ARB-120-ADA General Purpose Relay DPDT 10A 120V

Part Overview

The ARB-120-ADA is a general purpose relay manufactured by Mueller Electric Co, featuring a DPDT (2 Form C) contact configuration with a 120VAC/DC coil and 10A contact rating. This socketable relay is designed for applications requiring reliable switching at 240VAC nominal switching voltage and includes a lighted indicator feature. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain supply chain continuity for existing applications and designs.

Substiute Parts

ARB-120-ADA

Mueller Electric CoIn Stock: 1108ARB-120-ADA Datasheet

Current PartRFQ

ARB-120-ADA

ATC-Diversified ElectronicsIn Stock: 687ARB-120-ADA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ARB-120-ADA is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Contact Form: DPDT (2 Form C)
• Coil Voltage: 120VAC/DC
• Contact Rating (Current): 10 A
• Switching Voltage: 240VAC - Nom
• Mounting Type: Socketable
• Coil Type: Non Latching
• Operating Temperature Range: -20°C ~ 55°C
• Features: Lighted Indicator
• Relay Type: General Purpose
• Base Product Number: ARB-120

Allowable Variations:

• Manufacturer identity (different OEM)
• Termination pin count (8-pin vs 11-pin octal configurations)
• Product status (active vs discontinued)
• Packaging format
• RoHS compliance status
• Approval agency certifications

The ARB-120-ADA manufactured by ATC-Diversified Electronics qualifies as a substitute based on complete alignment with all mandatory matching parameters.

Parameter Comparison

Engineering Selection Recommendations

The ARB-120-ADA manufactured by ATC-Diversified Electronics is electrically and mechanically equivalent to the discontinued Mueller Electric Co ARB-120-ADA. Both parts share identical specifications across all critical functional parameters including contact configuration, coil voltage, current rating, switching voltage, and operating temperature range.

Key Considerations:

The ATC-Diversified Electronics variant is currently in active production status with 625 units in stock, providing supply continuity for the discontinued Mueller Electric Co part. Both versions feature socketable mounting with octal pin termination, though the ATC variant uses an 8-pin configuration compared to the Mueller 11-pin configuration. Both maintain identical electrical performance at the specified operating parameters.

The ATC-Diversified Electronics version carries CSA and cURus approval certifications and specifies a maximum switching load of 2400VA. The Mueller Electric Co version's RoHS status requires inventory verification, while the ATC version is documented as RoHS non-compliant. Both parts carry MSL rating of 1 (Unlimited) and operate across the identical temperature range of -20°C to 55°C.

Frequently Asked Questions (FAQ)

Q: Can the ATC-Diversified Electronics ARB-120-ADA directly replace the Mueller Electric Co ARB-120-ADA?

A: Yes. Both parts are electrically equivalent with identical coil voltage (120VAC/DC), contact form (DPDT), current rating (10A), switching voltage (240VAC nominal), and operating temperature range (-20°C to 55°C). Both feature socketable mounting with octal pin termination and lighted indicator functionality.

Q: What is the difference between the 11-pin and 8-pin octal termination styles?

A: The Mueller Electric Co version uses 11-pin octal termination while the ATC-Diversified Electronics version uses 8-pin octal termination. Both are octal-based socketable configurations. Socket compatibility must be verified for the specific application, as the pin count difference may affect physical fit depending on the relay socket design.

Q: Are there compliance differences between the two versions?

A: The ATC-Diversified Electronics version carries CSA and cURus approval certifications. The Mueller Electric Co version's approval status is not specified in the available documentation. The ATC version is documented as RoHS non-compliant, while the Mueller version's RoHS status requires inventory verification.

Q: What is the maximum switching load for these relays?

A: The ATC-Diversified Electronics version specifies a maximum switching load of 2400VA. The Mueller Electric Co version does not provide this specification in the available documentation.

Q: Are both parts currently available?

A: The Mueller Electric Co ARB-120-ADA is discontinued at DiGi Electronics. The ATC-Diversified Electronics ARB-120-ADA is in active production status with 625 units currently in stock.