This data-driven report distills key dimensions, materials, and mechanical ratings for the 221-539 mounting carrier. Designed for 10-conductor assemblies, it synthesizes datasheet fields into actionable checkpoints for industrial specification and factory acceptance testing.
Product Overview & Technical Purpose
Definition: The 221-539 is a purpose-built carrier for 10-position wire-splicing assemblies, integrating molded strain-relief to secure conductors. It converts free-standing splices into fixed, serviceable assemblies for control cabinets and junction boxes.
Physical & Material Specifications
| Parameter | Value | Units | Test Method |
|---|---|---|---|
| Overall Length | 38.3 | mm | Caliper / Datasheet |
| Per-position Pitch | 3.8 | mm | Dimensional Drawing |
| Height | 12.5 | mm | Sectional View |
| Flammability Rating | UL94 V-0/V-2 | — | Material Cert |
| Mounting Footprint | DIN-35 / Screw | — | Mounting Spec |
Installation & Variant Mapping
Efficient SKU selection depends on mapping position counts and mounting styles. The 221-539 represents the high-density end of the carrier family.
| Carrier Code | Positions | Mounting Style | Standard Color |
|---|---|---|---|
| 221-539 | 10 | DIN-rail / Screw | Orange / Black |
| 221-500 | 5 | Screw | Blue / Grey |
Technical FAQ & Compliance
How do I specify dimensions for the 221-539 mounting carrier?
Specify based on the 38.3mm overall length, 3.8mm per-position pitch, and 12.5mm height. Ensure the footprint matches DIN-35 rail or standard screw spacing for enclosure compatibility.
What are the electrical and conductor limits for this 10-way carrier?
The carrier supports up to 10 conductors with cross-sections typically up to 4 mm² (12 AWG). Always verify the rated voltage and current of the specific splicing connectors being housed within the carrier.
What mounting options are supported for the 221-539?
It supports dual-mode installation: snapping onto standard DIN-35 rails for cabinet builds or direct screw-mounting to panels via integrated mounting flanges for high-vibration environments.
What inspection steps should be performed during field installation?
Commissioning should include: 1. Visual inspection of conductor insertion depth. 2. Manual pull-test to verify strain-relief engagement. 3. Verification of DIN-rail clip locking or screw torque settings.
Summary Checklist
- Verify overall length (38.3mm) against panel layout clearances.
- Confirm conductor capacity (10-way / 4 mm²) aligns with wiring schedule.
- Document strain-relief pull-out forces for QA compliance records.
- Specify exact part codes to ensure color and mounting style consistency.
