CQD5NEZ Series DC Isolator Switch

Product Features

■ DC1500V Application

Designed for DC systems with a rated operational voltage up to DC1500V.

■ Wide Current Range

Available from 80A to 630A with 315A and 630A frame sizes.

■Flexible Operation

Supports both front and side operation for different installation requirements.

■ Reliable Isolation

Provides circuit isolation for safe equipment maintenance and servicing.

■Flexible Installation

Supports both vertical and horizontal installation.

■ Harsh Environment Adaptability

Operating temperature from-40℃ to +85℃ and operating altitude up to 5000m.

	Code	Description
①	CQ	Enterprise Code
②	D	Isolator Switch
③	5	Design Code
④	NEZ	New Energy – DC
⑤	Frame Size	315 / 630
⑥	Rated Current	See rated current table
⑦	Operation	Z: Front operation / C: Side operation
⑧	Handle Type	K: Direct operating handle / P: External handle + extension shaft
⑨	Mounting	1: Vertical / 2: Horizontal / 3: Left vertical & right horizontal
⑩	Auxiliary Contact	2NO + 2NC

Operating Altitude	≤ 2500 m
Ambient Temperature	-40°C to +85°C
Derating	Required above +70°C
Storage Temperature	-40°C to +85°C
Relative Humidity	≤ 50% at +40°C; up to 90% at +20°C
Pollution Degree	3
Protection Degree	IP20 inside cabinet / IP65 outside cabinet
Pemasangan	Vertical or horizontal
Vertical Installation Inclination	≤ 5°

Parameter	CQD5NEZ-315	CQD5NEZ-630
Frame Size (A)	315	630
Rated Current In (A)	80, 100, 125, 160, 200, 225, 250, 275, 315	315, 325, 400, 500, 630
Number of Poles	2P	2P
Rated Operational Voltage Ue (V)	DC1500	DC1500
Rated Insulation Voltage Ui (V)	2000	2000
Rated Impulse Withstand Voltage Uimp (kV)	12	12
Rated Short-Circuit Making Capacity Icm (kA)	10	20
Rated Short-Time Withstand Current Icw	8kA/1s, 20kA/0.15s	10kA/1s, 20kA/0.15s
Mechanical Operations – Front	10000	10000
Mechanical Operations – Side	3000	3000
Electrical Operations	500	400
Operating Mode	Front / Side	Front / Side
Standards	IEC 60947-3, GB/T 14048.3	IEC 60947-3, GB/T 14048.3
Sertifikasi	CCC, CE, TÜV, CB	CCC, CE, TÜV, CB