HP3-L-DC48V General Purpose Relay 3PDT 10A 48VDC Equivalent & Substitute Parts

Part Overview

The HP3-L-DC48V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with 10A contact rating and 48VDC coil voltage. This socketable relay includes a lighted indicator and operates across a temperature range of -50°C to 40°C. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this relay specification is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	HP3-L-DC48V
Manufacturer	Panasonic Electric Works
Coil Voltage	48VDC
Contact Form	3PDT (3 Form C)
Contact Rating (Current)	10 A
Switching Voltage	250VAC - Nom
Mounting Type	Socketable
Termination Style	Plug In, Quick Connect - 0.187" (4.7mm)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the HP3-L-DC48V are qualified based on the following critical parameters that must match or exceed the original specification:

Coil voltage: 48VDC (exact match required)
Contact form: 3PDT (3 Form C) (exact match required)
Contact rating: 10A minimum (exact match provided)
Mounting type: Socketable (exact match required)
Termination style: Plug In, Quick Connect - 0.187" (4.7mm) (exact match required)
Coil type: Non Latching (exact match required)
Relay type: General Purpose (exact match required)

The three substitute parts listed—KUP-14D15-48, KUP-14D35-48, and KUP-14D45-48—all meet these core electrical and mechanical compatibility requirements. All substitutes are manufactured by TE Connectivity Potter & Brumfield Relays and maintain active product status.

Parameter Comparison

Parameter	HP3-L-DC48V	KUP-14D15-48	KUP-14D35-48	KUP-14D45-48
Coil Voltage	48VDC	48VDC	48VDC	48VDC
Contact Form	3PDT (3 Form C)	3PDT (3 Form C)	3PDT (3 Form C)	3PDT (3 Form C)
Contact Rating (Current)	10 A	10 A	10 A	10 A
Switching Voltage	250VAC - Nom	240VAC - Max	240VAC - Max	240VAC - Max
Coil Current	31 mA	26.7 mA	26.7 mA	26.7 mA
Coil Type	Non Latching	Non Latching	Non Latching	Non Latching
Mounting Type	Socketable	Socketable	Socketable	Socketable
Termination Style	Plug In, Quick Connect - 0.187" (4.7mm)	Plug In, Quick Connect - 0.187" (4.7mm)	Plug In, Quick Connect - 0.187" (4.7mm)	Plug In, Quick Connect - 0.187" (4.7mm)
Must Operate Voltage	38.4 VDC	36 VDC	36 VDC	36 VDC
Operate Time	30 ms	15 ms	15 ms	15 ms
Release Time	30 ms	10 ms	10 ms	10 ms
Operating Temperature	-50°C ~ 40°C	-45°C ~ 70°C	-45°C ~ 70°C	-45°C ~ 70°C
Contact Material	Silver (Ag)	Silver Cadmium Oxide (AgCdO)	Silver Cadmium Oxide (AgCdO)	Silver Cadmium Oxide (AgCdO)
Coil Resistance	1.56 kOhms	1.8 kOhms	1.8 kOhms	1.8 kOhms
Features	Lighted Indicator	None	Lighted Indicator	Lighted Indicator, Test Button
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three substitute parts maintain electrical and mechanical compatibility with the HP3-L-DC48V. Selection among the KUP series should be based on compliance requirements and feature requirements:

KUP-14D35-48 and KUP-14D45-48 are ROHS3 compliant, making them suitable for applications requiring RoHS compliance. KUP-14D15-48 is RoHS non-compliant and should be selected only where RoHS compliance is not a requirement.

KUP-14D35-48 provides lighted indicator functionality matching the original HP3-L-DC48V feature set. KUP-14D45-48 adds a test button in addition to the lighted indicator. KUP-14D15-48 does not include indicator features.

All substitutes demonstrate faster operate and release times (15 ms and 10 ms respectively) compared to the original specification (30 ms each), and support a wider operating temperature range (-45°C to 70°C versus -50°C to 40°C).

Frequently Asked Questions (FAQ)

Q: Can KUP-14D15-48 be used as a direct replacement for HP3-L-DC48V?

A: KUP-14D15-48 meets all core electrical and mechanical requirements for substitution. However, it lacks the lighted indicator feature present in the original HP3-L-DC48V. Selection depends on whether indicator functionality is required in the application.

Q: What is the difference between the three KUP substitute options?

A: KUP-14D15-48 has no indicator features and is RoHS non-compliant. KUP-14D35-48 includes a lighted indicator and is ROHS3 compliant. KUP-14D45-48 includes both a lighted indicator and test button, and is ROHS3 compliant. All three are electrically equivalent for core relay function.

Q: Are the faster switching times of the KUP relays compatible with HP3-L-DC48V applications?

A: The KUP series operates at 15 ms (operate) and 10 ms (release) compared to 30 ms for both parameters on the HP3-L-DC48V. Faster switching times are generally compatible with applications designed for the original relay, as they represent improved performance characteristics.

Q: What packaging options are available for the substitute parts?

A: KUP-14D15-48 and KUP-14D35-48 are supplied in Bulk packaging. KUP-14D45-48 is supplied in Tray packaging. Packaging selection should align with procurement and handling requirements.

Q: Are there compliance differences between the substitute parts?

A: KUP-14D35-48 and KUP-14D45-48 are ROHS3 compliant. KUP-14D15-48 is RoHS non-compliant. Applications subject to RoHS requirements should specify either KUP-14D35-48 or KUP-14D45-48.

Q: How do the coil resistance values differ?

A: HP3-L-DC48V has 1.56 kOhms coil resistance, while all KUP substitutes have 1.8 kOhms. This difference results in slightly lower coil current (26.7 mA versus 31 mA) for the KUP series, which may reduce power consumption in the application circuit.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message