PT-IQ-4X1-48DC-PT Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The PT-IQ-4X1-48DC-PT is a transient voltage suppressor (TVS) module manufactured by Phoenix Contact, designed for circuit protection applications. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain system continuity and ensure ongoing availability for replacement and new installations. The module provides single-pole protection with DIN Rail mounting and is RoHS compliant.

Substiute Parts

2801273

Phoenix ContactIn Stock: 8012801273 Datasheet

Current PartRFQ

2801274

Phoenix ContactIn Stock: 8882801274 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PT-IQ-4X1-48DC-PT is determined by strict equivalence of the following critical parameters:

• Manufacturer and Series: Phoenix Contact PT series ensures mechanical and electrical compatibility with existing DIN Rail installations
• Number of Poles: Single-pole configuration (1 pole) is mandatory for direct substitution
• Voltage - Continuous Operating (Max) (MCOV): 37VAC, 53VDC must be maintained
• Current - Discharge (Nom) (8/20µS): 10 kA nominal discharge current
• Current - Discharge (Max) (8/20µS): 20 kA maximum discharge current
• Mounting Type: DIN Rail mounting ensures physical compatibility
• Form: Base + Module configuration

The substitute part PT-IQ-4X1+F-48DC-PT (manufacturer part number 2801274) maintains all critical electrical and mechanical parameters required for direct substitution. The difference in Voltage - Protection Level (VP) (2416) does not preclude substitution, as this parameter reflects application-specific protection thresholds rather than core compatibility criteria.

Parameter Comparison

Engineering Selection Recommendations

The PT-IQ-4X1+F-48DC-PT (2801274) is the direct substitute for the obsolete PT-IQ-4X1-48DC-PT (2801273). Selection of the substitute part is justified on the following basis:

• Product Status: The substitute part maintains active product status, ensuring continued availability and manufacturer support
• Compliance: The substitute part carries UL approval, providing additional regulatory certification not specified for the original part
• Electrical Equivalence: All critical electrical parameters—MCOV, nominal and maximum discharge currents, and operating temperature range—are identical
• Mechanical Compatibility: Both parts share identical mounting type (DIN Rail), form factor (Base + Module), and pole configuration (1 pole)
• Regulatory Compliance: Both parts are RoHS compliant with identical MSL ratings

Frequently Asked Questions (FAQ)

Q: Can PT-IQ-4X1+F-48DC-PT (2801274) be used as a direct replacement for PT-IQ-4X1-48DC-PT (2801273)?

A: Yes. Both parts maintain identical electrical parameters (MCOV, discharge currents, operating temperature) and mechanical specifications (DIN Rail mounting, single-pole configuration, Base + Module form). The substitute part is active and carries UL approval.

Q: What is the difference between the two part numbers?

A: The primary difference is product status: the original part (2801273) is obsolete, while the substitute (2801274) is active. The substitute includes UL approval certification. The "+F" designation in the substitute part number indicates a design revision. The Voltage - Protection Level (VP) differs (160 V vs. 950 V), reflecting application-specific protection thresholds.

Q: Are there packaging differences between these parts?

A: The original part packaging is not specified. The substitute part is supplied in Bulk packaging. Both parts are RoHS compliant with MSL rating of 1 (Unlimited).

Q: Is the UL approval on the substitute part significant for compatibility?

A: UL approval on the substitute part provides additional regulatory certification and does not affect electrical or mechanical compatibility. It represents an enhancement in terms of compliance documentation.

Q: Can the substitute part be installed in existing systems designed for the original part?

A: Yes. Identical MCOV, discharge current ratings, operating temperature range, DIN Rail mounting, and single-pole configuration ensure direct compatibility with existing installations.