Weidmüller part number 1200920000 (KTB QL 916115 S4E3) is a Klippon® TB QL heavy-duty stainless steel enclosure from the Quarter Lock range, built for demanding industrial and hazardous-area installations. The QL series uses a quick quarter-turn lock for fast, tool-assisted lid access. This variant measures 914 x 610 x 150 mm and is supplied with 3 gland plates, positioned on the bottom, left and right sides.
Technical Specifications
Dimensions and Housing
- Overall size (H x W x D): 914 x 610 x 150 mm
- Net weight: approx. 24.1 kg (3 gland-plate configuration)
- Housing type: Klippon® TB QL – Quarter Lock, seamless welded construction
- Gland plates: 3, positioned bottom, left and right, thickness 3 mm as standard (up to 20 mm available on request)
Material and Protection Rating
- Material: stainless steel 1.4404 (316L), electropolished, silver finish (S4E variant)
- Protection rating: IP66
- NEMA rating: 3, 4X, 12
- Gasket: silicone, rated for extreme temperature requirements
- Operating temperature range: -60°C to +135°C
- Impact resistance: 7 J (ATEX applications), 10 J (industrial applications)
Lid, Locking and Access
- Lid opening: fully removable, 130° opening angle
- Lid fixing: quarter-turn lock with slotted insert as standard (other lock inserts available on request)
- Earth stud fitted to body and lid
- Recommended torque for lid and gland plate screws: 2.5 Nm
Mounting, Earthing and Cable Entry
- Equipment mounting: 4–6 internal mounting pillars with M6 threaded holes for mounting plates or terminal rail
- Enclosure mounting: 4 welded-on mounting feet with 11 mm holes (2 slotted, 2 cross-shaped)
- Internal earthing: welded-on M6 stainless steel earth stud (body and lid)
- External earthing: continuous M10 brass earthing stud (stainless steel option available)
- Cable entry capacity: from M12 up to M75, varying by side (A/B/C/D)
Terminal Capacity
This size supports high-density terminal assembly, for example:
- 2.5 mm²: up to 8 rows x 102 terminals (horizontal)
- 6 mm²: up to 7 rows x 64 terminals
- 16 mm²: up to 5 rows x 43 terminals
- 35 mm²: up to 4 rows x 32 terminals
Applications
The Klippon® TB QL range is designed for harsh environments and hazardous area locations, including explosive risk zones, process and energy industry installations, oil and gas, chemical plants, and offshore/onshore facilities, where a quick quarter-turn lock is preferred over a hinged lid.
Related Weidmüller Products
- KTB QL 916115 S4E1 (same size, 1 gland plate) – Order No. 1200890000
- KTB QL 916115 S4E2 (same size, 2 gland plates) – Order No. 1200910000
- KTB QL 916115 S4E4 (same size, 4 gland plates) – Order No. 1200930000
- KTB QL 916120 S4E3 (same footprint, 200 mm depth, 3 gland plates) – Order No. 1200970000
- KTB QL 987420 S4E3 (larger size, 980 x 740 x 200mm, 3 gland plates) – Order No. 1201030000
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