175B-EU Equivalent & Substitute Parts Reference

Part Overview

The Hammond Manufacturing 175B-EU is a non-isolated autotransformer rated for 200VA with primary voltage of 230V and secondary voltage of 115V. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and component procurement.

The 175B-EU features CEE 7/4 input connector and NEMA 5-15R output connector configuration, with a weight of 4.5 lbs (2 kg). The unit is ROHS3 compliant and REACH unaffected, meeting current environmental regulatory requirements.

Substiute Parts

175B-EU

Hammond ManufacturingIn Stock: 1049175B-EU Datasheet

Current PartRFQ

172B

Hammond ManufacturingIn Stock: 953172B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 175B-EU requires matching the following critical electrical parameters: primary voltage of 230V, secondary voltage of 115V, and power rating of 200VA. These parameters define the core functional requirement for voltage conversion in the specified application.

The Hammond Manufacturing 172B qualifies as a substitute based on identical voltage specifications (230V primary to 115V secondary) and matching power capacity (200VA). Both components maintain ROHS3 compliance and REACH unaffected status.

A key distinction exists in transformer type: the 175B-EU is a non-isolated autotransformer, while the 172B is an isolation transformer. This difference affects electrical safety characteristics and must be evaluated against application requirements.

Connector compatibility differs between the two models. The 175B-EU uses CEE 7/4 input and NEMA 5-15R output, while the 172B uses NEMA 6-15P input and NEMA 5-15R output. Physical connector adaptation may be required during substitution.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 172B represents the primary substitute for the obsolete 175B-EU, offering identical voltage conversion specifications and power capacity within current active product inventory. Both components maintain equivalent environmental compliance certifications (ROHS3, REACH unaffected).

Selection of the 172B as a replacement requires consideration of the transformer type difference. The isolation transformer design of the 172B provides galvanic isolation between primary and secondary circuits, whereas the 175B-EU autotransformer design does not. This functional difference must be evaluated against the specific application electrical safety requirements.

Connector compatibility assessment is necessary prior to substitution. The input connector transition from CEE 7/4 (175B-EU) to NEMA 6-15P (172B) requires physical interface adaptation. The output connector remains consistent at NEMA 5-15R across both models.

The increased weight of the 172B (8.5 lbs versus 4.5 lbs) reflects the isolation transformer construction and should be considered for mounting and structural support applications.

Frequently Asked Questions (FAQ)

Q: Can the 172B directly replace the 175B-EU without modification?

A: Direct replacement requires connector adaptation. The input connector differs (CEE 7/4 to NEMA 6-15P), necessitating physical interface modification or adapter implementation. The output connector (NEMA 5-15R) remains compatible.

Q: What is the functional difference between the autotransformer and isolation transformer designs?

A: The 175B-EU autotransformer provides voltage conversion without galvanic isolation between primary and secondary circuits. The 172B isolation transformer provides galvanic isolation. Application electrical safety requirements determine which design is appropriate.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the 175B-EU and 172B are ROHS3 compliant and REACH unaffected, meeting current environmental regulatory requirements.

Q: Does the weight difference between models affect installation?

A: The 172B weighs 8.5 lbs compared to 4.5 lbs for the 175B-EU. Mounting structures and support systems must accommodate the increased weight of the isolation transformer design.

Q: What voltage specifications must be matched for substitution?

A: Substitution requires matching primary voltage (230V), secondary voltage (115V), and power capacity (200VA). These parameters define the core functional requirement for voltage conversion.

Q: Is the 172B currently available?

A: Yes. The 172B is classified as active product status with 873 units in current inventory, whereas the 175B-EU is obsolete with 989 units remaining in stock.