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Supplemental and Obsolescence Digest 174

International Miniature Circuit Breakers

QO® Plug-on and Bolt-on Connections

 

Circuit Breaker Operating Characteristics

 

Table 7.2:

Main Circuit Breakers

Cat. No. Prefix		Number of Poles	Continuous Ampere Rating	IEC 60947-2 Service Rating Icu (Ics)		Residual Trip Current BS4293
Plug-on	Bolt-on			240 V	415 V
QO-MBGX30	N/A	2	16–63 A	10000 (25%)	—	30 mA

 

Table 7.3:

Branch Circuit Breakers

Cat. No. Prefix		Number of Poles	Continuous Ampere Rating	IEC 898 Service Rating Icn		Tripping Characteristics
Plug-on	Bolt-on			240 V	415 V
QOXD	QOBXD	1, 2, 3	10–32 A	3000	3000	Type D (10–20 In)
QO-EB6	N/A	1	3–63 A	6000	—	Type B (3–5 In)
QO-EC6	N/A	1, 3	6–63 A	6000	6000	Type C (5–10 In)
QO-ED6	N/A	1	6–63 A	6000	—	Type D (10–20 In)
QO-EB10	N/A	1	3–63 A	10000	—	Type B (3–5 In)
QO-EC10	N/A	1, 2, 3	6–63 A	10000	10000	Type C (5–10 In)
QO-ED10	N/A	1, 2, 3	6–63 A	10000	10000	Type D (10–20 In)
Cat. No. Prefix		Number of Poles	Continuous Ampere Rating	IEC 947-2 Service Rating Icu (Ics)
Plug-on	Bolt-on			240 V	415 V
QOXD	QOBXD	1, 2, 3	10–32 A	3000 (100%)	3000 (100%)
		1	40–63 A	3000 (50%)	—
		2, 3	40–100 A	—	3000 (50%)
QOVS		1, 3	10–63	6000	6000	Type C (Ics = Icn)
		1, 2, 3	10–63	10000	10000	Type C (Ics - 75%Icn)

 

Table 7.4:

Residual Current Circuit Breakers

Cat. No. Prefix		Number of Poles	Continuous Ampere Rating	IEC 898 Service Rating Icn		Residual Trip Current BS4293	Tripping Characteristics
Plug-on	Bolt-on			240 V	415 V
QOE-B01	N/A	1	6–40 A	10000	—	10 mA	Type B (3–5 In)
QOE-B03	N/A	1	6–40 A	10000	—	30 mA	Type B (3–5 In)
QOE-C01	N/A	1	6–40 A	10000	—	10 mA	Type C (5–10 In)
QOE-C03	N/A	1	6–40 A	10000	—	30 mA	Type C (5–10 In)
QOE-C100	N/A	1	6–40 A	10000	—	100 mA	Type C (5–10 In)