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HomeProductsConnectors, InterconnectsTerminal Blocks - Barrier Blocks430611-15-0
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430611-15-0 - Curtis Industries

Manufacturer Part Number
430611-15-0
Manufacturer
Curtis Industries
Allelco Part Number
98D-430611-15-0
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
30,392 pcs available, New & Original
Parts Description
CONN BARRIER STRP 15CIRC 0.438"
Package
Bulk
Data sheet
430611-15-0.pdf

Environmental Information

Curtis Industries REACH.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 30392
  • Unit Price: $9.791
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $9.791 $9.79
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

430611-15-0 Tech Specifications
Curtis Industries - 430611-15-0 technical specifications, attributes, parameters and parts with similar specifications to Curtis Industries - 430611-15-0

Product Attribute Attribute Value
Manufacturer Curtis Industries
Wire Gauge 12-22 AWG
Voltage Rating 600V
Top Termination Screws
Terminal Screw Material -
Terminal Screw Finish -
Terminal Block Type Barrier Block
Series 43000
Pitch 0.438' (11.12mm)
Package Bulk
Operating Temperature 105°C
Number of Wire Entries 15
Product Attribute Attribute Value
Number of Rows 1
Number of Circuits 15
Mounting Type Chassis, Panel; Through Hole
Material Flammability Rating UL94 V-0
Material - Insulation Polypropylene (PP)
Features Flange
Current Rating (Amps) 20A
Color -
Bottom Termination Wire Wrap
Base Product Number 430611
Barrier Type 2 Wall (Dual)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.90.4000

Frequently Asked Questions(FAQ)

