Phoenix Contact 1755680 Terminal Block Plug – Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1755680 is a 12-position terminal block plug designed for unshrouded headers with 0.197" (5.00mm) pitch and 90° wire entry. This COMBICON PT series component features screw-rising cage clamp termination, rated for 10A at 630V (IEC) and 10A at 300V (UL), and accommodates wire gauges from 14–28 AWG (0.2–2.5mm²). The part is active in production with RoHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part is unavailable, when design requirements permit alternative pitch standards (5.08mm vs. 5.00mm), or when different wire entry orientations (180° vs. 90°) are functionally acceptable within the application circuit.

Key Parameters

Parameter	Value
Manufacturer Part Number	1755680
Manufacturer	Phoenix Contact
Category	Terminal Blocks
Number of Positions	12
Pitch	0.197" (5.00mm)
Plug Wire Entry	90°
Termination Style	Screw – Rising Cage Clamp
Mounting Type	Free Hanging (In-Line)
Current – IEC	10A
Voltage – IEC	630V
Current – UL	10A
Voltage – UL	300V
Wire Gauge – AWG	14–28 AWG
Wire Gauge – mm²	0.2–2.5mm²
Color	Green
Contact Mating Finish	Tin
Housing Material	Polyamide (PA), Nylon
Material Flammability Rating	UL94 V-0
Torque – Screw	0.35–0.4 Nm (3.1–4.6 Lb-In)
Wire Strip Length	6mm
Insulation Height	0.518" (13.15mm)
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1755680 is determined by the following critical parameters:

Primary Substitution Criteria:

12-position configuration (fixed requirement)
Pitch tolerance: 0.197" (5.00mm) primary; 0.200" (5.08mm) acceptable as functional equivalent with minor mechanical tolerance
Wire entry orientation: 90° preferred; 180° acceptable if circuit layout permits
Termination method: Screw-based cage clamp systems (rising cage clamp or clamping yoke variants)
Current rating: Minimum 10A (IEC or UL)
Voltage rating: Minimum 300V (UL); 630V (IEC) preferred but not mandatory
Wire gauge compatibility: 14–28 AWG (0.2–2.5mm²) or broader range
Mounting: Free hanging (in-line) only
Housing material: Polyamide or polybutylene terephthalate (PBT)
Flammability: UL94 V-0 preferred for safety-critical applications

Substitute parts are grouped into two categories:

Molex Eurostyle ESE 39530 Series (0395300012, 0395300112, 0395305012, 0395305112): 5.08mm pitch, 180° wire entry, 15A UL rating, tin-plated copper alloy contacts, polyamide housing. These parts maintain electrical compatibility and mechanical interchangeability with minor pitch adjustment.
Weidmüller Unimate BLA and Omnimate BL Series (1282760000, 1357060000, 1948340000, 1949900000): 5.08mm pitch, 90° or 180° wire entry, higher current ratings (10–23A), clamping yoke termination, PBT housing with glass fill. These parts offer enhanced thermal and mechanical performance.

Parameter Comparison

Parameter	Phoenix Contact 1755680	Molex 0395300012	Molex 0395300112	Molex 0395305012	Molex 0395305112	Weidmüller 1282760000	Weidmüller 1357060000	Weidmüller 1948340000	Weidmüller 1949900000
Number of Positions	12	12	12	12	12	12	12	12	12
Pitch	5.00mm	5.08mm	5.08mm	5.08mm	5.08mm	5.08mm	5.08mm	5.08mm	5.08mm
Wire Entry	90°	180°	180°	180°	180°	180°	180°	90°	90°
Termination Style	Screw – Rising Cage Clamp	Screw – Rising Cage Clamp	Screw – Rising Cage Clamp	Screw – Rising Cage Clamp	Screw – Rising Cage Clamp	Screw – Clamping Yoke	Screw – Clamping Yoke	Screw – Clamping Yoke	Screw – Clamping Yoke
Current – UL	10A	15A	15A	15A	15A	10A	10A	20A	20A
Voltage – UL	300V	300V	300V	300V	300V	300V	300V	300V	300V
Wire Gauge – AWG	14–28	12–26	12–26	12–26	12–26	12–26	12–26	12–30	12–30
Color	Green	Black	Black	Green	Green	Orange	Orange	Black	Orange
Housing Material	Polyamide (PA)	Polyamide (PA)	Polyamide (PA)	Polyamide (PA)	Polyamide (PA)	PBT, Glass Filled	PBT, Glass Filled	PBT	PBT
Contact Material	Not Specified	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Contact Mating Finish	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Torque – Screw	0.35–0.4 Nm	0.56 Nm	0.56 Nm	0.56 Nm	0.56 Nm	0.4–0.5 Nm	0.4–0.5 Nm	0.4–0.5 Nm	0.4–0.5 Nm
Wire Strip Length	6mm	5mm	5mm	5mm	5mm	7mm	7mm	7mm	7mm
Insulation Height	13.15mm	15.00mm	15.00mm	15.00mm	15.00mm	15.19mm	15.19mm	14.10mm	27.20mm
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	Not Specified	RoHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected	Vendor Undefined	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Substitutes (90° Wire Entry, Preferred for Layout Compatibility):

