Porduct Overview

EKC2SU Series ac contactors are used for controlling 3-phase motor circuits up to 690v Ac. These contactors are of the block type design with 3 main poles. Built in 1NO+1NC auxiliary contact and surge suppression, resulting in installation time and cost savings.
Compared with contactors using extremal surge suppressors, contactor products using built in surge suppressors will have more reliable performance and at the same time the surges are handled by the contactor itself and the surge never reaches the control circuit.

Technical parameters

Technical Data

Table 1

AC/DC control supply	Type	EKC2SU-09	EKC2SU-12	EKC2SU-18	EKC2SU-25	EKC2SU-32
Main circuit characteristic
Poles		3P
Main contact		3NO
Rated insulation voltage(Ui)		690V
Rated operating voltage(Ue)		AC220/230V; 380/400V; 660/690V
Rated thermal current(Ith), AC-1		20	20	32	40	50
Mechanical life(×10⁴times)		1000	1000	1000	1000	80
Electrical life (×10⁴ times)	AC-3	100	100	100	100	80
Electrical life (×10⁴ times)	AC-4	20	20	20	20	20
Frequency of operation (time/h)	AC-3	1200	1200	1200	1200	600
Frequency of operation (time/h)	AC-4	300	300	300	300	300

Table 2

AC/DC control supply	Type	EKC2SU-40	EKC2SU-50	EKC2SU-65	EKC2W-80	EKC2W-95
Main circuit characteristic
Poles		3P
Main contact		3NO
Rated insulation voltage(Ui)		690V
Rated operating voltage(Ue)		AC220/230V; 380/400V; 660/690V
Rated thermal current(Ith), AC-1		60	80	80	100	125
Mechanical life(×10⁴times)		800	800	800	1000	800
Electrical life (×10⁴ times)	AC-3	60	60	60	60	60
	AC-4	15	15	15	10	10
Frequency of operation (time/h)	AC-3	600	600	600	600	600
	AC-4	300	300	300	300	300

Rated control voltage(Us)	50Hz	AC/DC: 24~60V, 110~250V
	50/60Hz	AC/DC: 24~60V, 110~250V
Allowed control circuit voltage	Operation	(85%~110%)Us
	Release	(20%~75%)Us
AC/DC24-60V AC/DC110-250V	Suction time(ms)	≤120
	Release time(ms)	≤90
Energy efficiency rating AC/DC		Level 2

Table 3

Control circuit characteristics
Rated control voltage(Us)	50Hz	24V,36V,48V,110V,230V,380V,415V,440V
Rated control voltage(Us)	50/60Hz	24V,36V,48V,110V,230V,380V,415V,440V
Allowed control circuit voltage	Operation	(85%~110%)Us
Allowed control circuit voltage	Release	(20%~75%)Us
Surge suppressors	RC type	AC/DC24V,36V,48V,110V,250V,380V,415V,440V

Table 4

Auxiliary contacts
Bulit-in auxiliary contact		1NO+1NC
Rated thermal current (Ith)		10A
Rated operating voltage (Ue)	AC	380V
	DC	220V
Rated control capacity	AC-15	360VA
	DC-13	33W

