MK2P-S-AC240 Equivalent & Substitute Parts

Part Overview

The MK2P-S-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 mechanical indicator and test button functionality. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this relay type is specified.

Key Parameters

Parameter	Value
Coil Voltage	240VAC
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-S-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 from TE Connectivity Potter & Brumfield Relays meet all critical substitution criteria. Both parts are manufactured by an established relay supplier, maintain active product status, and provide identical electrical and mechanical interfaces required for direct replacement in octal socket applications.

Parameter Comparison

Parameter	MK2P-S-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 Type	Non Latching	Non Latching	Non Latching
Termination Style	Plug In, 8 Pin (Octal)	Plug In, 8 Pin (Octal)	Plug In, 8 Pin (Octal)
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	6.74 kOhms	9.11 kOhms	9.11 kOhms
Must Operate Voltage	192 VAC	204 VAC	204 VAC
Operate Time	20 ms	Not specified	Not specified
Release Time	20 ms	Not specified	Not specified
Features	Mechanical Indicator, Test Button	None specified	Lighted Indicator
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Packaging	Not specified	Tray	Tray

Engineering Selection Recommendations

Both KRPA-11AG-240 and KRPA-11AN-240 are qualified substitutes for the obsolete MK2P-S-AC240. Selection between the two TE Connectivity alternatives depends on application requirements:

KRPA-11AG-240 provides a direct functional replacement without additional features, maintaining compatibility with existing circuit designs that do not require indicator functionality.

KRPA-11AN-240 includes a lighted indicator feature, offering enhanced operational visibility in applications where indicator status is beneficial. Both parts are ROHS3 compliant and manufactured by an active supplier, ensuring long-term availability and supply chain continuity.

The TE Connectivity KRPA series relays operate across an extended temperature range (-45°C to 55°C) compared to the original MK2P-S-AC240 (-10°C to 40°C), providing improved performance in wider environmental conditions. Contact material composition differs (AgCdO versus Ag), which is acceptable for general purpose relay applications at the specified 10A contact rating and 240VAC switching voltage.

Frequently Asked Questions (FAQ)

Q: Can KRPA-11AG-240 or KRPA-11AN-240 be used as direct replacements in existing MK2P-S-AC240 sockets?

A: Yes. Both substitute parts feature identical 8-pin octal socketable termination, matching coil voltage (240VAC), contact form (DPDT), and contact rating (10A). Direct socket replacement is supported without circuit modification.

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

A: The primary difference is the inclusion of a lighted indicator in the KRPA-11AN-240 model. Both parts share identical electrical specifications, coil voltage, contact rating, and socketable mounting. Selection depends on whether indicator functionality is required for the application.

Q: Are there compatibility concerns with the different contact materials?

A: No. The AgCdO (Silver Cadmium Oxide) contact material in the KRPA series is suitable for general purpose relay applications at 10A contact rating and 240VAC switching voltage. Contact material differences do not affect compatibility in this application category.

Q: What is the impact of the extended operating temperature range in the substitute parts?

A: The KRPA series operating range (-45°C to 55°C) exceeds the original MK2P-S-AC240 specification (-10°C to 40°C). This provides improved performance margin in applications subject to wider environmental temperature variations. No negative impact results from this specification enhancement.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both KRPA-11AG-240 and KRPA-11AN-240 are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What packaging is available for the substitute parts?

A: Both KRPA-11AG-240 and KRPA-11AN-240 are supplied in tray packaging, suitable for automated assembly and component handling in production environments.

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