CJRV-32X MPCB 25-32A Motor Protection Circuit Breaker Overload Short Circuit Protection for Three-Phase Asynchronous Motors

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Normal working and installation conditions

The altitude of the installation site generally does not exceed 2000m;

The lower limit of the ambient air temperature is generaly not lower than -5 ℃,the upper limit is generaly not higher than+40℃, and its average value within 24 hours does not exceed+35 ℃;

The relative humidity of the air shall not exceed 90% (at+25 ℃ ± 5 ℃ )

The pollution level of the surrounding environment is pollution level 3;

The installation category of the starter is installation category lll;

The inclination between the starter and the vertical installation surface shall not exceed ± 5 °;

Tripping level: CJRV-25 (X),CJRV-32 (X),CJRV-32H,CJRV-80:10A;

Rated working hours: uninterrupted working hours, eight hour working hours.

Features

Rated insulation voltage Ui (V): 690.

Rated working voltage Ue (V): AC230/240,AC400/415,AC440,AC500, AC690.

Rated frequency(Hz): 50/60.

Rated current of shell frame level Inm (A): 25(CJRV-25,25X),32 (CJRV-32,32X CJRV-32H), 80 (CJRV-80).

Rated current of the release In (A): (see Table 1).

Setting current regulation range: (see Table 1).

Rated ultimate short-circuit breaking capacity lcu (kA): (see Table 1).

Rated operating short-circuit breaking capacity lcs (kA): (see Table 1).

Rated impulse withstand voltage Uimp (V): 8000.

Selective categories (A or B) and usage categories: A, AC-3.

Before inserting the conductor (wire/conductive strip) into the terminal, the insulation length should be peeled off (mm): 10, 15 (CJRV-80).

Cross section area of conductor (wire/conductive bar) mm2: 1~6, 2.5~25 (CJRV2-80).

Maximum number of conductors (wires/conductive bars) allowed to be clamped in: 2, 1 (CJRV-80).

Terminal fastening screw (or bolt)size: M4,M8(CJRV-80).

Tightening torque of terminal fastening screws (N·m): 1.7, 6 (CJRV-80).

Operation frequency (times/hour): ≤ 30,≤ 25 (CJRV-80).

Table 1

Product number	Rated current of release In (A)	Setting current Adjustment range(A)	Rated ultimate short-circuit breaking capacity lcu, rated operating short-circuit breaking capacity lcs kA				Flying arc distance (mm)
			AC 400/415V AC 690V		AC 690V
			Icu	Ics	Icu	Ics
CJRV-25(X)	0.16	0.1~0.16	100	100	100	100	40
	0.25	0.16~0.25	100	100	100	100	40
	0.4	0.25~0.4	100	100	100	100	40
	0.63	0.4~0.63	100	100	100	100	40
	1	0.63~1	100	100	100	100	40
	1.6	1~1.6	100	100	100	100	40
	2.5	1.6~2.5	100	100	3	2.25	40
	4	2.5~4	100	100	3	2.25	40
	6.3	4~6.3	100	100	3	2.25	40
	10	6~10	100	100	3	2.25	40
	14	9~14	15	7.5	3	2.25	40
	18	13~18	15	7.5	3	2.25	40
	23	17~23	15	6	3	2.25	40
	25	20~25	15	6	3	2.25	40
CJRV-32(X)	32	24~32	10	5	3	2.25	40
CJRV-32H	0.16	0.1~0.16	100	100	100	100	40
	0.25	0.16~0.25	100	100	100	100	40
	0.4	0.25~0.4	100	100	100	100	40
	0.63	0.4~0.63	100	100	100	100	40
	1	0.63~1	100	100	100	100	40
	1.6	1~1.6	100	100	100	100	40
	2.5	1.6~2.5	100	100	4	4	40
	4	2.5~4	100	100	4	4	40
	6.3	4~6.3	100	100	4	4	40
	10	6~10	100	100	4	4	40
	14	9~14	50	25	4	4	40
	18	13~18	50	25	4	4	40
	23	17~23	50	25	4	4	40
	25	20~25	50	25	4	4	40
	32	24~32	50	25	4	4	40
CJRV-80	25	20~25	50	17.5	4	2	50
	32	23~32	50	17.5	4	2	50
	40	30~40	50	17.5	4	2	50
	50	37~50	50	17.5	4	2	50
	65	48~65	50	17.5	4	2	50
	80	63~80	50	17.5	4	2	50