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From compact HA inserts to modular HM systems, and H3A to H48B hoods and housings. Industry-standard dimensions make selection simple and replacement easy — with stock and fast delivery.
- 25
- Product series
- 1211+
- Catalog part numbers
- IP65
- Third-party tested protection
- 2014
- Established
Four product lines, one source
Inserts, housings, contacts, accessories and tools from one brand — no tolerance or compatibility issues from mixing suppliers.
Inserts
From 3 to 216 poles: miniature, standard, high-density, high-current and modular inserts with screw, spring and crimp termination.
Hoods & Housings
H3A to H48B hoods and housings: side or top entry, high construction, bulkhead and surface-mount bases, single or double lever.
Crimp Contacts
Male and female crimp contacts matched to each insert family, selected by wire cross-section.
Accessories & Tools
Hinged frames, coding elements, protective covers, crimping and extraction tools.
Featured Series
Why SZXBS
Standard sizes, drop-in replacement
Outline and mounting dimensions follow common industry sizes — no new cut-outs when replacing.
Complete range
From 3 to 200+ poles with screw, spring, crimp and modular options for mainstream applications.
Verified quality
Protection rating verified by an independent lab; products comply with RoHS restrictions.
Stock & fast delivery
Common part numbers are kept in stock; samples and small orders ship quickly.
Applications
Full product catalog — free download
Technical data, dimension drawings, pin layouts and panel cut-outs for every series — or download by series.
Know the part number? Find it fast
FAQ
What parts make up a heavy-duty connector?
A heavy-duty connector set usually consists of a male and a female insert, a hood and a housing (base), and contacts. Crimp inserts need separate crimp contacts; screw and spring inserts have the terminals built in. Choose the insert first (poles, current, voltage), then pick the hood and housing that fit the insert size.
Are SZXBS products interchangeable with other brands of the same size?
SZXBS inserts and housings follow the industry-standard outline and mounting dimensions, and part numbers map to the common sizes (for example, an HE-024 insert fits an H24B housing). Before switching in volume, we recommend checking the dimension drawings or testing samples.
What is the difference between IP65 and IP67?
Both are fully dust-tight (first digit 6). The "5" in IP65 means protection against water jets from any direction; the "7" in IP67 means protection against temporary immersion (1 m for 30 minutes under the standard test). IP65 suits most indoor and sheltered outdoor equipment; choose IP67 or higher where water can pool or equipment is hosed down. An SZXBS HE-024 sample was tested by an independent lab to GB/T 4208-2017 (equivalent to IEC 60529) and met IP65.
Screw, spring or crimp termination — which should I choose?
Screw termination needs no special tools and suits field wiring and maintenance. Spring (cage-clamp) termination is fast and vibration-resistant, good for volume assembly. Crimp termination requires a crimping tool, gives a reliable compact connection and is standard for high-density inserts and harness production.
What is the difference between PG and M cable-entry threads?
PG is the traditional German conduit thread; M is metric (e.g. M20, M25, M32). New designs generally use metric threads, while PG is mainly for replacing existing equipment. The housing entry thread must match the cable gland, and the gland is then chosen by the cable outer diameter.
How can I get samples, quotes and CAD drawings?
Send us the part numbers and quantities by phone or e-mail. Standard parts are usually in stock and samples ship quickly. Dimension drawings are shown on every product page, and the full PDF catalog is free to download from the Downloads page.