XMCO-323EBBC Relay Contactor Equivalent & Substitute Parts

Part Overview

The XMCO-323EBBC is a 3PST relay contactor manufactured by American Zettler, rated for 32A at 24VAC with a maximum switching voltage of 600VAC. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain system functionality and ensure continued availability for new designs and field replacements.

Substiute Parts

XMCO-323EBBC

American ZettlerIn Stock: 997XMCO-323EBBC Datasheet

Current PartRFQ

XMC0-403EC

American ZettlerIn Stock: 1151XMC0-403EC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XMC0-403EC qualifies as a direct substitute for the XMCO-323EBBC based on the following critical parameters:

Matching Parameters:

• Coil voltage: 24VAC
• Contact form: 3PST-NO (3 Form A)
• Switching voltage: 600VAC maximum
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Operating temperature range: -25°C ~ 70°C
• Must operate voltage: 19.2 VAC
• Must release voltage: 4.8 VAC
• Contact material: Silver Tin Oxide (AgSnO)
• Moisture sensitivity level: 1 (Unlimited)
• Manufacturer: American Zettler
• Series: XMC0

Distinguishing Parameter:

• Contact rating: XMC0-403EC is rated for 40A, exceeding the 32A requirement of XMCO-323EBBC

The higher current rating of the substitute part provides enhanced capacity while maintaining full compatibility across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The XMC0-403EC is the direct substitute for the obsolete XMCO-323EBBC. Selection of this part is based on the following factors:

Product Status: The XMCO-323EBBC is obsolete, while the XMC0-403EC maintains active status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: All critical electrical parameters are identical, including coil voltage, contact form, switching voltage, and operating voltage thresholds. The 40A current rating of the substitute exceeds the 32A requirement, providing operational margin without compromising performance.

Mechanical Compatibility: Mounting type, termination style, and physical form factor are identical, enabling direct installation without mechanical redesign.

Compliance: The XMC0-403EC carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Both parts share identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the XMC0-403EC directly replace the XMCO-323EBBC in existing applications?

A: Yes. The XMC0-403EC is electrically and mechanically compatible with the XMCO-323EBBC across all specified parameters. The higher 40A current rating does not create incompatibility; it provides additional capacity margin.

Q: What is the significance of the higher 40A rating on the XMC0-403EC?

A: The 40A rating indicates the maximum continuous current the substitute can safely switch. Since the original application requires only 32A, the substitute operates within its rated capacity with additional headroom, enhancing reliability and component longevity.

Q: Are the coil operating characteristics identical between these parts?

A: Yes. Both parts operate at 24VAC with identical must-operate voltage (19.2 VAC) and must-release voltage (4.8 VAC) specifications, ensuring equivalent control circuit behavior.

Q: Does the packaging difference affect substitution?

A: The XMCO-323EBBC uses standard packaging while the XMC0-403EC is supplied in trays. This difference affects inventory handling and component presentation but does not impact electrical or mechanical performance in the application.

Q: Are there compliance differences between the two parts?

A: The XMC0-403EC includes ROHS3 compliance and REACH unaffected status documentation. Both parts carry identical ECCN and HTSUS classifications, suitable for equivalent regulatory and export compliance purposes.

Q: What contact material is used in both parts?

A: Both the XMCO-323EBBC and XMC0-403EC use Silver Tin Oxide (AgSnO) contact material, ensuring identical electrical performance and switching characteristics.