Weidmüller 8556090000 General Purpose Relay SPDT 6A 230V - Equivalent & Substitute Parts

Part Overview

The Weidmüller 8556090000 is a general purpose relay with SPDT (Single Pole Double Throw) contact configuration, rated for 6A at 230VAC. This relay is designed for DIN rail mounting and features a lighted indicator with socket inclusion. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in ongoing applications.

Substiute Parts

8556090000

WeidmüllerIn Stock: 12178556090000 Datasheet

Current PartRFQ

1122950000

WeidmüllerIn Stock: 7811122950000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Weidmüller 8556090000 is determined by strict alignment of the following critical parameters:

• Mounting Type: DIN Rail (required match)
• Contact Form: SPDT (1 Form C) (required match)
• Coil Voltage: 230VAC (required match)
• Contact Rating (Current): 6 A (required match)
• Coil Type: Non Latching (required match)
• Termination Style: Spring Terminal (required match)
• Relay Type: General Purpose (required match)

The substitute part Weidmüller 1122950000 meets all critical substitution criteria. This part belongs to the active TERMSERIES product line and provides functional equivalence while offering enhanced operational specifications including extended temperature range, improved switching voltage capability, and additional protective features (RC Circuit).

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1122950000 is the direct functional equivalent for the obsolete 8556090000. Both parts maintain identical core electrical specifications: 230VAC coil voltage, 6A contact rating, SPDT contact configuration, and non-latching operation. Both are RoHS Compliant and REACH Unaffected, meeting current regulatory requirements.

The substitute part 1122950000 is classified as Active product status, ensuring continued availability and supply chain reliability. The substitute provides enhanced operational characteristics including extended operating temperature range (-40°C to 60°C versus -25°C to 50°C), dual voltage switching capability (250VAC and 250VDC), and integrated RC Circuit protection. These enhancements represent improvements over the original specification without compromising backward compatibility in standard general purpose relay applications.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1122950000 directly replace the 8556090000 in existing installations?

A: Yes. Both relays share identical mounting type (DIN Rail), coil voltage (230VAC), contact configuration (SPDT), current rating (6A), and termination style (Spring Terminal). The substitute part maintains functional equivalence for general purpose relay applications.

Q: What is the significance of the product status change from Obsolete to Active?

A: The 8556090000 is obsolete and no longer manufactured. The 1122950000 is an active product with ongoing production and supply availability, making it the appropriate choice for new procurement and system maintenance.

Q: Are there differences in contact material between these parts?

A: Yes. The 8556090000 uses Silver Tin Oxide (AgSnO) contact material, while the 1122950000 uses Silver Nickel (AgNi). Both materials are suitable for general purpose relay applications at the specified current and voltage ratings.

Q: Does the RC Circuit feature in the substitute part affect compatibility?

A: No. The RC Circuit is an additional protective feature that does not affect the relay's core switching function or electrical compatibility. This feature provides enhanced transient suppression.

Q: What is the difference in switching voltage capability?

A: The 8556090000 switches up to 250VAC maximum. The 1122950000 switches up to 250VAC or 250VDC maximum, providing expanded voltage range capability without affecting AC-only applications.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the 8556090000 and 1122950000 are RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.