Chint Catalogue Infinity

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NM8 Thermal & Electronic Protection Relays

Thermal-magnetic Release • Thermal-magnetic release of NM8-250, 630 & 1250 breakers can be set to meet protection requirements • Ir = 1 - 0.8 x In, Ii = 10 - 5 x In

NM8-125 Frame

Adjustable setting of over-load protection a Adjustable setting of short-circuit protection or fixed b

• Electronic protection relays offer very selective characteristic settings, allowing close protection of loads

Ir = 1.0 - 0.4 x In

• Characteristic curve. NM8S-400, 630 (250A~630A)

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