sepam 20 user manual - Schneider Electric

DE80118
DE80119
Installation CSH30 interposing ring CT
PCRED301005EN - 06/2008
turns
turns
turns
turns
PE50033
Connection
The CSH30 is adapted for the type of current transformer, 1 A or 5 A, by
the number of turns of the secondary wiring through the CSH30 interposing ring CT:
b 5 A rating - 4 turns
b 1 A rating - 2 turns
Connection to 5 A secondary circuit Connection to 1 A secondary circuit
1. Plug into the connector.
2. Insert the transformer secondary wire
through the CSH30 interposing ring CT
4times.
PE50034
1. Plug into the connector.
2. Insert the transformer secondary wire
through the CSH30 interposing ring CT
twice.
Connection to Sepam series 20 and Sepam series 40
To residual current I0 input, on connector A , terminals 19 and 18 (shielding).
Connection to Sepam series 80
b To residual current I0 input, on connector E , terminals 15 and 14 (shielding)
b To residual current I'0 input, on connector E , terminals 18 and 17 (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 < 100 mΩ/m (30.5 mΩ/ft)
b Minimum dielectric strength: 1000 V (700 Vrms)
b Maximum length: 2 m (6.6 ft).
It is essential for the CSH30 interposing ring CT to be installed near Sepam
(Sepam - CSH30 link less than 2 m (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.
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