OAC24RN AC Output Module Equivalent & Substitute Parts

Part Overview

The OAC24RN is an AC output module manufactured by Sensata-Crydom, designed to switch AC loads with a 24VDC control signal. This module provides 4.6A output capacity across a 12–140VAC range. The OAC24RN is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this module is specified.

Substiute Parts

OAC24RN

Sensata-CrydomIn Stock: 1190OAC24RN Datasheet

Current PartRFQ

OAC-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 2138OAC-24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OAC24RN is determined by the following critical parameters:

• Input voltage specification (24VDC control signal)
• Input current draw (13 mA)
• Output voltage range capability (minimum 12VAC, maximum 140VAC)
• Output current capacity (4.6A minimum)
• Switching response times (turn-on and turn-off characteristics)
• Physical form factor and mounting compatibility (hold-down screw feature)
• Series compatibility (OAC series)

The OAC-24 manufactured by TE Connectivity Potter & Brumfield Relays shares the same input voltage, input current, series designation, and physical mounting features. However, differences exist in output voltage range (12–120VAC versus 12–140VAC) and output current capacity (3A versus 4.6A), which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The OAC-24 is the designated substitute for the obsolete OAC24RN based on series compatibility and matching control signal specifications. Selection between these parts requires evaluation of three specific constraints:

Output Voltage Range: Applications requiring output voltages above 120VAC cannot use the OAC-24, as its maximum output voltage is limited to 120VAC compared to the OAC24RN's 140VAC capability.

Output Current Capacity: Systems requiring sustained output currents above 3A cannot use the OAC-24, as its maximum output current is 3A versus the OAC24RN's 4.6A rating.

Switching Speed: The OAC24RN features a 0.10 ms turn-on time, while the OAC-24 has an 8.33 ms turn-on time. Applications with fast switching requirements may be affected by this difference.

Regulatory Compliance: The OAC24RN is RoHS compliant, while the OAC-24 is RoHS non-compliant and REACH affected. Procurement decisions must account for applicable regulatory requirements in the target market.

Frequently Asked Questions (FAQ)

Q: Can the OAC-24 directly replace the OAC24RN in all applications?

A: Direct replacement is possible only when the application operates within the OAC-24's constraints: output voltage not exceeding 120VAC, output current not exceeding 3A, and turn-on time tolerance of 8.33 ms. Applications exceeding any of these parameters require the OAC24RN or an alternative module with higher ratings.

Q: What is the significance of the different turn-on times?

A: The OAC24RN has a 0.10 ms turn-on time while the OAC-24 has an 8.33 ms turn-on time. This 83-fold difference affects switching response in time-critical applications. Systems requiring fast AC load switching must verify compatibility with the OAC-24's slower response.

Q: Are there packaging differences between these parts?

A: The OAC24RN is specified with standard packaging, while the OAC-24 is supplied in bulk packaging. Both modules feature hold-down screw mounting, ensuring mechanical compatibility in standard mounting configurations.

Q: How do RoHS compliance differences affect selection?

A: The OAC24RN is RoHS compliant, meeting EU Directive 2011/65/EU requirements. The OAC-24 is RoHS non-compliant and REACH affected. Selection must align with applicable environmental and regulatory requirements for the end product's target market.

Q: What is the inventory status of these parts?

A: The OAC24RN has 1092 pieces in stock as new original inventory. The OAC-24 has 2100 pieces in stock as new original inventory. Both are available for immediate procurement.