Power Cabinet Doors Side-Mount Bend Hinge

For those wholesale sourcing cabinet door hinges from Yitai Lock for power cabinet or drawer cabinet builds, the Power Cabinet Doors Side-Mount Bend Hinge range gives a lot of flexibility — sixteen variants in total, covering different frame depths, door panel thicknesses, and mounting plate configurations across the CL803, CL901, CL903, and CL233 series. The front mounting plates across most models share a consistent 36 × 17.7 mm or 25 × 17.7 mm footprint with slot or round hole fixing, making it straightforward to select the right model based on your frame profile without needing to redesign the door panel layout.

Product model	Side-mounted Cabinet Hinge
Surface Treatment	Zinc Alloy
Optional materials	Black/Blue Sand
Usage	Suitable for various types of switch cabinets, control boxes, etc

Model Range and Series Overview

The Power Cabinet Doors Side-Mount Bend Hinge is organised into four series. The CL803 series covers three models — CL803A-25, CL803B-20, CL803B-25, and CL803D-25 — all in black zinc alloy, with front plate widths of either 36 mm or 39 mm depending on the model. The CL803A-25 uses a dual-screw front plate at 39 × 20 mm with 12 mm hole spacing; the CL803B and CL803D models use a 36 × 25 mm plate with slot fixing.

The CL901 series includes CL901B-17, CL901B-20, and CL901D-17, all with a 36 × 17.5 mm front plate and consistent 8 mm + 2.5 mm hole offset. The CL903 series is the largest group in the hinge range, with seven models including the CL903B-20, CL903B-20 Extended, CL903CB-20, CL903CD-20, CL903D-17, and CL903D-20 — covering both standard and extended frame depths. The CL233 rounds out the range in black zinc alloy, sand blue zinc alloy, and aluminum alloy, with a 39 × 20 mm front plate and 12 mm hole spacing similar to the CL803A-25.

Dimensions by Series

The CL803 series of the side-mount bend hinge spans an overall width of 18.5 mm to 23.5 mm and a height of 26 mm to 28.5 mm across its models. The CL803A-25 is 23 mm wide and 26 mm tall with a 22.5 mm inner depth; the CL803B-20 is 18.5 mm wide with a 16 mm inner depth; the CL803B-25 is 23.5 mm wide and 28.5 mm tall with a 16 mm inner depth; and the CL803D-25 is 23.5 mm wide and 26.5 mm tall with a 16.5 mm inner depth. All CL803 models have a 26 mm base width and a 20 mm tall mounting plate.

The CL901 series stands noticeably taller than the other models in the Power Cabinet Doors Side-Mount Bend Hinge range — all three come in at 39.5 mm overall height, with widths between 15.5 mm and 18.5 mm and a consistent 16.5 mm inner depth across the board.Base widths are 20 mm for CL901B-17, 20.5 mm for CL901B-20, and 21 mm for CL901D-17. The CL903 series spans a wider range — base widths from 48 mm to 73.8 mm on the extended model, with overall heights of 25.5 mm to 26 mm. The CL233 is 24.5 × 24.5 mm overall with a 22 mm inner depth, a 39.3 mm mounting plate, and 7.5 mm + 15 mm hole offset on the front plate.

Application Scenarios

The Power Cabinet Doors Side-Mount Bend Hinge is designed specifically for cabinet frames built on C-section steel profiles, which is the standard construction method for GGD electrical cabinets, second and third generation distribution cabinets, drawer cabinets, and power enclosures. The bent profile of the hinge body hooks over the C-section lip and the front plate screws onto the door panel face, which is the established installation method for this cabinet type and requires no modification to standard frame profiles.

Beyond the core GGD and power cabinet applications, this product also suits other industrial enclosures built on compatible C-section or similar bent steel frame profiles. The CL233 in sand blue zinc alloy is sometimes specified where the cabinet exterior uses a colour-coded hardware scheme, while the aluminum alloy CL233 variant is the lighter option for enclosures where weight is a consideration. The range of model sizes across CL803, CL901, and CL903 means most standard frame depths and door panel thicknesses in the GGD and power cabinet market are covered within a single product family.

FAQ

Q1: What series are included in this hinge range? 

The range covers four series: CL803 (four models), CL901 (three models), CL903 (seven models), and CL233 (three variants). All are black zinc alloy except the CL233, which is also available in sand blue zinc alloy and aluminum alloy.

Q2: What cabinet types is this hinge designed for? 

The side-mount bend hinge is designed for C-section profile cabinet frames, including GGD electrical cabinets, second and third generation distribution cabinets, drawer cabinets, and power enclosures. It is not intended for flat-frame or welded enclosure types.

Q3: How is this hinge installed?

All models are screw-mounted. The bent hinge body hooks over the C-section frame lip and the front mounting plate is screwed to the door panel face. No welding is required.

Q4: What is the difference between the CL803, CL901, and CL903 series? 

The series differ in overall size, frame depth, and mounting plate configuration. CL901 models are the tallest at 39.5 mm overall height; CL803 models are more compact; CL903 models cover the widest range of base widths including an extended variant at 73.8 mm. Select based on your specific frame profile and door panel dimensions.

Q5: What makes the CL233 different from the other series? 

The CL233 is available in three variants — black zinc alloy, sand blue zinc alloy, and aluminum alloy — making it the only model in the range with a colour option and a lightweight material alternative. Its front plate dimensions (39 × 20 mm) are similar to the CL803A-25.

Q6: How do I choose the right model for my cabinet? 

Selection depends on your cabinet frame profile depth, door panel thickness, and mounting plate preference. The number suffixes (-17, -20, -25) and letter suffixes (A, B, D, CB, CD) are part of the model designation. Refer to the dimension drawings for each model or contact Yitai Lock with your frame specifications for a recommendation.

Q7: What material are the hinges made from?

Most models are black zinc alloy. The CL233 is additionally available in sand blue zinc alloy and aluminum alloy. Zinc alloy construction gives good dimensional consistency from die casting and handles standard indoor industrial cabinet environments well.

Q8: Is the CL903B-20 Extended suitable for deeper frame profiles? 

Yes — the CL903B-20 Extended has a base width of 73.8 mm, which is considerably wider than the standard CL903B-20 at 48 mm. It is the right choice when the cabinet frame profile requires a longer hinge base to bridge a deeper C-section channel.