Overload Relays

Catalogs > Industrial Controls Catalog > Motor Control, IEC > Overload Relays > Bulletin 193-EF Solid-State Overload Relays

Bulletin 193-EF Solid-State Overload Relays

Specifications

Supply Voltage Failure
In the event of a supply voltage failure, the output relay resets and the stand-by indicator goes out. The actual status is stored for 30 minutes. When the supply voltage is restored, the output relay reverts to its original state.

Reset — Manual
The reset button resets all protection functions. Resetting from any location is possible with the 193-RB1 remote reset module.

Reset — Automatic
Automatic resetting of thermal overload and thermistor overtemperature functions is an optional feature. All other protection functions must be reset manually.

Test Button for Thermal Overload Protection
Pressing the test button will verify thermal tripping operation time at 6x/_e without the motor being connected. The test button must be held for longer than the set trip time t_6x/e.

Device Installation and Commissioning
The operating instructions enclosed with the device provide all of the information necessary to set and commission it.

Surface Mounting
193-EF_A Snap-on fixing to standard DIN Rail or screw fixing
193-EF_B Screw fixing
193-EF_C Screw fixing
Mounting position: optional

Setting the Rated Current (0.5…20 A) (193-EF1A and 193-EF2A Requires 193-HD)

The motor supply cables are looped through the current transformer twice, thereby doubling the rated motor current. The setting on the Bulletin 193-EF overload relay is the product of:

I_e [A] x…number of loops

		Recommended for Ie [A]	Motor Supply Cables	Cable Cross Section (Flexible Strand)
				IEC [mm2]	CSA, UL (AWG No.)
		20…180	fed straight through	4…95	10…10 000
		10…20	looped twice	2.5…25	14…10
		5…10	looped 4 times	1…6	14
		2.5…5	looped 8 times	0.75…2.5	14
Motor supply wire looped twice	Motor supply wire looped 4 times	0.5…2.5	looped 40 times	0.5…0.75	T
T CSA, UL: for Ie = 0.5…2.5 A, only factory-assembled wound devices should be installed

Rated Voltage Motor Circuit (primary circuit of current measuring device)
IEC 947, EN 60947	[V]	1000
CSA, UL	[V]	600
Control Circuit
IEC 947, EN 60947	[V]	440
CSA, UL	[V]	240
Rated Control Voltage US
AC 50/60 Hz	[V]	24, 36, 48, 110, 120, 230, 240, 400, 415, 440, (0.8…1.1US)
DC	[V]	24, 48 (0.9…1.2 US)
Terminal Cross-section
Control circuit	[mm2]	2 x 2.5
Device Protection Fuse		10 A Type gG or 16 A Type gG
Output Relay Contact Information
Contact assembly		1 N.O. and 1 N.C., galvanically separated
Rated operating voltage per UL/CSA: pilot duty 240V	[V]	24	110…125	220…250	380… 440
Continuous Thermal current	[A]	4
Rated AC operating current AC-15	[A]	3		3	1.2
Max. permissible switching current (cos = 0.3) AC-15	[A]	30		30	12
Rated DC operating current (L/R = 300 ms), no protective circuit needed DC-13	[A]	2	0.3	0.2	—
Max. rated back-up fuse current		10 A, 500V AC Type gG
Ambient temperature     Operation     Storage     Transport		-5…+60 °C -50…+60 °C -50…+85 °C

Sensor Measurement Circuit
Measurement circuit Cross section	[mm2]	0.5	1.5
Max. lead lengthT	[m]	200	600
Max. cold resistance of PTC sensor chain	kW	1.5
Max. number of PTC sensors per IEC 34-11-2		6
Weights
Overload Relay
193-EF1A	[g]	1 070
193-EF2A	[g]	1 090
193-EF1B	[g]	2 510
193-EF2B	[g]	2 530
193-EF2C	[g]	5 550
193-LB1 indication module	[g]	160
193-RB1 Remote reset module	[g]	160
196-MTM Adapter	[g]	5
193-PA Front cover	[g]	3
193-HD Terminal lug	[g]	40
Bus bars
825-MVM	[g]	230
825-MVM2	[g]	290
825-MVS	[g]	280
825-MVS2	[g]	350
Approvals
CE, UL Listed, CSA, Bureau Veritas, Lloyd’s Register of Shipping, Maritime Register of Shipping, RINA
T Type of wiring: insulated control leads, screened > 200 m (shield connected with 1T1)