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© 2007 Schneider Electric. All Rights Reserved.
63230-216-229-B1
Installation
CSH30 Interposing Ring CT
Connection
The CSH30 is adapted for the type of current transformer by the number of turns of
the secondary wiring through the CSH30 interposing ring CT:
b 5A rating: 4 turns
b 1A rating: 2 turns
5A secondary circuit connection 1A secondary circuit connection
PE50033
PE50034
1 Plug into the connector.
2 Insert the transformer secondary wire
through the CSH30 interposing ring
CT four times.
1 Plug into the connector.
2 Insert the transformer secondary wire
through the CSH30 interposing ring
CT two times.
DE80125
Connection to Sepam™ Series 80
b To residual current Ir input, on connector , terminals 14 and 15 (shielding)
b To residual current I'r input, on connector , terminals 17 and 18 (shielding)
Recommended Cable
b Sheathed cable, shielded by tinned copper braid
b Minimum cable cross-section: 0.93 mm²
(AWG 18) (max. 2.5 mm², AWG 12)
b Resistance per unit length: less than 100 mΩ/m (30.5 mΩ/ft)
b Minimum dielectric strength: 1000 V (700 Vrms)
b Maximum length: 2 m (6.6 ft).
The CSH30 interposing ring CT must be installed near Sepam™ (Sepam™ - CSH30
link less than two meters (6.6 ft) long).
Flatten the connection cable against the metal frames of the cubicle. The connection
cable shielding is grounded in Sepam™. Do not ground the cable by any other
means.
DE80126
turns
turns
c
b
a
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