MK2P-I-AC240 Equivalent & Substitute Parts

Part Overview

The MK2P-I-AC240 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with 10A contact rating and 240VAC coil voltage. This socketable, 8-pin octal relay includes a mechanical indicator and operates with a 9.2 mA coil current. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible functionality.

Key Parameters

Parameter	Value
Coil Voltage	240VAC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	10 A
Mounting Type	Socketable
Termination Style	Plug In, 8 Pin (Octal)
Coil Type	Non Latching
Relay Type	General Purpose
Switching Voltage	250VAC, 250VDC - Max

Substitute Part Grouping Explanation

Substitute parts for the MK2P-I-AC240 are qualified based on the following critical parameters that must match or exceed the original specification:

Coil voltage: 240VAC (exact match required)
Contact form: DPDT (2 Form C) (exact match required)
Contact rating: 10A minimum (exact match)
Mounting type: Socketable (exact match required)
Termination style: Plug In, 8 Pin (Octal) (exact match required)
Coil type: Non Latching (exact match required)
Relay type: General Purpose (exact match required)

The KRPA-11AG-240 and KRPA-11AN-240, both manufactured by TE Connectivity Potter & Brumfield Relays, meet all critical substitution criteria. Both parts are active products with enhanced operating temperature ranges and improved coil insulation ratings compared to the obsolete MK2P-I-AC240.

Parameter Comparison

Parameter	MK2P-I-AC240	KRPA-11AG-240	KRPA-11AN-240
Manufacturer	Omron Automation and Safety	TE Connectivity Potter & Brumfield Relays	TE Connectivity Potter & Brumfield Relays
Product Status	Obsolete	Active	Active
Coil Voltage	240VAC	240VAC	240VAC
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	250VAC, 250VDC - Max	240VAC - Max	240VAC - Max
Coil Current	9.2 mA	8.8 mA	8.8 mA
Coil Resistance	6.74 kOhms	9.11 kOhms	9.11 kOhms
Mounting Type	Socketable	Socketable	Socketable
Termination Style	Plug In, 8 Pin (Octal)	Plug In, 8 Pin (Octal)	Plug In, 8 Pin (Octal)
Coil Type	Non Latching	Non Latching	Non Latching
Coil Insulation	Not specified	Class B	Class B
Must Operate Voltage	192 VAC	204 VAC	204 VAC
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)
Features	Mechanical Indicator	None specified	Lighted Indicator
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Both KRPA-11AG-240 and KRPA-11AN-240 are direct functional equivalents to the obsolete MK2P-I-AC240. Selection between the two substitute parts depends on application-specific requirements:

The KRPA-11AG-240 provides a direct replacement without additional features, maintaining the baseline functionality of the original part with improved product status (active) and RoHS3 compliance.

The KRPA-11AN-240 offers identical electrical and mechanical specifications as the KRPA-11AG-240 with the addition of a lighted indicator feature. This variant is suitable for applications requiring visual indication of relay state.

Both substitute parts feature Class B coil insulation, higher must-operate voltage (204 VAC versus 192 VAC), and extended operating temperature range (-45°C to 55°C versus -10°C to 40°C). The contact material differs from the original (Silver Cadmium Oxide versus Silver), reflecting modern manufacturing standards. Both parts are ROHS3 compliant and carry EAR99 export classification matching the original part.

Frequently Asked Questions (FAQ)

Q: Can KRPA-11AG-240 or KRPA-11AN-240 directly replace MK2P-I-AC240 in existing sockets?

A: Yes. Both substitute parts share identical socketable mounting type, 8-pin octal termination style, and DPDT contact configuration, enabling direct socket compatibility with systems designed for MK2P-I-AC240.

Q: What is the difference between KRPA-11AG-240 and KRPA-11AN-240?

A: The primary difference is the lighted indicator feature present in KRPA-11AN-240. Both parts are electrically and mechanically identical in all other specifications. Selection depends on whether visual relay state indication is required in the application.

Q: Are there differences in coil current between the original and substitute parts?

A: Yes. The MK2P-I-AC240 draws 9.2 mA coil current, while both KRPA variants draw 8.8 mA. This lower current consumption in the substitute parts results from higher coil resistance (9.11 kOhms versus 6.74 kOhms). This difference is within acceptable operating margins for general purpose relay applications.

Q: What is the significance of the higher must-operate voltage in the substitute parts?

A: The KRPA variants require 204 VAC minimum to operate compared to 192 VAC for the original part. In applications with marginal supply voltage, this 12 VAC difference should be evaluated against actual system voltage conditions to ensure reliable operation.

Q: Do the substitute parts meet current compliance standards?

A: Yes. Both KRPA-11AG-240 and KRPA-11AN-240 are ROHS3 compliant and carry EAR99 export classification, meeting current regulatory requirements for electronic components.

Q: What is the operating temperature advantage of the substitute parts?

A: The substitute parts operate across -45°C to 55°C, compared to -10°C to 40°C for the original part. This extended range provides greater flexibility for applications in temperature-variable environments.

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