---
kind: "section"
citation: "46 C.F.R. § 113.20-3"
title: "46"
number: "113.20-3"
heading: "Connection boxes."
url: "https://uscodex.org/cfr/46/113.20-3"
---

# §113.20-3. Connection boxes.


Each connection box and each switch enclosure in an automatic sprinkler system must be constructed in accordance with Type 4 or 4X of NEMA 250 or IP 56 of IEC 60529:2013 (both incorporated by reference; see [46 CFR 110.10-1](/cfr/46/110.10-1.md)) requirements.


## Notes

### Amendments

[USCG-2003-16630, 73 FR 65201, Oct. 31, 2008, as amended by USCG-2020-0075, 88 FR 16369, Mar. 16, 2023]

### Authority

Authority: 46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.2.

### Source

Source: CGD 74-125A, 47 FR 15272, Apr. 8, 1982, unless otherwise noted.

### Amendments

[USCG-2003-16630, 73 FR 65201, Oct. 31, 2008, as amended by USCG-2020-0075, 88 FR 16369, Mar. 16, 2023]