IEC 60297-3-102:2004

Overview

IEC 60297-3-102:2004 specifies the additional mechanical interface dimensions for injector/extractor handles used with 482.6 mm (19 in) subracks and plug-in units. It does not redefine subrack or plug-in unit dimensions (those are in IEC 60297-3-101); instead it provides the complementary dimensions and clearances required for reliable front-panel and printed-board mounted injector/extractor devices. The standard covers two handle types: Type A (front-panel mounted) and Type B (printed-board mounted), and clarifies where these devices create incompatibilities with the baseline 19 in series.

Key Topics

• Scope and purpose
  • Defines only the additional interface dimensions required for injector/extractor devices used with IEC 60297-3-101 subracks and plug-in units.
  • May be used together with IEC 60297-3-103 (keying and alignment pin).
• Handle arrangements
  • Type A: front-panel mounted injector/extractor - includes subrack aperture requirements and plug-in unit interface limits. Type A arrangements can render a subrack incompatible with IEC 60297-3-101 if fitted.
  • Type B: printed-board mounted injector/extractor - defines PCB keep-out areas and board-mounted receptacle clearances.
• Critical dimensions and notes
  • Subrack aperture height (H21) required for injector/extractor operation: 3U = 129.20 mm, 6U = 262.55 mm, 9U = 395.90 mm (as specified in Table 1).
  • Handle interface must not exceed pitch lines or intrude into the usable component area or subrack height separation plane.
  • Type B requires PCB keep-out areas (both sides) and prescribes mounting/spacing so that box-type plug-in units may be restricted if the full subrack width is occupied.
  • 3U boards may be fitted with one or two handles; 6U and 9U sizes shall be fitted with two handles.

Applications

This standard is directly applicable to:

• Mechanical designers and CAD engineers creating 19 in subracks, front panels and plug-in units that incorporate injector/extractor mechanisms.
• PCB designers integrating board-mounted handles and defining keep-out areas for components.
• Hardware manufacturers, rack integrators and system suppliers ensuring mechanical compatibility and reliable insertion/extraction operations.
• Procurement, compliance and quality assurance teams verifying conformity with IEC 60297 series mechanical interfaces.

Using IEC 60297-3-102 helps prevent mechanical interference, ensures consistent handle placement and clearance, and reduces field failures during module insertion/extraction.

Related Standards

• IEC 60297-3-101 - Subracks and associated plug-in units (primary reference for subrack dimensions)
• IEC 60297-3-103 - Keying and alignment pin (complementary interface guidance)
• IEC 60917-1 - Modular ordering practice for mechanical structures

Keywords: IEC 60297-3-102:2004, injector/extractor handle, 19 in (482.6 mm) series, subrack interface dimensions, plug-in unit, front-panel mounted, printed-board mounted, Type A, Type B.