 70°C |
| Storage Temperature | -40 to 85°C |
| Relative Humidity Range | 5 to 95% r.H |
| Housing | - |
| Dimensions | 45 mm x 75 mm x 91 mm |
| Weight | 120 g |
| Mounting Type | DIN rail |
| Output Derating | No |
| Altitude Range | 0 to 6000m |
| Standards and Certifications | WEEE, REACH, CCC, EU, ISA-71.04 G3, IEC 60068-2-60, Marine (DNV), Class I Div 2, IECEx, ATEX, UL 2367, UL 60950-1, IEC 60950-1, UL 508, IEC 60068-2-6, IEC 60068-2-27 |