S831/328 Toggle Switch 3PST 30A 125V Equivalent & Substitute Parts

Part Overview

The S831/328 is an active NKK Switches toggle switch featuring 3PST (three-pole, single-throw) circuit configuration rated for 30A at 125V AC and 30V DC. This panel-mount component utilizes screw terminal connections and a standard round actuator with low-temperature lubricant for reliable operation across -30°C to 70°C. The part is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating.

Identifying equivalent and substitute parts is necessary when managing inventory constraints, ensuring supply chain continuity, or standardizing component selections across production batches while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

S831/328

NKK SwitchesIn Stock: 723S831/328 Datasheet

Current PartRFQ

S831

NKK SwitchesIn Stock: 1261S831 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S831/328 is determined by strict equivalence across the following critical parameters:

• Circuit configuration (3PST)
• Current rating (30A AC/DC)
• Voltage ratings (125V AC, 30V DC)
• Mounting type (Panel Mount)
• Termination style (Screw Terminal)
• Panel cutout dimensions (Circular 12.50mm Dia)
• Bushing thread specification (M12 x 1)
• Actuator type and length (Standard Round, 22.00mm)
• RoHS compliance status (ROHS3 Compliant)
• Product status (Active)

The S831 base product number represents the same electrical and mechanical platform. Substitute parts must maintain identical performance across all electrical parameters and mechanical interfaces to ensure direct replacement without circuit redesign or panel modification.

Parameter Comparison

Engineering Selection Recommendations

Both the S831/328 and S831 are active products with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Selection between these parts should be based on application-specific operating temperature requirements.

The S831/328 supports the full operating range of -30°C to 70°C, making it suitable for applications requiring extended low-temperature performance. The S831 operates within -10°C to 70°C, which is appropriate for standard industrial and commercial environments where temperatures do not fall below -10°C.

Both parts share identical electrical ratings, mechanical interfaces, and termination specifications, ensuring functional equivalence within their respective temperature operating ranges. Packaging differences (S831/328 standard packaging versus S831 bulk packaging) do not affect component performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can S831 substitute for S831/328 in all applications?

A: Direct substitution is valid only when the application operating temperature remains within -10°C to 70°C. If the circuit operates below -10°C, the S831/328 is required to maintain the specified -30°C lower temperature limit.

Q: Are the electrical specifications identical between S831/328 and S831?

A: Yes. Both parts are rated for 30A at 125V AC and 30V DC with 3PST circuit configuration, 25,000 electrical life cycles, and identical mechanical interfaces.

Q: What is the difference between S831/328 and S831 packaging?

A: S831/328 uses standard packaging while S831 is supplied in bulk packaging. This distinction affects order quantities and handling but does not impact electrical or mechanical performance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both S831/328 and S831 are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1) and REACH unaffected status.

Q: Can these parts be used interchangeably in panel-mount applications?

A: Yes, provided the operating temperature range of the application falls within -10°C to 70°C. Both parts feature identical panel cutout dimensions (12.50mm circular), M12 x 1 bushing thread, and screw terminal connections.