What wire gauges can I safely terminate into the 430611-15-0 barrier block, and how does the 12-22 AWG specification affect my panel layout?
The 430611-15-0 supports 12-22 AWG wire termination across all 15 circuits, enabling flexible design choices for mixed-voltage or mixed-current distribution scenarios. The 12 AWG upper limit accommodates 20A branch circuits at standard copper resistivity, while the 22 AWG lower limit suits low-voltage signal lines or auxiliary control wiring. When designing multi-tier power distribution panels, confirm that your largest conductors (12 AWG) are pre-stripped to approximately 3/8" before insertion into the screw terminals on the 430611-15-0. Smaller gauges (18-20 AWG) are typical for auxiliary loads and fit easily within the same device. Mixing gauges within a single 430611-15-0 block is common practice and does not degrade performance, provided each circuit's total load remains under 20A.
How does the dual-wall 2 Wall barrier design on the 430611-15-0 compare to single-wall barriers for noise immunity in industrial control panels?
The 430611-15-0 features 2 Wall (dual) barriers between adjacent circuits, creating physical and electrical isolation that reduces crosstalk and radiated coupling between high-current and low-voltage signal lines. In industrial environments, dual-wall barriers on the 430611-15-0 provide measurable attenuation of conducted transients between neighboring circuits—particularly when power and signal share the same block. Single-wall designs (often found in lower-cost alternatives) offer reduced isolation; they are acceptable for loosely coupled applications but may introduce EMI issues in mixed-signal layouts. The 430611-15-0's dual construction also simplifies compliance with IEC 61800-3 Category 3 requirements in variable-frequency drive (VFD) installations, where power and control signals must coexist without performance degradation.
What is the practical current distribution limit across all 15 circuits of the 430611-15-0 when operating at 105°C ambient temperature?
Each circuit on the 430611-15-0 is rated for 20A continuous at nominal ambient temperatures. At the maximum rated operating temperature of 105°C, sustained current through copper and brass terminals increases contact resistance by approximately 15-20% compared to 25°C baseline, but the 430611-15-0 maintains its 20A per-circuit rating because the design includes thermal margin in the screw clamp force and terminal geometry. In practice, if you operate the 430611-15-0 at full ambient temperature with all 15 circuits simultaneously carrying 20A (300A total system current), the block will reach steady-state internal temperatures 15-25°C above ambient due to I²R heating. This heating is manageable with standard DIN rail-mounted heat dissipation; however, avoid bundling high-current cables immediately exiting the 430611-15-0, as this traps heat and may locally exceed the polypropylene insulation rating. Monitor contact temperature if four or more circuits operate continuously above 15A.
How does the 0.438" pitch on the 430611-15-0 affect panel space allocation compared to industry-standard 0.5" barriers?
The 430611-15-0 uses a 0.438" (11.12mm) circuit pitch, which is 0.062" tighter than traditional 0.5" spacing found in many Molex or TE Connectivity alternatives. This compact spacing allows a 15-circuit 430611-15-0 block to occupy approximately 6.25 inches of linear DIN rail space, versus 7.25 inches for equivalent 0.5" pitch blocks. In space-constrained panel designs, the 430611-15-0's pitch enables higher circuit density without requiring a second terminal block row. However, the tighter spacing on the 430611-15-0 demands more careful wire routing and management—larger 12 AWG conductors require wider bend radius at the entry point, and bundled exit cables must be fanned before securing to avoid mechanical stress on insulation at neighboring terminals.
What termination workflow should I follow for reliable screw-terminal connection on the 430611-15-0 to avoid intermittent contacts?
The 430611-15-0 employs screw termination on the top (panel-facing) side and wire-wrap capability on the bottom. For each circuit, insert the stripped conductor (3/8" exposed copper recommended) into the screw terminal block and tighten the screw to finger-tight plus one additional 1/4 turn—approximately 8-12 in-lbs torque. Over-tightening damages the polypropylene insulation block on the 430611-15-0; under-tightening allows micro-motion under thermal cycling, creating intermittent faults. After initial installation, perform a pull test on each wire to confirm retention. The wire-wrap bottom termination feature on the 430611-15-0 is primarily for PCB integration during manufacturing; field terminations should use the screw top entry. Verify continuity across each completed circuit of the 430611-15-0 with a multimeter set to resistance mode before applying load—a reading above 0.1 ohm suggests loose termination requiring re-seating.
Is the 430611-15-0 suitable for use in UPS and backup power distribution, or should I specify redundant blocks?
The 430611-15-0 is fully qualified for UPS and backup power distribution at its 600V and 20A ratings. However, UPS architectures typically require redundant distribution to maintain service during maintenance or block failure. A common practice is to deploy two 430611-15-0 blocks in parallel, each carrying 50% of the total system load, with each block independently fused or breaker-protected. This topology allows one 430611-15-0 block to be removed for inspection or replacement without interrupting UPS output. For critical single-block deployments, the 430611-15-0 includes UL94 V-0 polypropylene insulation, which self-extinguishes after ignition source removal, meeting fire safety requirements for enclosed cabinet installations. Verify that your UPS architecture includes backup contactor logic to isolate the 430611-15-0 during over-current events—the block itself has no built-in protection device.
How do I verify that the 430611-15-0 meets ROHS3 compliance in a project audit?
The 430611-15-0 carries a ROHS3 Compliant designation, confirming that terminal screw material, plating, and polypropylene base do not exceed maximum allowable concentrations (MACs) for lead, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers. When documenting design compliance, reference the manufacturer's ROHS3 certificate (available through Curtis Industries technical support) which provides material composition by part number. The 430611-15-0's flange and screw hardware must also comply; if your project requires lead-free solder compatibility for downstream connections, confirm that the 430611-15-0 is specified for lead-free wave or reflow processes if board-mount integration is planned. REACH compliance on the 430611-15-0 shows REACH Unaffected status, meaning no Substances of Very High Concern (SVHCs) are present, simplifying EU market documentation.
What mounting options does the 430611-15-0 provide, and how do flange-mounted variants affect thermal performance?
