Phoenix Contact 2905337 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2905337 is a plug-in surge arrester designed for two-phase power applications. This Type 2 transient voltage suppressor operates at 350VAC continuous and provides circuit protection through transient voltage suppression. The device is actively manufactured and widely stocked, with 835 units available in inventory. Finding equivalent or substitute parts may be necessary for supply chain optimization, regional availability, or specific application requirements where alternative form factors or enhanced specifications are beneficial.

Substiute Parts

2905337

Phoenix ContactIn Stock: 8552905337 Datasheet

Current PartRFQ

SPD2-350-2P0-R

LittelfuseIn Stock: 795SPD2-350-2P0-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2905337 is determined by the following critical parameters:

• Voltage - Continuous Operating (Max) (MCOV): Must be 350VAC
• Current - Discharge (Nom) (8/20µS): Must be 20 kA minimum
• Mounting Type: Must be DIN Rail
• Category: Must be Transient Voltage Suppressors (TVS)
• RoHS Compliance: Must maintain ROHS3 Compliant status

The Littelfuse SPD2-350-2P0-R meets these core substitution criteria. While it operates as a Type 1+2 combination module with enhanced specifications in certain parameters, it maintains electrical compatibility at the 350VAC operating level and provides equivalent or superior protection performance.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 2905337 and Littelfuse SPD2-350-2P0-R are active products with current manufacturing status and full regulatory compliance. Selection between these parts should be based on the following factors:

The Phoenix Contact 2905337 is supplied as a Base + Module configuration with single-pole protection. The Littelfuse SPD2-350-2P0-R is supplied as a Module Only configuration with dual-pole protection and includes Type 1 protection in addition to Type 2. Both devices maintain ROHS3 compliance and are approved by recognized certification bodies (CB, cUR, cURus, EAC, UR for Phoenix Contact; cURus, UL, VDE for Littelfuse).

The Littelfuse substitute offers higher maximum discharge current (50 kA versus 40 kA) and higher short-circuit rating capability (200 kA versus 50 kA), providing enhanced protection margins. The operating temperature range of the Phoenix Contact part extends to 85°C compared to 80°C for the Littelfuse part. Form factor differences (Base + Module versus Module Only) and pole configuration (1 pole versus 2 poles) must be evaluated against specific installation requirements.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse SPD2-350-2P0-R directly replace the Phoenix Contact 2905337?

A: Direct replacement is possible from an electrical standpoint, as both devices operate at 350VAC with 20 kA nominal discharge current and maintain DIN Rail mounting compatibility. However, the form factor differs (Base + Module versus Module Only) and the pole configuration differs (1 pole versus 2 poles), requiring verification of mechanical fit and circuit topology compatibility.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are Voltage - Continuous Operating (Max) at 350VAC, Current - Discharge (Nom) at 20 kA, and Mounting Type as DIN Rail. Both parts meet these requirements. Additional considerations include maximum discharge current, short-circuit rating, and operating temperature range.

Q: Are there differences in protection type between these parts?

A: The Phoenix Contact 2905337 is Type 2 only. The Littelfuse SPD2-350-2P0-R provides both Type 1 and Type 2 protection, offering broader transient suppression coverage. Type 1 protection addresses lightning and switching surges, while Type 2 addresses internal surges.

Q: What is the significance of the pole configuration difference?

A: The Phoenix Contact part provides single-pole protection, while the Littelfuse part provides dual-pole protection. The application circuit topology determines whether single or dual-pole protection is required. Dual-pole protection is suitable for two-phase power applications.

Q: Do both parts meet the same regulatory standards?

A: Both parts are ROHS3 compliant and REACH unaffected. The Phoenix Contact part carries CB, cUR, cURus, EAC, and UR approvals. The Littelfuse part carries cURus, UL, and VDE approvals. Specific application requirements may dictate which certification set is necessary.