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Phoenix Contact 2794958 Terminal Block - Equivalent & Substitute Parts
Part Overview
The Phoenix Contact 2794958 is a feed-through terminal block connector with 3 positions, designed for wire gauges 10-26 AWG (0.2-4mm²). This component features screw termination, varistor protection, and operates at 24V UL with a 30A current rating. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance and component sourcing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 2794958 |
| Manufacturer | Phoenix Contact |
| Category | Terminal Blocks |
| Series | TERMITRAB SLKK |
| Type | Feed Through |
| Number of Positions | 3 |
| Number of Levels | 2 |
| Termination Style | Screw |
| Wire Gauge - AWG | 10-26 AWG |
| Wire Gauge - mm² | 0.2-4mm² |
| Current - UL | 30 A |
| Voltage - UL | 24V |
| Terminal Width | 6.2mm |
| Features | Varistor |
| Color | Black |
| Material - Insulation | Polyamide (PA), Nylon |
| Material Flammability Rating | UL94 V-2 |
| Stripping Length | 8mm |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
The substitute part Phoenix Contact 2906837 is identified based on the following substitution criteria:
Voltage Compatibility: The main part operates at 24V UL. The substitute part (TTC-6-MOV-C-24DC-UT-I) is rated for 21VAC and 30VDC continuous operating voltage, providing voltage compatibility within the 24V operating range.
Circuit Protection Function: Both components incorporate protective elements. The main part includes integrated varistor protection. The substitute part is classified as a Transient Voltage Suppressor (TVS) module, providing transient protection at the same voltage level.
Manufacturer Consistency: Both parts are manufactured by Phoenix Contact, ensuring design philosophy and quality standards alignment.
Compliance Standards: Both components carry RoHS compliance certifications, meeting environmental and regulatory requirements for equivalent deployment.
Parameter Comparison
| Parameter | 2794958 (Main Part) | 2906837 (Substitute) |
|---|---|---|
| Manufacturer | Phoenix Contact | Phoenix Contact |
| Category | Terminal Blocks | Transient Voltage Suppressors (TVS) |
| Voltage Rating | 24V UL | 30VDC / 21VAC |
| Protection Feature | Varistor | Transient Voltage Suppression |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Operating Temperature | Not specified | -40°C ~ 85°C |
| Mounting Type | Not specified | DIN Rail |
Engineering Selection Recommendations
Product Status Consideration: The main part 2794958 is obsolete. The substitute part 2906837 maintains active product status with Phoenix Contact, ensuring ongoing availability and manufacturer support.
Compliance Alignment: Both components meet RoHS requirements. The substitute part carries ROHS3 compliance, representing current regulatory standards. Both components are classified under EAR99 export control designation.
Voltage Operating Range: The substitute part's 30VDC rating provides adequate margin above the 24V UL specification of the main part, ensuring safe operation within the original system voltage parameters.
Functional Equivalence: While the main part functions as a terminal block with integrated varistor protection, the substitute part provides dedicated transient voltage suppression. Selection depends on whether the application requires terminal block connectivity or standalone circuit protection at the 24V level.
Frequently Asked Questions (FAQ)
Q: Can the 2906837 directly replace the 2794958 in all applications?
A: The 2906837 is functionally equivalent for voltage protection at 24V. However, the 2794958 is a terminal block connector with 3 positions and screw termination, while the 2906837 is a DIN rail-mounted TVS module. Direct replacement requires that the application architecture supports DIN rail mounting and does not depend on the 3-position terminal block connectivity.
Q: What is the voltage protection level difference between these parts?
A: The 2794958 includes integrated varistor protection at 24V. The 2906837 provides transient voltage suppression with a protection level (VP) of 160V and continuous operating voltage of 30VDC, offering broader transient protection capability.
Q: Are both parts RoHS compliant?
A: Yes. The 2794958 is RoHS Compliant. The 2906837 is ROHS3 Compliant, representing the current RoHS directive iteration.
Q: What is the inventory status for these parts?
A: The 2794958 has 758 pieces in stock as new original inventory. The 2906837 has 909 pieces in stock as new original inventory. Both are available for immediate sourcing.
Q: Does the substitute part support the same wire gauge range?
A: The 2794958 supports 10-26 AWG (0.2-4mm²) wire gauges. The 2906837 is a TVS module without wire gauge specifications, as it is not a terminal block connector. Wire gauge compatibility depends on the terminal block selected to work with the 2906837 in the system design.
Q: What is the operating temperature range for the substitute?
A: The 2906837 operates across -40°C to 85°C. The main part 2794958 does not specify an operating temperature range in the provided parameters.
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