Weidmüller 1948340000 and 1949900000 (Omnimate BL series) are the closest functional equivalents to the Phoenix Contact 1755680. Both maintain 90° wire entry orientation, support 12-position configuration, and feature screw-based termination. The 1948340000 (black, 20A UL) and 1949900000 (orange with mating flange, 20A UL) provide higher current capacity and are RoHS compliant with REACH unaffected status. Insulation heights differ (14.10mm and 27.20mm respectively), requiring mechanical clearance verification.

Secondary Substitutes (180° Wire Entry, Layout-Dependent):

Molex Eurostyle ESE 39530 series (0395300012, 0395300112, 0395305012, 0395305112) and Weidmüller Unimate BLA series (1282760000, 1357060000) are functionally equivalent but require 180° wire entry accommodation. Molex parts offer 15A UL rating with rising cage clamp termination and polyamide housing. Weidmüller Unimate BLA parts provide 17.5A IEC / 10A UL with clamping yoke termination and glass-filled PBT housing. All are RoHS compliant; REACH status varies (Molex 0395300112 and 0395305112 are REACH affected).

Compliance Considerations:

All substitute parts maintain RoHS compliance and tin-plated contact finishes. Phoenix Contact 1755680 and Weidmüller parts are REACH unaffected; Molex parts 0395300112 and 0395305112 are REACH affected. For applications requiring REACH unaffected status, select Weidmüller 1948340000, 1949900000, 1282760000, or 1357060000, or Molex 0395300012 and 0395305012.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 5.08mm pitch part for the 5.00mm Phoenix Contact 1755680?

A: Yes, within mechanical tolerance limits. The 0.08mm pitch difference (approximately 0.3%) is functionally acceptable for most applications. However, verify header compatibility and mating surface alignment before deployment. Weidmüller and Molex substitute parts with 5.08mm pitch are mechanically interchangeable with minor tolerance adjustment.

Q: What is the difference between 90° and 180° wire entry?

A: Wire entry angle defines the direction of conductor insertion relative to the plug body. 90° entry (Phoenix Contact 1755680, Weidmüller 1948340000, 1949900000) routes wires perpendicular to the mating face. 180° entry (Molex ESE 39530, Weidmüller Unimate BLA) routes wires parallel to the mating face. Selection depends on circuit board layout and available space. Substitution between these orientations requires circuit redesign.

Q: Are rising cage clamp and clamping yoke termination methods interchangeable?

A: Both are screw-based termination systems with equivalent electrical performance. Rising cage clamp (Phoenix Contact, Molex) uses a spring-loaded cage that rises as the screw tightens. Clamping yoke (Weidmüller) uses a tension sleeve mechanism. Torque specifications differ (Phoenix Contact 0.35–0.4 Nm vs. Molex 0.56 Nm vs. Weidmüller 0.4–0.5 Nm). Follow manufacturer torque recommendations for each part.

Q: Which substitute part has the highest current rating?

A: Weidmüller 1948340000 and 1949900000 (Omnimate BL series) support 20A at 300V (UL), compared to the Phoenix Contact 1755680 at 10A. Molex ESE 39530 series supports 15A at 300V (UL). For applications requiring higher current capacity, Weidmüller Omnimate BL parts are recommended.

Q: What is the significance of REACH affected vs. unaffected status?

A: REACH affected parts contain substances of very high concern (SVHC) requiring regulatory documentation and supply chain transparency. REACH unaffected parts contain no listed SVHC substances. For applications in regulated industries or export markets, REACH unaffected parts (Phoenix Contact 1755680, Weidmüller 1948340000, 1949900000, 1282760000, 1357060000, Molex 0395300012, 0395305012) are preferred.

Q: Can I use a substitute part with a different housing material?

A: Yes, if thermal and mechanical requirements are met. Phoenix Contact 1755680 uses polyamide (PA) housing. Molex ESE 39530 also uses polyamide. Weidmüller Unimate BLA uses glass-filled PBT (higher thermal stability, -50°C to 120°C). Weidmüller Omnimate BL uses PBT (standard or glass-filled). PBT variants offer superior temperature performance and mechanical rigidity. Verify operating temperature range and mechanical stress requirements before substitution.

Q: What is the wire gauge compatibility range for each substitute?

A: Phoenix Contact 1755680 accommodates 14–28 AWG (0.2–2.5mm²). Molex ESE 39530 series accommodates 12–26 AWG. Weidmüller Unimate BLA accommodates 12–26 AWG (0.2–2.5mm²). Weidmüller Omnimate BL accommodates 12–30 AWG (0.2–4mm²). Verify wire gauge compatibility with your application before substitution. Weidmüller Omnimate BL supports the broadest range.

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