HP2-DC24V Equivalent & Substitute Parts

Part Overview

The HP2-DC24V is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with 10A switching capacity at 24VDC coil voltage. This relay is currently classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and legacy system support. The socketable mounting design and quick-connect termination enable straightforward replacement in existing applications.

Key Parameters

Parameter	Value
Coil Voltage	24VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	10 A
Mounting Type	Socketable
Termination Style	Plug In, Quick Connect
Coil Type	Non Latching
Operating Temperature Range	-50°C ~ 40°C

Substitute Part Grouping Explanation

Substitution of the HP2-DC24V is determined by strict equivalence across the following critical parameters:

Coil voltage: 24VDC (exact match required)
Contact configuration: DPDT (2 Form C) (exact match required)
Contact current rating: 10A (exact match required)
Mounting type: Socketable (exact match required)
Termination style: Plug In, Quick Connect (compatible connector types acceptable)
Coil type: Non Latching (exact match required)

The three substitute parts listed—KUP-11D15-24, KUP-11D35-24, and KUP-11D45-24—all meet these core electrical and mechanical requirements. These relays are manufactured by TE Connectivity Potter & Brumfield Relays and maintain active product status, ensuring ongoing availability and support.

Parameter Comparison

Parameter	HP2-DC24V	KUP-11D15-24	KUP-11D35-24	KUP-11D45-24
Manufacturer	Panasonic Electric Works	TE Connectivity Potter & Brumfield Relays	TE Connectivity Potter & Brumfield Relays	TE Connectivity Potter & Brumfield Relays
Coil Voltage	24VDC	24VDC	24VDC	24VDC
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 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	54.5 mA	51 mA	51 mA	51 mA
Mounting Type	Socketable	Socketable	Socketable	Socketable
Termination Style	Plug In, Quick Connect - 0.205" (5.2mm)	Plug In, Quick Connect - 0.187" (4.7mm)	Plug In, Quick Connect - 0.187" (4.7mm)	Plug In, Quick Connect - 0.187" (4.7mm)
Coil Type	Non Latching	Non Latching	Non Latching	Non Latching
Must Operate Voltage	19.2 VDC	18 VDC	18 VDC	18 VDC
Operate Time	25 ms	15 ms	15 ms	15 ms
Release Time	25 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	440 Ohms	472 Ohms	472 Ohms	472 Ohms
Product Status	Obsolete	Active	Active	Active
Features	-	-	Lighted Indicator	Lighted Indicator, Test Button
RoHS Status	Not specified	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Affected	Vendor Undefined	Vendor Undefined

Engineering Selection Recommendations

All three substitute parts—KUP-11D15-24, KUP-11D35-24, and KUP-11D45-24—satisfy the core electrical and mechanical requirements for direct replacement of the HP2-DC24V. Selection among these options depends on regulatory compliance and feature requirements:

KUP-11D15-24 is the baseline substitute with no additional features. This part is RoHS non-compliant and REACH-affected, making it suitable for applications without regulatory constraints.

KUP-11D35-24 includes a lighted indicator feature and achieves ROHS3 compliance, providing enhanced visibility during operation while meeting modern environmental standards. REACH status is vendor-undefined.

KUP-11D45-24 provides both lighted indicator and test button functionality with ROHS3 compliance. This variant offers the most comprehensive feature set and regulatory alignment for new designs or systems requiring enhanced diagnostics and compliance documentation.

For legacy system maintenance where the original HP2-DC24V specifications are critical, KUP-11D15-24 provides the closest electrical match. For new installations or systems requiring RoHS3 compliance, KUP-11D35-24 or KUP-11D45-24 are preferred.

Frequently Asked Questions (FAQ)

Q: Can KUP-11D15-24, KUP-11D35-24, and KUP-11D45-24 be used interchangeably with HP2-DC24V?

A: Yes, all three substitute parts meet the core electrical and mechanical requirements: 24VDC coil voltage, DPDT contact configuration, 10A current rating, socketable mounting, and non-latching coil type. The primary differences are operating temperature range, response time, contact material composition, and optional features (lighted indicator, test button).

Q: What is the difference in termination connector size between HP2-DC24V and the substitute parts?

A: The HP2-DC24V uses 0.205" (5.2mm) quick-connect terminals, while KUP-11D15-24, KUP-11D35-24, and KUP-11D45-24 use 0.187" (4.7mm) terminals. Both are standard quick-connect formats and are compatible with appropriate socket adapters or terminal blocks.

Q: Are there compliance differences between the substitute parts?

A: Yes. KUP-11D15-24 is RoHS non-compliant and REACH-affected. KUP-11D35-24 and KUP-11D45-24 are ROHS3 compliant. For applications subject to RoHS or REACH regulations, KUP-11D35-24 or KUP-11D45-24 are required.

Q: How do the operating temperature ranges compare?

A: The HP2-DC24V operates from -50°C to 40°C. All three substitute parts operate from -45°C to 70°C, providing a wider upper temperature limit. For applications requiring operation below -45°C, the HP2-DC24V specifications must be verified against system requirements.

Q: What is the difference between KUP-11D35-24 and KUP-11D45-24?

A: Both parts are electrically identical with ROHS3 compliance. KUP-11D45-24 includes an additional test button feature beyond the lighted indicator found on KUP-11D35-24. Selection depends on whether manual relay testing capability is required in the application.

Q: Why is the coil current lower in the substitute parts?

A: The substitute parts draw 51 mA compared to 54.5 mA for the HP2-DC24V. This 6% reduction in coil current is within normal manufacturing tolerance and does not affect functional compatibility. The slightly lower coil resistance (472 Ohms vs. 440 Ohms) accounts for this difference.

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