Product selection form

EKC2SU-0911-24	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 24VAC
EKC2SU-0911-36	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 36VAC
EKC2SU-0911-48	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 48VAC
EKC2SU-0911-110	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 110VAC
EKC2SU-0911-230	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 230VAC
EKC2SU-0911-380	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 380VAC
EKC2SU-0911-415	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 415VAC
EKC2SU-0911-440	Built-in surge suppressors contactor 4KW AC3 9A 3P+1NO+1NC Coil 440VAC
EKC2SU-1211-24	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 24VAC
EKC2SU-1211-36	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 36VAC
EKC2SU-1211-48	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 48VAC
EKC2SU-1211-110	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 110VAC
EKC2SU-1211-230	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 230VAC
EKC2SU-1211-380	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 380VAC
EKC2SU-1211-415	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 415VAC
EKC2SU-1211-440	Built-in surge suppressors contactor 5.5KW AC3 12A 3P+1NO+1NC Coil 440VAC
EKC2SU-1811-24	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 24VAC
EKC2SU-1811-36	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 36VAC
EKC2SU-1811-48	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 48VAC
EKC2SU-1811-110	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 110VAC
EKC2SU-1811-230	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 230VAC
EKC2SU-1811-380	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 380VAC
EKC2SU-1811-415	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 415VAC
EKC2SU-1811-440	Built-in surge suppressors contactor 7.5KW AC3 18A 3P+1NO+1NC Coil 440VAC
EKC2SU-2511-24	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 24VAC
EKC2SU-2511-36	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 36VAC
EKC2SU-2511-48	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 48VAC
EKC2SU-2511-110	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 110VAC
EKC2SU-2511-230	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 230VAC
EKC2SU-2511-380	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 380VAC
EKC2SU-2511-415	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 415VAC
EKC2SU-2511-440	Built-in surge suppressors contactor 11KW AC3 25A 3P+1NO+1NC Coil 440VAC
EKC2SU-3211-24	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 24VAC
EKC2SU-3211-36	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 36VAC
EKC2SU-3211-48	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 48VAC
EKC2SU-3211-110	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 110VAC
EKC2SU-3211-230	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 230VAC
EKC2SU-3211-380	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 380VAC
EKC2SU-3211-415	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 415VAC
EKC2SU-3211-440	Built-in surge suppressors contactor 15KW AC3 32A 3P+1NO+1NC Coil 440VAC
EKC2SU-4011-24	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 24VAC
EKC2SU-4011-36	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 36VAC
EKC2SU-4011-48	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 48VAC
EKC2SU-4011-110	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 110VAC
EKC2SU-4011-230	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 230VAC
EKC2SU-4011-380	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 380VAC
EKC2SU-4011-415	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 415VAC
EKC2SU-4011-440	Built-in surge suppressors contactor 18.5KW AC3 40A 3P+1NO+1NC Coil 440VAC
EKC2SU-5011-24	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 24VAC
EKC2SU-5011-36	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 36VAC
EKC2SU-5011-48	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 48VAC
EKC2SU-5011-110	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 110VAC
EKC2SU-5011-230	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 230VAC
EKC2SU-5011-380	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 380VAC
EKC2SU-5011-415	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 415VAC
EKC2SU-5011-440	Built-in surge suppressors contactor 22KW AC3 50A 3P+1NO+1NC Coil 440VAC
EKC2SU-6511-24	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 24VAC
EKC2SU-6511-36	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 36VAC
EKC2SU-6511-48	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 48VAC
EKC2SU-6511-110	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 110VAC
EKC2SU-6511-230	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 230VAC
EKC2SU-6511-380	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 380VAC
EKC2SU-6511-415	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 415VAC
EKC2SU-6511-440	Built-in surge suppressors contactor 30KW AC3 65A 3P+1NO+1NC Coil 440VAC
EKC2SU-8011-24	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 24VAC
EKC2SU-8011-36	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 36VAC
EKC2SU-8011-48	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 48VAC
EKC2SU-8011-110	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 110VAC
EKC2SU-8011-230	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 230VAC
EKC2SU-8011-380	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 380VAC
EKC2SU-8011-415	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 415VAC
EKC2SU-8011-440	Built-in surge suppressors contactor 37KW AC3 80A 3P+1NO+1NC Coil 440VAC
EKC2SU-9511-24	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 24VAC
EKC2SU-9511-36	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 36VAC
EKC2SU-9511-48	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 48VAC
EKC2SU-9511-110	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 110VAC
EKC2SU-9511-230	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 230VAC
EKC2SU-9511-380	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 380VAC
EKC2SU-9511-415	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 415VAC
EKC2SU-9511-440	Built-in surge suppressors contactor 45KW AC3 95A 3P+1NO+1NC Coil 440VAC

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