Omron T4012-011TM-SC1 Equivalent & Substitute Parts

Part Overview

The Omron T4012-011TM-SC1 is a non-locking interlock switch with DPST-NO/NC circuit configuration, rated for 4A at 230VAC or 24VDC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component procurement. The T4012 series has been superseded by newer product lines while maintaining similar electrical and mechanical specifications across compatible models.

Substiute Parts

T4012-011TM-SC1

Omron Automation and SafetyIn Stock: 815T4012-011TM-SC1 Datasheet

Current PartRFQ

D4NS-4AD-NPT

Omron Automation and SafetyIn Stock: 963D4NS-4AD-NPT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Omron D4NS-4AD-NPT qualifies as a functional substitute based on the following alignment of critical parameters:

Matching Electrical Characteristics:

• Circuit configuration: DPST-NO/NC (identical)
• Actuator type: Panel Disconnect (identical)
• Termination style: Screw Terminal (identical)
• Ingress protection: IP67 - Dust Tight, Waterproof (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

Mechanical Compatibility:

• Conduit thread size: M20 (compatible; original specifies M20 x3)
• Non-locking type: Both models are non-locking interlock switches

Regulatory Compliance:

• Both parts carry CE and cULus certifications
• D4NS-4AD-NPT includes additional certifications (CCC, TUV)

Operational Differences:

• D4NS-4AD-NPT current rating: 3A (AC) versus T4012-011TM-SC1 rating of 4A (AC/DC)
• D4NS-4AD-NPT operating temperature: -30°C ~ 70°C versus T4012-011TM-SC1 range of -20°C ~ 80°C
• D4NS-4AD-NPT holding force: 6kgf versus T4012-011TM-SC1 holding force of 3kgf
• D4NS-4AD-NPT voltage rating: 240VAC versus T4012-011TM-SC1 rating of 230VAC, 24VDC

Parameter Comparison

Engineering Selection Recommendations

The D4NS-4AD-NPT is an active product with expanded regulatory certifications (CCC, TUV) compared to the obsolete T4012-011TM-SC1. Selection of the D4NS-4AD-NPT requires verification that the following parameter differences are acceptable for the intended application:

• Current rating reduction from 4A to 3A (AC only, not DC)
• Voltage rating change from 230VAC/24VDC to 240VAC
• Operating temperature range narrowing from -20°C ~ 80°C to -30°C ~ 70°C
• Increased holding force from 3kgf to 6kgf

The D4NS-4AD-NPT maintains identical circuit configuration, actuator type, termination style, and ingress protection rating. Both components carry CE and cULus certifications, with the D4NS-4AD-NPT providing additional compliance documentation through CCC and TUV approvals.

Frequently Asked Questions (FAQ)

Q: Can the D4NS-4AD-NPT directly replace the T4012-011TM-SC1?

A: Direct replacement is possible only if the application operates within the D4NS-4AD-NPT specifications. The substitute part has a lower current rating (3A AC versus 4A AC/DC), operates at 240VAC (not 24VDC), and has a narrower temperature range. Physical mounting compatibility exists due to matching M20 conduit thread sizes and identical panel disconnect actuator configuration.

Q: What are the key electrical differences between these parts?

A: The T4012-011TM-SC1 supports 4A at both 230VAC and 24VDC. The D4NS-4AD-NPT supports 3A at 240VAC only, with no DC rating. Both maintain DPST-NO/NC circuit configuration and identical switching logic.

Q: Are the mechanical dimensions compatible?

A: Both parts use M20 conduit thread sizing and panel disconnect actuators. The T4012-011TM-SC1 specifies M20 x3 threading, while the D4NS-4AD-NPT specifies M20. Mechanical mounting compatibility exists, though thread pitch differences should be verified for the specific installation.

Q: What certifications does each part carry?

A: The T4012-011TM-SC1 carries CE and cULus certifications. The D4NS-4AD-NPT carries CCC, CE, cULus, and TUV certifications, providing broader regulatory coverage.

Q: How do the holding forces compare?

A: The T4012-011TM-SC1 has a holding force of 3kgf, while the D4NS-4AD-NPT has a holding force of 6kgf. The higher holding force in the substitute part may affect actuator feel and mechanical engagement characteristics.

Q: What is the packaging difference?

A: The T4012-011TM-SC1 is supplied with standard packaging. The D4NS-4AD-NPT is supplied in bulk packaging, which may affect procurement quantities and handling procedures.