Phoenix Contact 1770571 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1770571 is a 6-position wire-to-board terminal block with side entry configuration and 15mm pitch, designed for horizontal mounting through PCB holes. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The part operates at 600V with 66A current capacity and accommodates wire gauges from 4-18 AWG using a screwless spring cage termination method.

Substiute Parts

1770571

Phoenix ContactIn Stock: 11431770571 Datasheet

Current PartRFQ

1932533

Phoenix ContactIn Stock: 10161932533 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1770571 is determined by the following critical parameters:

• Pitch and Position Count: Both main and substitute parts must maintain 0.591" (15.00mm) pitch with 6 positions per level to ensure PCB footprint compatibility
• Mating Orientation: Horizontal with board configuration is required for mechanical fit
• Mounting Type: Through hole mounting must be preserved
• Voltage and Current Ratings: Substitute parts must meet or exceed 600V and 66A specifications
• Wire Gauge Compatibility: Acceptable wire gauge range must accommodate the original 4-18 AWG specification
• Housing Material: Polyamide (PA) nylon construction ensures thermal and chemical compatibility
• Compliance: RoHS compliance status must be maintained

The Phoenix Contact 1932533 qualifies as a substitute based on these parameters. While it operates at a higher current rating (115A) and accepts a broader wire gauge range (2-20 AWG), these represent improvements that do not compromise compatibility. The shift from screwless spring cage termination to screw-based rising cage clamp represents a functional change in the connection method but maintains electrical and mechanical compatibility within the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1932533 is the qualified substitute for the obsolete 1770571 terminal block. Selection of the 1932533 is supported by the following engineering factors:

Product Status: The 1932533 maintains active product status, ensuring continued availability and manufacturer support, whereas the 1770571 is obsolete and subject to supply discontinuation.

Compliance and Certification: Both parts maintain RoHS compliance and equivalent regulatory classification (ECCN: EAR99, HTSUS: 8536.90.4000), ensuring no change in export or regulatory handling requirements.

Electrical Performance: The 1932533 exceeds the electrical specifications of the original part, with current capacity increased from 66A to 115A while maintaining the 600V voltage rating. This enhancement provides additional design margin without introducing incompatibility.

Physical and Mechanical Compatibility: Identical pitch (15mm), position count (6), mating orientation (horizontal with board), and mounting type (through hole) ensure direct PCB footprint compatibility. Both parts use polyamide nylon housing, maintaining thermal and chemical resistance characteristics.

Wire Termination Transition: The shift from screwless spring cage to screw-based rising cage clamp represents a functional change requiring operator familiarity with the M5 screw interface and specified torque range (2.5-4.5 Nm). This change does not affect electrical performance or mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can the 1932533 be used as a direct replacement for the 1770571 without PCB modification?

A: Yes. Both parts share identical pitch (15mm), position count (6), and through-hole mounting configuration. PCB footprints are compatible without modification.

Q: What is the primary difference between these two terminal blocks?

A: The main differences are product status (1770571 is obsolete; 1932533 is active), wire termination method (screwless spring cage versus screw-based rising cage clamp), and electrical ratings (66A versus 115A current capacity). The 1932533 also accepts a broader wire gauge range (2-20 AWG versus 4-18 AWG).

Q: Does the screw termination method of the 1932533 affect installation procedures?

A: Yes. The 1932533 requires M5 screw fastening with specified torque of 2.5-4.5 Nm (22.1-39.8 Lb-In), whereas the 1770571 uses screwless spring cage termination. Installation procedures and tooling requirements differ accordingly.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1770571 and 1932533 are RoHS compliant and carry identical regulatory classifications.

Q: What wire gauges are compatible with the 1932533?

A: The 1932533 accommodates wire gauges from 2-20 AWG, which encompasses the original 1770571 specification of 4-18 AWG. Wires outside the 4-18 AWG range (specifically 2-3 AWG and 19-20 AWG) are additionally supported by the substitute part.

Q: Is the 1932533 available in the same packaging as the 1770571?

A: The 1932533 is supplied in bulk packaging, whereas the 1770571 packaging specification is not detailed in available data. Confirm packaging requirements with your procurement department.