SI-LM40MKHD Equivalent & Substitute Parts

Part Overview

The SI-LM40MKHD is a non-locking interlock switch manufactured by Banner Engineering Corporation, configured as a DPST (Double Pole Single Throw) circuit with NO/NC (Normally Open/Normally Closed) contacts. This panel disconnect actuator is rated for 10A AC at 110VAC and 6A DC at 24VDC operation, with IP65 ingress protection suitable for dust-tight and water-resistant applications. The product is classified as obsolete, making identification of equivalent active alternatives necessary for ongoing procurement and system maintenance.

Substiute Parts

SI-LM40MKHD

Banner Engineering CorporationIn Stock: 855SI-LM40MKHD Datasheet

Current PartRFQ

SI-LS83SRAD

Banner Engineering CorporationIn Stock: 1122SI-LS83SRAD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SI-LS83SRAD qualifies as a functional equivalent to the SI-LM40MKHD based on the following critical parameters that determine substitution compatibility:

Electrical Equivalence: Both parts maintain identical current ratings (10A AC, 6A DC) and voltage ratings (110VAC, 24VDC), ensuring compatible operation within the same electrical circuits and load conditions.

Functional Equivalence: Both are non-locking interlock switches with DPST-NO/NC circuit configuration and panel disconnect actuator type, providing identical switching functionality and control logic.

Environmental Compliance: Both parts share identical operating temperature range (-30°C to 80°C), IP65 ingress protection rating, and approval certifications (CE, CSA, UL), confirming suitability for equivalent environmental and regulatory applications.

Termination Compatibility: Both utilize screw terminal termination style, allowing direct connection without adapter requirements.

Regulatory Compliance: Both are ROHS3 compliant and REACH unaffected, meeting identical environmental and hazardous substance restrictions.

Mechanical Difference: The SI-LS83SRAD features M16 conduit thread size compared to the M20 thread size of the SI-LM40MKHD. This represents a mechanical variation that may require panel modification or adapter consideration during installation.

Parameter Comparison

Engineering Selection Recommendations

The SI-LS83SRAD is the designated equivalent substitute for the obsolete SI-LM40MKHD. Selection of the SI-LS83SRAD is supported by:

Product Status: The SI-LS83SRAD maintains active product status with current manufacturing and availability, whereas the SI-LM40MKHD is obsolete. This transition ensures long-term supply chain continuity and access to current manufacturing batches.

Electrical and Functional Equivalence: Identical electrical ratings, circuit configuration, and operational characteristics ensure direct functional replacement without circuit redesign or load recalculation.

Regulatory and Compliance Alignment: Both parts carry identical CE, CSA, and UL certifications, ROHS3 compliance, and REACH status, confirming equivalent regulatory acceptance across all jurisdictions.

Installation Consideration: The conduit thread size difference (M16 versus M20) requires evaluation of existing panel mounting provisions. If the installation utilizes a fixed M20 mounting hole, mechanical adaptation or panel modification is necessary. If the application allows flexible mounting, the M16 thread size of the SI-LS83SRAD presents no functional limitation.

Frequently Asked Questions (FAQ)

Q: Can the SI-LS83SRAD directly replace the SI-LM40MKHD without circuit modification?

A: Yes, from an electrical and functional perspective. Both parts share identical current ratings, voltage ratings, circuit configuration, and control logic. No circuit redesign is required. However, the conduit thread size difference (M16 versus M20) may require mechanical panel adaptation depending on existing mounting provisions.

Q: Are the approval certifications identical between these two parts?

A: Yes. Both the SI-LM40MKHD and SI-LS83SRAD carry CE, CSA, and UL certifications, confirming equivalent regulatory acceptance. Both are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the M20 to M16 conduit thread size difference?

A: The conduit thread size determines the physical mounting interface at the panel. M20 is larger than M16. If your installation uses a fixed M20 mounting hole, the SI-LS83SRAD (M16) will require a mechanical adapter or panel modification. If mounting flexibility exists, this difference presents no functional impact on switch operation.

Q: Why is the SI-LM40MKHD classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SI-LS83SRAD represents the active equivalent, ensuring continued availability and access to current manufacturing standards.

Q: Are the operating temperature ranges identical?

A: Yes. Both parts operate across the identical temperature range of -30°C to 80°C, confirming equivalent thermal performance and environmental suitability.

Q: What is the difference in packaging between these parts?

A: The SI-LM40MKHD packaging is listed as standard, while the SI-LS83SRAD is supplied in bulk packaging. This affects order quantities and handling but does not impact electrical or functional performance.