The 430611-15-0 supports Chassis and Panel mounting with a Through Hole footprint and integrated flange. The flange design allows the 430611-15-0 to be secured directly to a flat DIN rail or panel surface using standard M4 fasteners; this mounting method simplifies field installation and allows quick block removal without soldering or desoldering. Flange-mounted orientation on the 430611-15-0 should position the connector entry upward or to the side (not downward) to prevent sump drainage of condensation into the screw terminals. When the 430611-15-0 is mounted in a confined enclosure with limited air circulation, the flange provides mechanical stability but does not improve cooling; in high-ambient or continuous 20A operation scenarios, ensure 2-3 inches of vertical clearance above the 430611-15-0 for convective heat dissipation.
How does the MSL 1 (Unlimited) rating on the 430611-15-0 simplify supply chain and storage logistics?
The 430611-15-0 carries Moisture Sensitivity Level (MSL) 1, which designates Unlimited shelf life without special storage conditions. Unlike MSL 3 or higher components (which require dry-box storage after initial exposure), the 430611-15-0 can be stored in standard warehouse conditions at room temperature and humidity without risk of moisture absorption degrading electrical performance. This MSL 1 classification reduces procurement complexity for stocked inventory—no desiccant packs, humidity meters, or bake-out procedures are required before installation. For field service and emergency panel repairs, having the 430611-15-0 on shelf with MSL 1 status ensures immediate availability without shelf-life concerns, reducing mean-time-to-repair (MTTR) for power distribution panel maintenance.
What is the expected lifespan of the screw termination on the 430611-15-0 under thermal cycling and vibration?
The 430611-15-0 screw terminal design relies on brass contact fingers and polypropylene block compression to maintain clamping force. Under typical industrial thermal cycling (–10°C to +60°C ambient variation), the 430611-15-0 experiences differential expansion between the polypropylene base and metal screws, with polypropylene having approximately 10x higher thermal expansion coefficient than brass. This mismatch requires periodic retightening during the first 100-200 operational hours; thereafter, contact stability depends on baseline screw torque and absence of external vibration. In fixed installations, the 430611-15-0 typically operates reliably for 10+ years without maintenance. In mobile or high-vibration environments (vehicles, marine, industrial machinery), quarterly tightness verification is recommended to prevent intermittent faults caused by vibration loosening.
How does the 430611-15-0 compare to modular rail-mounted alternatives when designing for future circuit expansion?
The 430611-15-0 is a fixed 15-circuit block with no modular expansion capability; future circuit additions require installing an additional terminal block adjacent to the existing 430611-15-0. By contrast, rail-mounted modular systems (such as Weidmüller or Phoenix Contact variants) allow individual circuit modules to be added incrementally without replacing the entire block. For applications with high likelihood of field upgrades, modular systems offer lower total lifecycle cost despite higher per-circuit initial expense. However, if your design is final and circuit count is frozen, the 430611-15-0 offers superior cost-per-circuit and faster prototyping compared to modular alternatives. Hybrid architectures are also common: install a primary 430611-15-0 block for core circuits, then reserve space on the DIN rail for a second block to be added if load growth occurs.
What fault isolation and diagnostics can I perform directly on the 430611-15-0 in a live panel?
The 430611-15-0 has no built-in status indicators, requiring external multimeter testing for diagnostics. With power applied, use an insulated multimeter probe to measure voltage at each circuit's screw terminal against a known ground reference; a reading of zero (when the circuit should be live) indicates a loose termination, failed upstream component, or failure within the 430611-15-0 block itself. Disconnect power and measure individual terminal resistance; a reading above 1 ohm per connection (or infinite resistance) indicates corrosion or loose termination requiring re-seating of the 430611-15-0 conductor. If multiple circuits on the 430611-15-0 show simultaneous faults, suspect a manufacturing defect or installation damage (e.g., cracked polypropylene base). A continuity check between screw terminals and the flange mounting surface should show infinite resistance; finite resistance suggests internal short circuit requiring block replacement. Implement series fuses or circuit breakers upstream of each 430611-15-0 circuit to limit fault propagation and simplify isolation.
How should I document the 430611-15-0 in schematic and panel drawings to ensure installation accuracy and compliance?
In schematic diagrams, represent each circuit of the 430611-15-0 with a distinct terminal designation (e.g., TB1.1 through TB1.15 for a primary block) and cross-reference to a terminal list that includes wire gauge, rated current, and destination component. On panel layout drawings, annotate the 430611-15-0 physical footprint with mounting hole locations (typically 4mm clearance for M4 fasteners), wire entry orientation (top for screw termination, bottom for wire wrap if used), and 0.438" circuit pitch spacing to guide assembly. Include a note specifying 8-12 in-lbs screw torque and requiring verification testing before energization. In compliance documentation, reference the manufacturer part number 430611-15-0, UL94 V-0 rating, and ROHS3 status to satisfy audit requirements. Store assembly drawings in a revision-controlled system accessible to field technicians during maintenance; this prevents incorrect wire re-termination after block removal.

Parts with Similar Specifications

The three parts on the right have similar specifications to Curtis Industries 430611-15-0

Product Attribute 430611-12-0 430611-18-0 430611-14-0 430611-10-0
Part Number 430611-12-0 430611-18-0 430611-14-0 430611-10-0
Manufacturer Curtis Industries Curtis Industries Curtis Industries Curtis Industries
Number of Rows - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Material - Insulation - - - -
Terminal Screw Finish - - - -
Material Flammability Rating - - - -
Wire Gauge - - - -
Bottom Termination - - - -
Number of Circuits - - - -
Terminal Screw Material - - - -
Features - - - Simultaneous Sampling
Pitch - - - -
Current Rating (Amps) - - - -
Terminal Block Type - - - -
Color - - - -
Top Termination - - - -
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Wire Entries - - - -
Barrier Type - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage Rating - - - -

430611-15-0 Datasheet PDF

Download 430611-15-0 pdf datasheets and Curtis Industries documentation for 430611-15-0 - Curtis Industries.

Datasheets
Terminal Blocks Catalog.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf
Environmental Information
Curtis Industries REACH.pdf

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Curtis Industries

430611-15-0

Curtis Industries
98D-430611-15-0

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