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MK2P-I-AC24 Equivalent & Substitute Parts
Part Overview
The MK2P-I-AC24 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with 10A switching capacity at 24VAC coil voltage. This socketable, 8-pin octal relay includes a mechanical indicator and is designed for non-latching applications with switching capability up to 250VAC/250VDC.
The MK2P-I-AC24 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement and new designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Coil Voltage | 24VAC |
| Contact Form | DPDT (2 Form C) |
| Contact Rating (Current) | 10 A |
| Switching Voltage | 250VAC, 250VDC - Max |
| Mounting Type | Socketable |
| Termination Style | Plug In, 8 Pin (Octal) |
| Coil Type | Non Latching |
| Relay Type | General Purpose |
Substitute Part Grouping Explanation
Substitute parts for the MK2P-I-AC24 are qualified based on the following critical parameters:
- Coil voltage: 24VAC
- Contact configuration: DPDT (2 Form C)
- Current rating: 10A minimum
- Mounting: Socketable, 8-pin octal base
- Coil type: Non-latching operation
- Relay classification: General purpose
The substitute parts KRPA-11AG-24 and KRPA-11AN-24 (both TE Connectivity Potter & Brumfield Relays) meet these core electrical and mechanical requirements. Both are active products with enhanced operating temperature ranges and modern compliance certifications, making them suitable replacements for the obsolete MK2P-I-AC24.
Parameter Comparison
| Parameter | MK2P-I-AC24 | KRPA-11AG-24 | KRPA-11AN-24 |
|---|---|---|---|
| Manufacturer | Omron Automation and Safety | TE Connectivity Potter & Brumfield Relays | TE Connectivity Potter & Brumfield Relays |
| Coil Voltage | 24VAC | 24VAC | 24VAC |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) |
| Contact Rating (Current) | 10 A | 10 A | 10 A |
| Switching Voltage - Max | 250VAC, 250VDC | 240VAC | 240VAC |
| Coil Current | 88 mA | 84 mA | 84 mA |
| Coil Type | Non Latching | Non Latching | Non Latching |
| Termination Style | Plug In, 8 Pin (Octal) | Plug In, 8 Pin (Octal) | Plug In, 8 Pin (Octal) |
| Mounting Type | Socketable | Socketable | Socketable |
| Operating Temperature | -10°C ~ 40°C | -45°C ~ 55°C | -45°C ~ 55°C |
| Contact Material | Silver (Ag) | Silver Cadmium Oxide (AgCdO) | Silver Cadmium Oxide (AgCdO) |
| Coil Resistance | 68 Ohms | 85 Ohms | 85 Ohms |
| Product Status | Obsolete | Active | Active |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant |
| Features | Mechanical Indicator | No indicator | Lighted Indicator |
Engineering Selection Recommendations
Both KRPA-11AG-24 and KRPA-11AN-24 are active products from TE Connectivity Potter & Brumfield Relays and provide direct functional equivalence to the obsolete MK2P-I-AC24. Both substitute parts are ROHS3 compliant and offer extended operating temperature ranges (-45°C to 55°C versus -10°C to 40°C), providing improved environmental performance.
The KRPA-11AG-24 is the base equivalent without additional features. The KRPA-11AN-24 includes a lighted indicator feature, providing visual feedback during relay operation. Selection between these two depends on application requirements for indicator functionality.
Both substitute parts operate at 24VAC with identical 10A DPDT contact configuration and 8-pin octal socketable mounting, ensuring mechanical and electrical compatibility with existing MK2P-I-AC24 installations.
Frequently Asked Questions (FAQ)
Q: Can KRPA-11AG-24 and KRPA-11AN-24 directly replace MK2P-I-AC24 in existing sockets?
A: Yes. Both substitute parts feature identical 8-pin octal socketable mounting and DPDT contact configuration, allowing direct socket compatibility with MK2P-I-AC24 installations.
Q: What is the difference between KRPA-11AG-24 and KRPA-11AN-24?
A: Both parts are electrically and mechanically identical. The primary difference is that KRPA-11AN-24 includes a lighted indicator feature, while KRPA-11AG-24 does not. Select based on whether visual indication is required in your application.
Q: Are there switching voltage differences between the main part and substitutes?
A: The MK2P-I-AC24 supports switching up to 250VAC/250VDC, while both KRPA substitutes support 240VAC maximum. For applications requiring 250VDC switching, verify that 240VAC maximum rating is acceptable for your circuit design.
Q: What compliance certifications apply to the substitute parts?
A: Both KRPA-11AG-24 and KRPA-11AN-24 are ROHS3 compliant and carry EAR99 ECCN classification, matching the regulatory status of the original MK2P-I-AC24.
Q: Do the substitute parts have different coil resistance values?
A: Yes. The MK2P-I-AC24 has 68 Ohms coil resistance, while both KRPA substitutes have 85 Ohms. This results in slightly lower coil current (84 mA versus 88 mA) in the substitute parts. Verify that your power supply and control circuitry can accommodate this difference.
Q: What is the operating temperature range for the substitute parts?
A: Both KRPA-11AG-24 and KRPA-11AN-24 operate from -45°C to 55°C, compared to -10°C to 40°C for the MK2P-I-AC24. This extended range provides greater flexibility for temperature-sensitive applications.
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