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UL 437

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MartinHewitt

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Post Wed Dec 19, 2018 1:47 am

UL 437

I have seen in UL 437 and in an Australian standard, that there are UL 437 type 1 and type 2 locks. ( https://standardscatalog.ul.com/standar ... dard_437_8 ) Key locks are either just labeled "UL 437" or "UL type 2". I didn't find anything on what type 1 or type 2 is. Does someone here know something?

PS: Combination locks are advertised as "UL Type 1", but I have read that this UL is not 437 but 2000 something. That makes sense, because 437 is for a key lock and not a combination lock.
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Josephus

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Post Wed Dec 19, 2018 10:30 pm

Re: UL 437

Everything I have ever read indicates that 437 doesn't have groups and covers keyed locks. 768 is the one that has two groups and is for combination locks. There's more for lots of stuff with some overlap.

Perhaps they copied over some requirements. Other derivative standards from ANSI and BHMA don't mention grouping coming from 437.
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MartinHewitt

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Post Wed Dec 19, 2018 10:54 pm

Re: UL 437

From above link:
1 Scope
1.1 These requirements cover key locks categorized as follows and defined in Glossary, Section 3:
a) Cabinet locking cylinders,
b) Door locks,
c) Locking cylinders,
d) Security container key locks, Type 1 and Type 2, and
e) Two-key locks.

Also AS/NZS 3809-1:1998 distinguishes in table 10 "Lock requirements for strongrooms and strongroom doors" under "Lock class in accordance with UL" between "Keylock 437 (Type 2)" for lower class strongrooms and "Keylock 437 (Type 1)" for higher classes.
And dormakaba states about the La Gard 2270 "UL Type 2" instead of "UL Group 2" for a combination lock.
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