G9SB-2002-A Safety Relay Equivalent & Substitute Parts

Part Overview

The Omron G9SB-2002-A is a DPST safety relay rated for 5A at 24VAC/DC with DIN rail mounting and screw terminal connections. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts to maintain system functionality and ensure continued availability for new installations and replacements.

Substiute Parts

G9SB-2002-A

Omron Automation and SafetyIn Stock: 802G9SB-2002-A Datasheet

Current PartRFQ

G9SB-2002-A AC/DC24

Omron Automation and SafetyIn Stock: 1237G9SB-2002-A AC/DC24 Datasheet

DirectRFQ

2963718

Phoenix ContactIn Stock: 8212963718 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters:

• Coil voltage: 24VAC/DC
• Contact configuration: DPST-NO (2 Form A)
• Mounting interface: DIN Rail
• Termination method: Screw Terminal
• Switching voltage capability: minimum 250VAC, 30VDC
• Contact current rating: minimum 5A
• Operating temperature range: must encompass or match the original specification

The G9SB-2002-A AC/DC24 is a direct equivalent from the same manufacturer series. The Phoenix Contact 2963718 is classified as a similar substitute due to higher current rating (6A) and enhanced switching voltage specification (250VDC vs. 30VDC), which provides superior performance margins within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement: The G9SB-2002-A AC/DC24 is the primary substitute. It maintains identical electrical specifications and mechanical form factor while offering active product status and ROHS3 compliance. This part is recommended for applications requiring exact parameter matching and continuity with the original Omron G9SB series.

Alternative Substitute: The Phoenix Contact 2963718 provides functional equivalence with enhanced performance characteristics. The 6A current rating and 250VDC switching voltage capability exceed the original specification, offering improved operational margins. The 20ms operate time is faster than the original 30ms specification. This part is suitable for applications where higher performance margins are acceptable and cross-manufacturer sourcing is permitted. Both substitute parts maintain ROHS3 and REACH compliance status.

Frequently Asked Questions (FAQ)

Q: Can the G9SB-2002-A AC/DC24 be used as a direct replacement for the obsolete G9SB-2002-A?

A: Yes. The G9SB-2002-A AC/DC24 maintains identical coil voltage, contact configuration, current rating, switching voltage, mounting type, and termination style. It is the direct equivalent within the Omron G9SB series.

Q: What are the key differences between the Omron G9SB-2002-A AC/DC24 and the Phoenix Contact 2963718?

A: Both parts share the same coil voltage, contact form, mounting type, and termination style. The Phoenix Contact 2963718 provides a higher current rating (6A vs. 5A), enhanced DC switching voltage capability (250VDC vs. 30VDC), and faster operate time (20ms vs. 30ms). The operating temperature range of the Phoenix Contact part is -20°C to 55°C, compared to -25°C to 55°C for the Omron part.

Q: Are both substitute parts RoHS and REACH compliant?

A: Yes. Both the G9SB-2002-A AC/DC24 and the Phoenix Contact 2963718 are ROHS3 compliant and REACH affected.

Q: Which substitute part should be selected for a new design?

A: Selection depends on application requirements. For designs requiring exact parameter matching and Omron series continuity, use the G9SB-2002-A AC/DC24. For applications where higher current capacity and DC switching voltage are beneficial, the Phoenix Contact 2963718 is suitable.

Q: Is the Phoenix Contact 2963718 compatible with existing G9SB-2002-A installations?

A: Mechanical and electrical compatibility is confirmed through matching coil voltage, contact configuration, mounting interface, and termination method. The higher performance ratings of the Phoenix Contact part do not create incompatibility with existing circuit designs rated for the original 5A, 30VDC specification.