146 SQ
Electrical connections addendum
REMEMBER: This document is a complement of IOM and it is designed to be used with.
1) Over-current protection
WARNING: each unit must be provided with individual dedicated upstream over-current protection (not sup-
plied by Manufacturer).
SQ Casettes
Upstream over-current protection for units without heaters
UNIT SIZE
FUSE
PROTECTION TYPE
FUSE SIZE
FOR UNITS WITH
-
OUT HEATERS
[AMPS]
FUSE SIZE
FOR UNITS WITH
HEATERS
[AMPS]
SQ 20 EC
gG
1 8
SQ 30 EC 1 16
SQ 40 EC 1 12
SQ 50 EC 1 16
SQ 60 EC 1 16
SQ 70 EC
1 16
2) Terminal block connectors
Screw clamp terminal connector types:
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