SIL3

Achieve SIL 3 with QUINT POWER

Use QUINT power supply and solutions for functional safety applications.

Phoenix Contact is expanding the limits of safety and availability! QUINT POWER now provides IEC 61508 SIL-rated power supply solutions to fulfill critical safety requirements. The strict safety requirements of these solutions are associated with a low probability that a system will fail to preform properly. We have designed a fully loaded SIL 3 power supply solution to meet rigorous SIL 3 safety regulations.

How reliable is your device?

How reliable is your device?

What is SIL and why is SIL important?

Safety Integrity Level (SIL) is a measure of safety system performance in terms of the probability of failure on demand. The SIL rating of a device reflects the degree of reliability in which the product has to fail safely. As the SIL increases, the safety level of the product increases, meaning the probability that the system will fail to perform properly decreases. Often used in the processing industry, SIL provides intricate safety regulations to ensure the avoidance of catastrophic accidents and errors that can be detrimental to the most stringent operations.

SIL 3 power supply solutions

Phoenix Contact QUINT POWER SIL solutions

Power supply (top), Redundancy module (bottom)

The overvoltage protection (OVP) circuitry built into the QUINT4-PS/1AC/24DC/20 (2904602) power supply and the QUINT4-S-ORING/12-24DC/1X40/+ (2907753) redundancy module have been certified to the electrical safety in accordance to IEC 61508 and multiple EMC standards.

The OVP circuitry build in the Phoenix Contact QUINT4-PS/1AC/24DC/20 (2904602) with the redundancy module QUINT4-S-ORING/12-24DC/1X40/+ (2907753) can be used to set up single or redundant bulk power system with a proven OVP. This system can be used in SIL 3 applications according to IEC 61508. The safety function is to limit the output voltage to 32 V DC. If the voltage rises above 32 V DC, the device will switch off, creating a safe state of no output voltage.

The following applications show how to use the Phoenix Contact QUINT4-PS/1AC/24DC/20 power supply and QUINT4-S-ORING/12-24DC/1X40/+ redundancy module to set up a:

  • Single SIL 2 power supply application for 20 A

  • Single SIL 3 power supply application for 20 A

  • Redundant SIL 3 power supply application for 20 A

  • Redundant SIL 3 power supply application for 40 A

SIL 2 power supply application

SIL 2

The OVP circuitry implemented in the QUINT4-PS/1AC/24DC/20 power supply fulfills SIL 2 requirements and can be used in SIL 2 power supply applications according to IEC 61508.

SIL 3 power supply application – 20 A

Standard SIL3

The combination of the QUINT4-PS/1AC/24DC/20 power supply and the QUINT4-ORING/12-24DC/1X40/+ redundancy module—where the redundancy module is used as a diagnostic—fulfills SIL requirements and can be used in standard SIL 3 power supply applications according to IEC 61508.

Critical SIL 3 power supply application – 20 A

Critical SIL 3  - 20 A

Creating a 20 A redundant system using a N+1 combination of the QUINT4-PS/1AC/24DC/20 power supply and QUINT4-ORING/12-24DC/1X40/+ redundancy module—where the redundancy module is used as a diagnostic—fulfills SIL 3 requirements and can be used in critical SIL 3 power supply application according to IEC 61508.

Critical SIL 3 power supply application – 40 A

Critical SIL 3 - 40 A

Creating a 40 A redundant system using a N+1 combination of the QUINT4-PS/1AC/24DC/20 power supply and QUINT4-ORING/12-24DC/1X40/+ redundancy module—where the redundancy module is used as a diagnostic—fulfills SIL 3 requirements and can be used in critical SIL 3 power supply application according to IEC 61508.

PHOENIX CONTACT Ltd

8240 Parkhill Drive
Milton, Ontario L9T 5V7
1-800-890-2820

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QUINT POWER – power supplies with maximum functionality

The fourth generation of the high-performance QUINT POWER power supplies ensures superior system availability by means of new functions.

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