HP3-M-AC6V Equivalent & Substitute Parts

Part Overview

The HP3-M-AC6V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with 10A contact rating and 6VAC coil voltage. This relay is designed for chassis mount applications with quick connect termination. The product is currently obsolete, making identification of functionally equivalent substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

HP3-M-AC6V

Panasonic Electric WorksIn Stock: 699HP3-M-AC6V Datasheet

Current PartRFQ

KUP-14A55-6

TE Connectivity Potter & Brumfield RelaysIn Stock: 848KUP-14A55-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HP3-M-AC6V is determined by strict equivalence across the following critical parameters:

• Coil Voltage: Must be 6VAC to ensure direct compatibility with existing control circuits
• Contact Form: Must be 3PDT (3 Form C) to maintain identical switching functionality
• Contact Rating: Must be rated for minimum 10A to handle the same load currents
• Mounting Type: Must be chassis mount with quick connect 0.187" (4.7mm) termination to fit existing mechanical installations
• Operating Temperature Range: Must encompass or exceed the original -50°C ~ 40°C specification

The KUP-14A55-6 from TE Connectivity Potter & Brumfield Relays meets all these critical substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The KUP-14A55-6 is a direct functional substitute for the obsolete HP3-M-AC6V. Both relays share identical coil voltage, contact configuration, current rating, and mechanical mounting specifications. The KUP-14A55-6 offers the advantage of active product status, ensuring ongoing availability and supply chain continuity.

The KUP-14A55-6 demonstrates improved switching performance with faster operate and release times (15 ms and 10 ms respectively versus 30 ms for both parameters on the original). The substitute operates across a slightly wider temperature range (-45°C ~ 45°C versus -50°C ~ 40°C), providing enhanced thermal flexibility. The lower coil current requirement (460 mA versus 520 mA) reduces power consumption in the control circuit.

The KUP-14A55-6 carries ROHS3 compliance, supporting modern regulatory requirements. Both relays maintain unlimited moisture sensitivity level (MSL 1) classification.

Frequently Asked Questions (FAQ)

Q: Can the KUP-14A55-6 directly replace the HP3-M-AC6V in existing installations?

A: Yes. Both relays share identical coil voltage (6VAC), contact form (3PDT), current rating (10A), mounting type (chassis mount), and termination style (quick connect 0.187"). Physical and electrical compatibility is established across all critical parameters.

Q: What are the differences in switching performance between these relays?

A: The KUP-14A55-6 operates faster, with 15 ms operate time and 10 ms release time compared to 30 ms for both parameters on the HP3-M-AC6V. This faster response may be advantageous in time-sensitive control applications but does not affect basic substitution compatibility.

Q: Are there differences in contact material that affect substitution?

A: The HP3-M-AC6V uses silver (Ag) contacts while the KUP-14A55-6 uses silver cadmium oxide (AgCdO) contacts. Both materials are suitable for general purpose relay applications at the specified 10A rating and 250VAC switching voltage. Contact material selection does not prevent substitution.

Q: What is the impact of the lower coil current in the KUP-14A55-6?

A: The KUP-14A55-6 requires 460 mA coil current versus 520 mA for the HP3-M-AC6V. This 60 mA reduction decreases power consumption in the control circuit and may reduce heat generation in the coil, representing a minor operational advantage without affecting substitution compatibility.

Q: Does the wider operating temperature range of the KUP-14A55-6 affect substitution decisions?

A: The KUP-14A55-6 operates across -45°C ~ 45°C versus -50°C ~ 40°C for the original. The substitute covers the original temperature range except for operation below -45°C. For applications requiring operation at temperatures below -45°C, the original specification must be maintained.