Bernard ST+ARM Multi-turn Actuators: Selection &

source： date：2026-09-30

I. Technical features of original Bernard products:

1) Control circuit integrated with the actuator; 2) integrated circuits; 3) terminal electric limits; 4) torque protection; 5) motor over-heat protection; 6) protection rating IP67; 7) multiple mounting options, freely selectable speeds, single- or three-phase power; compact, lightweight, intelligent digital circuitry.

(1) on/off type

Parameter / Type		Max. torque Nm	Operating torque Nm	Actuator model	Speed rpm	时间秒 / 圈	法兰尺寸 ISO	S4 ：电机负荷率 30%
Parameter / Type		Max. torque Nm	Operating torque Nm	Actuator model	Speed rpm	时间秒 / 圈	法兰尺寸 ISO	Power kW	Speed rpm	Rated current	Starting current
On-off type	380V 50HZ IP67	1100	1100	ST30+ARM24	3.6	240	F14	0.90	1500	2.7	14
		1100	1100		5.1	240		1.50	1500	3.7	21
		1100	1100		6.7	240		1.50	1500	3.7	21
		1100	1100		10.2	240		1.50	1500	3.7	21
		1100	1100		13.6	240		2.20	1500	5.1	27
		1100	1100		20.5	240		2.20	3000	4.4	33
		1100	1100		26.7	240		2.20	3000	4.4	33
		2300	2300	ST7+ARM33	3.6	330	F25	2.20	1500	5.1	27
		2300	2300		5.1	330		3.00	1500	7.2	37
		2300	2300		6.7	330		3.00	1500	7.2	37
		2300	2300		10.2	330		4.00	1500	9.1	52
		2300	2300		13.6	330		4.00	1500	9.1	52
		2300	2300		20.5	330		4.50	3000	9.2	69
		2300	2300		26.7	330		4.50	3000	9.2	69
		1700	1700		42.2	330		4.50	3000	9.2	69
		3800	3800	ST175+ARM43	3.6	430	F30	4.00	1500	9.1	52
		3800	3800		5.1	430		5.50	1500	11.5	85
		3800	3800		6.7	430		5.50	1500	11.5	85
		3800	3800		10.2	430		7.50	3000	15.3	132
		3800	3800		13.6	430		7.50	3000	15.3	132
		3800	3800		20.5	430		7.50	3000	15.3	132
		3400	3400		26.7	430		7.50	3000	15.3	132
		2300	2300		42.2	430		7.50	3000	15.3	132
		6000	6000	ST175+ARM70	3.6	700	F35	4.00	1500	9.1	52
		6000	6000		5.1	700		5.50	1500	11.5	85
		6000	6000		6.7	700		5.50	1500	11.5	85
		6000	6000		10.2	700		7.50	3000	15.3	132
		6000	6000		13.6	700		7.50	3000	15.3	132
		4200	4200		20.5	700		7.50	3000	15.3	132
	220V 50HZ IP67	230	230	ST6+ARM13	2.4	13.5	F14	0.10	750	2.5	3.0
		230	230		3.6	13.5		0.10	750	2.5	3.0
		230	230		5.1	13.5		0.40	1500	4.0	6.3
		200	200		6.7	13.5		0.40	1500	4.0	6.3
		150	150		10.2	13.5		0.40	1500	4.0	6.3
		170	170		13.6	13.5		0.40	3000	3.5	10.5
		110	110		20.5	13.5		0.40	3000	3.5	10.5
		530	530	ST14+ARM13	2.4	13.5	F14	0.30	1500	3.5	15.0
		530	530		3.6	13.5		0.30	1500	3.5	15.0
		420	420		5.1	13.5		0.30	1500	3.5	15.0
		380	380		6.7	13.5		0.30	1500	3.5	15.0
		300	300		10.2	13.5		0.30	1500	3.5	15.0
		230	230		13.6	13.5		0.30	1500	3.5	15.0

Note: the modulating-parameter table is incomplete in the original backup (only the header survives) — contact us for modulating-duty data.