C300 – DC bi-directional switchingC310 – DC bi-directional switching
C300 – DC bi-directional switchingContactorsRequest
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C310 – DC bi-directional switchingContactorsRequest
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Series C300-500 C310K, C310A, C310S
Type of voltage DC bi-directional DC bidirectional, AC (f ≤ 60 Hz)
Main contacts, configuration 1 NO 1 NO
Rated operating voltage Ue 1,000 V C310K: 1,000 V @ PD3 / 1,500 V @ PD2
C310A: 1,000 V
C310S: 60 V @ PD3
Rated insulation voltage Ui 1,000 V @ PD3
1,500 V @ PD2 		1,000 V @ PD3
1,500 V @ PD2
Rated impulse withstand voltage Uimp 8 kV 10 kV
Pollution degree
Overvoltage category		 PD2 / PD3
OV3 		PD2 or PD3, see Ue and Ui
OV3
Conv. thermal current Ith 500 A @ 300 mm2, 70° C 500A @ 40° C
300 A @ 70° C
150 A @ 70° C
Rated short-time withstand current Icw 6,000 A @ t = 20  ms
< 25,000 A @ t < 20  ms (contact welding, no explosion, no fire) 		3,000 A @ t = 1  s
Rated short-circuit making capacity Icm 4,500 A @ L < 50 µH
Auxiliary switches 1 NC with mirror contact function 2x SPDT max. with mirror contact function, single-break
Snap-action switches S880: AC-15: 230 VAC/1.0 A; DC-13: 60 VDC/0.5 A
Coil voltage Us 12 ... 24 V DC
(operating range 10.5 ... 36 V DC)
PWM module, integrated 		Standard:
12...24 V DC (operating range 9.5...36 V DC) / 48 V DC (operating range 33.6...60 V DC)
Bistable:
24 / 48 V DC
Mounting orientation horizontal, vertical horizontal, vertical
(do not mount upside down)
Temperature range -40° C ... +85° C -40° C ... +85° C
Mechanical endurance 200,000 operations 2 million op. cycles (std. magnetic drive)
100,000 op. cycles (latch magnetic drive)
(Replace auxiliary switch after 1,000,000 switching cycles)