BSPM2240S3G Equivalent & Substitute Parts

Part Overview

The BSPM2240S3G is a Type 2 Transient Voltage Suppressor (TVS) varistor manufactured by Eaton - Bussmann Electrical Division, designed for circuit protection applications. This component features a 550VAC maximum continuous operating voltage (MCOV), 40 kA maximum discharge current (8/20µS), and 200 kA short circuit rating (SCCR). The unit includes remote signaling contacts and thermal protection, mounted on DIN rail infrastructure.

The BSPM2240S3G is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement and new installations where this protection rating is required.

Substiute Parts

BSPM2240S3G

Eaton - Bussmann Electrical DivisionIn Stock: 1253BSPM2240S3G Datasheet

Current PartRFQ

BSPMA2240S3GR

Eaton - Bussmann Electrical DivisionIn Stock: 928BSPMA2240S3GR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BSPM2240S3G is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Voltage - Continuous Operating (Max) (MCOV): 550VAC (main part) vs. 240VAC (substitute)
• Current - Short Circuit Rating (SCCR): 200 kA (both parts)
• Number of Poles: 2 (both parts)

Mechanical & Form Factor Parameters:

• Form: Base + Module (both parts)
• Mounting Type: DIN Rail (both parts)

Functional Parameters:

• Features: Remote Signaling Contacts (both parts)
• Category: Transient Voltage Suppressors (TVS) (both parts)

The BSPMA2240S3GR is identified as a substitute part within the same manufacturer's product line. However, the substitute operates at a lower maximum continuous operating voltage (240VAC vs. 550VAC), which represents a significant electrical parameter difference. Both parts maintain identical pole configuration, mounting methodology, and short circuit rating capacity.

Parameter Comparison

Engineering Selection Recommendations

The BSPMA2240S3GR is an active product from the same manufacturer, providing continuity of supply for the obsolete BSPM2240S3G. Both components share identical pole configuration, mounting infrastructure (DIN Rail), and short circuit rating capacity (200 kA).

The primary distinction is the maximum continuous operating voltage: the BSPM2240S3G operates at 550VAC, while the BSPMA2240S3GR operates at 240VAC. This voltage differential must be evaluated against the specific application requirements.

The BSPMA2240S3GR carries RoHS compliance certification and maintains UL approval. The substitute retains remote signaling contact functionality, though thermal protection is not specified in the available documentation. Approval agencies differ slightly: the substitute includes CSA certification in addition to UL, while the original includes CE and cURus certifications.

Frequently Asked Questions (FAQ)

Q: Can the BSPMA2240S3GR directly replace the BSPM2240S3G in all applications?

A: Direct replacement depends on application voltage requirements. The BSPMA2240S3GR operates at a maximum continuous operating voltage of 240VAC, compared to the BSPM2240S3G at 550VAC. Applications operating above 240VAC require evaluation of alternative solutions.

Q: What is the difference between Type 1 and Type 2 TVS varistors?

A: The provided documentation specifies Type 2 for the BSPM2240S3G and Type 1 for the BSPMA2240S3GR. This classification difference is noted in the parameter comparison; however, detailed technical distinctions between these types are not included in the available specifications.

Q: Are both parts mounted identically?

A: Yes. Both the BSPM2240S3G and BSPMA2240S3GR use DIN Rail mounting and maintain identical pole configuration (2 poles), ensuring mechanical compatibility in existing installations.

Q: What certifications apply to each part?

A: The BSPM2240S3G carries CE, cURus, and UL approvals. The BSPMA2240S3GR carries CSA and UL approvals. Both meet UL standards; however, certification scope differences should be confirmed against specific regional or application requirements.

Q: Does the BSPMA2240S3GR include thermal protection?

A: Thermal protection is specified for the BSPM2240S3G. The BSPMA2240S3GR documentation does not specify thermal protection status. This feature difference should be evaluated for applications requiring this functionality.

Q: What is the short circuit rating for both parts?

A: Both the BSPM2240S3G and BSPMA2240S3GR maintain a 200 kA short circuit rating (SCCR), ensuring equivalent protection capacity in this parameter.