ALE14F24 Equivalent & Substitute Parts

Part Overview

The ALE14F24 is a general purpose relay manufactured by Panasonic Electric Works, featuring a SPST-NO (1 Form A) contact configuration with a 24VDC coil. This through-hole mounted relay is rated for 16A at 277VAC maximum switching voltage and is designed for non-latching applications. The part is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications where the original component is no longer available from primary sources.

Substiute Parts

ALE14F24

Panasonic Electric WorksIn Stock: 953ALE14F24 Datasheet

Current PartRFQ

RZF1-1A4-L048

TE Connectivity Potter & Brumfield RelaysIn Stock: 1590RZF1-1A4-L048 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALE14F24 is determined by the following critical parameters that must be maintained or exceeded:

Primary Compatibility Criteria:

• Contact form: SPST-NO (1 Form A) configuration
• Contact current rating: minimum 16A
• Switching voltage: minimum 277VAC capability
• Mounting type: Through hole with PC pin termination
• Termination style: Quick Connect 0.187" (4.7mm) compatible
• Operating temperature range: -40°C ~ 85°C minimum

Secondary Considerations:

• Coil voltage: 24VDC (primary specification)
• Coil type: Non-latching operation
• Coil insulation: Class F minimum
• RoHS compliance status

The identified substitute RZF1-1A4-L048 meets all primary compatibility criteria. While the coil voltage differs (48VDC vs. 24VDC), this part is listed in the original component's substitute field, indicating engineering validation for cross-application use in systems where coil voltage adjustment is feasible or where the higher voltage rating provides system flexibility.

Parameter Comparison

Engineering Selection Recommendations

The RZF1-1A4-L048 is a valid substitute for the ALE14F24 based on matching contact specifications, mounting configuration, and termination compatibility. Both relays are obsolete products with RoHS compliance and Class F coil insulation.

Key Differences Requiring System Evaluation:

The RZF1-1A4-L048 operates at 48VDC coil voltage compared to the ALE14F24's 24VDC specification. This substitution is feasible only in applications where the control circuit can supply 48VDC or where a voltage converter is implemented. The substitute part offers superior switching voltage capability (400VAC vs. 277VAC) and lower coil current draw (11 mA vs. 16.7 mA), which may provide operational advantages in power-constrained applications.

Contact material differs between the two relays: the ALE14F24 uses Silver Tin Oxide (AgSnO) while the RZF1-1A4-L048 uses Silver Nickel (AgNi). Both materials are suitable for general purpose switching applications within the specified current and voltage ratings.

Both parts carry identical approval agencies (CSA, TUV, UR, VDE) and moisture sensitivity ratings (MSL 1 - Unlimited), ensuring equivalent environmental performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the RZF1-1A4-L048 be used as a direct replacement for the ALE14F24 without circuit modification?

A: Direct replacement is possible only if the control circuit supplies 48VDC. If the system provides 24VDC, a voltage converter or power supply modification is required. The mechanical and electrical contact specifications are compatible.

Q: What are the key compatibility factors when selecting a substitute?

A: The critical parameters are contact form (SPST-NO), current rating (16A minimum), switching voltage capability (277VAC minimum), mounting type (through hole), and termination style (PC pin, 0.187" quick connect). Operating temperature range and coil insulation class must also match or exceed the original specification.

Q: How do the contact materials differ between these relays?

A: The ALE14F24 uses Silver Tin Oxide (AgSnO) contacts while the RZF1-1A4-L048 uses Silver Nickel (AgNi) contacts. Both materials are suitable for 16A switching at the specified voltages. Silver Nickel contacts typically offer slightly different wear characteristics and may be preferred in certain industrial environments.

Q: Are there packaging differences between these parts?

A: The ALE14F24 is packaged with standard through-hole termination. The RZF1-1A4-L048 is supplied in tube packaging. Both use identical PC pin quick-connect termination (0.187" / 4.7mm), ensuring mechanical compatibility on PCB layouts.

Q: What is the impact of the different coil current specifications?

A: The RZF1-1A4-L048 draws 11 mA compared to the ALE14F24's 16.7 mA. This lower current requirement may reduce power dissipation and heat generation in the control circuit, which can be advantageous in applications with limited power supply capacity or thermal constraints.

Q: Can these relays be used interchangeably in AC switching applications?

A: Both relays are rated for AC switching. The RZF1-1A4-L048 has a higher maximum switching voltage (400VAC vs. 277VAC), making it suitable for a broader range of AC applications. Substitution is valid provided the coil voltage requirement is satisfied.