System pro M compact® - Piti Group

Systempro M compact ®Selection tablesCommand devicesE 250 latching relaysE 250Technical characteristics6E 255 E 250/E 251/E 252/E 256Rated voltage Un [V] 250 250 (1-2 contacts)400 (3-4 contacts)E 257 C250 (1-2 contacts)400 (3 contacts)Rated current In [A] 16 16-32 16-32Rated frequency [Hz] 50/60 50/60 50/60 Contacts motor module NO 1 + 1 1 - 2 1...3change-over - 1 - 2 1...3NO+NC - 1 + 1 -additional power contacts NO - 2 -change-over - 2 -NO+NC - 1+1 -Width (n° of DIN modules) motor module [mod.] 1 1 1 - 2with main contact block [mod.] - 2 -Control coilsupply voltage: d.c / a.c. ratio 0,5 : 1 0,5 : 1 0,5 : 1characteristics tolerance on supply voltage ±10% ±10% ±10%power consumption a.c. holding [VA] 11.0 11.0/11.5 11.0/14.5pick-up [VA] 14.5 14.5/16.5 11.0/14.5power consumption d.c. [W] 7.5 7.5/8 7.5/8Pulse durations minimum pulse duration (at Un) [s] 0.050 0.050 0.050minimum pulse duration (90% Un) [s] 0.100 0.100 0.100minimum interval between two pulses [s] 0.150 0.150 0.150maximum number of pulses per minute 250 250 250Lifetime in number of electrical (in AC-1 at full load) 3 x 10 5 4 x 10 5 /3 x 10 5 4 x 10 5 /3 x 10 5operations mechanical 2 x 10 6 2 x 10 6 2 x 10 6Load characteristics maximum load in AC-1 per phase [A] 20 20/32 20/32maximum load in DC (up to 30 V d.c.) [A] 16 16 16minimum load per phase (under 5 V) [W] 2 2 2short circuit protection fuse (gL) [A] 20 20/32 20/32Maximum number of lampsincandescent and halogen [W] 3000 3000/4000 3000/4000(10 3 operations/h) fluorescent, corrected series [VA] 3000 3000/4000 3000/4000power factor (cos = 0.9) parallel [VA] 2500 2500/3200 2500/3200fluorescent, uncorrected power factor [VA] 1800 1800/220 1800/2200(cos = 0.5)Maximum number of non illuminated unlimited unlimited unlimitedbuttonsilluminated 3 wires unlimited unlimited unlimited2 wires General characteristics DIN rail mount yes yes yeshooking on bistable DIN rail yes yes yestwo position knob - yes yescontact position indication yes yes yeslabel-holder yes yes yescage terminals yes yes yescaptive screws yes yes yessealable terminals yes yes yescable section (ø min./max.) [mm 2 ] 1.5/10 1.5/10 (2P: 6) 1.5/10min./max. operating temperature [°C] -20...+45 -20...+45 -20...+45 All latching relays can also be used at 60Hz. In this case and escluding E255, you can use maximum one auxiliary contact E250H but it is not possible to use power contactsE250CM. Supply voltage: all devices operate in both a.c. and d.c., with the specified voltage ratios, except for the 115 V a.c. version that operates at 48 V d.c.. The relays can withstand the “button stuck” condition. When the application calls for the relays to be permanently supplied, spacers must be used on either side,making sure that the duty cycle allows the device to cool down to ambient temperature. 1 cycle = 2 operations per pole (closing + opening) See table for use of the E 250 CP compensator modulesTechnical details ........................ pag. 10/133 Overall dimensions ...................... pag. 12/326/32ABB