Siemens 3UA50, 3UA52 User Manual

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			3UA50 3UA52
	GB14048.4 DIN VDE0660 102 IEC 60947-4-1
	A001253	Q/SMS 001 XK06-201 0023
	4NEB 601 1482-30 *5

!

IEC 60529 IP20GB4942.2 DIN VDE0106 100

I 3UA50 3TD40/41 3TE40 3TF30/31/40/41 3TW10/12/40/41 3TB40/413UX1418

3UA52 3TD42/43 3TE42 3TF32/33/42/43 3TW13/42/43 3TB42/433UX1420

II mm

a3UA50 3UX1418 3UA52 3UX1420

b3UA50 3TF30/31

c3UA50 3TF40/41

I 1NO 1NC

II 1NO+1NC 2NO+2NC

d3UA52 3TF32/33

e3UA52 3TF42/43

1

2 DIN EN50 022 3 3mm2.5mm 2.5mm 4

III

安装

35mm DIN EN50 022 2

IV V

VI

作状态。 出厂时本按钮被置于“H” “A” H A

A2

VII

VDE0165 VDE0170/0171+20°C1×IE

25%

IE:

tA: ±20%

I IE, II IE

PTB

				690V
				3UA50 0.1~14.5A
				3UA52 0.1~25A
				-25°C~+55°C
	400V				690V
	AC-15/Ue	V	24	60	125	230	400	500	690
	AC-15/Ie	A	2	1.5	1.25	1.15	1.1	1	0.8
	DC-13/Ue	V	24	60	110	220
	DC-13/Ie	A	2	0.5	0.3	0.2
NH NEOZED DIAZED						6AgG 10A
						3A C

>55°C

	55°C	1	1
	60°C	0.94	1.08
	65°C	0.88	1.09
	70°C	0.82	1.1
10A
		70°C
	8~12.5A

12.5A × 0.82 = 10.25A

70°C 10A

10A

10A ×1.1= 11A11A

1

10 A

70 8~12.5 A

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Overload Relay with Phase-Failure Sensitivity		3UA50 3UA52
	GB14048.4 DIN VDE0660 Part 102 IEC 60947-4-1
	A001253	Q/SMS 001 XK06-201 0023
Instructions	Order No. 4NEB 601 1482-30 *5		English

! Limited protection against contact with live parts.

Degree of protection IP 20 to IEC 60529.

Safe from finger touch to DIN VDE 0106,Part 100.

Commissioning and maintenance by qualified personnel only. Follow the operating Instructions!

WARNING

Hazardous voltage can cause electrical shock and burns.

Disconnect power before proceeding with any work on this equipment.

Fig. I 3UA50: For mounting on contactors 3TD40/41, 3TE40, 3TF30/31/40/41, 3TW10/12/40/41;

Individual mounting possible with assembly kit 3UX14 18. 3UA52: For mounting on contactors 3TD42/43, 3TE42, 3TF32/33/42/43,

3TW13/42/43;

Individual mounting possible with assembly kit 3UX14 20.

Installation

Dimension drawings (dimensions in mm): Fig. II

a3UA50: for individual mounting with assembly kit 3UX14 18 3UA52: for individual mounting with assembly kit 3UX14 20

b3UA50: for mounting on contactor 3TF30/31

c3UA50: for mounting on contactor 3TF40/41

I=contactor with 1 NO or 1 NC

II=contactor with 1NO + 1NC or 2NO + 2NC

d3UA52: for mounting in contactor 3TF32/33

e3UA52: for mounting in contactor 3TF42/43

1)Minimum distance from earthed components

2)For snap-on mounting on a standard sectional rail to DIN EN 50022.

3)Dimension for square OFF button (stoke 3mm).

4)Dimension for round RESET button (stroke 2.5mm) dimension minus 2.5mm.

Permissible installed positions:

Fig. III

aOverload relay with contactor

bOverload relay for individual mounting

Do not subject to sudden shocks or long-term vibrations. Mounting:

Snap-on mounting on a standard sectional rail (35mm) to EN 50 022 or bolting on a plane surface by two bolts to be secured by washers and spring washers.

Connection
Equipment circuit diagram:	Fig. IV
Permissible cable cross-sections:	Fig. V

In the case of several single-phase loads, the three main circuits must be connected in series.

Commissioning

Instructions: Fig. VI

Set the scale to the rated current of load.

Reset button (blue)

Push this button before commissioning and after tripping to make relay ready for operation.

In the as-delivered condition, the auxiliary contact is set to H=Manual resetting.

To change from H=Manual to A=Automatic, press and turn the button counterclockwise from H to A.

Test button (red)

When this button is actuated, the NC contact opens and the NO contact closes, i.e. a test function for NC and NO contacts (simulation of overload tripping).

In the “Manual” position, the relay is reset when the blue button is pressed.

In the “Automatic” position, the relay is reset automatically when the red button is released.

TRIPPED indication (green)

In the H setting, a green pin protrudes from the front plate to indicate the TRIPPED condition. In the A setting, this condition is not indicated.

Terminal for contactor coil, A2.

Tripping characteristics: Fig. VII

The characteristics conform to VDE0165, VDE 0170/0171 for machines with type of protection E Ex e.

Tripping times are shown for a three-phase load from the cold state (ambient temperature +20 ). In the case of hot relays, preloaded with 1×IE, the tripping times decrease by approx. 25%.

IE Current setting

tA Tripping time in seconds (±20% )

Setting range

(I= lowest value of current setting IE, II= highest value of current setting IE )

Type designation/Order No.

PTB (Federal testing Laboratories) Test Report No.

Technical data
Main circuit
Rated insulation voltage					690V
Rated operational current					3UA50: 0.1~14.5 A
					3UA52: 0.1~25 A
Permissible ambient air temperature					-25 to +55
Short-circuit protection					see nameplate
Auxiliary circuit
Rated operational currents
	AC-15/Ue	V	24	60	125	230	400		500	690
	AC-15/Ie	A	2	1.5	1.25	1.15	1.1		1	0.8
	DC-13/Ue	V	24	60	110	220
	DC-13/Ie	A	2	0.5	0.3	0.2
Rated insulation voltage:
400V					690V
differing potential					same potential
Short-circuit protection:
NH, NEOZED or DIAZED fuses					6A gG or 10A, fast
Miniature circuit-breaker					3A (C-characteristic)

Operating conditions at ambient temperatures>55

At ambient temperatures > 55 , you must

1.Reduce the current loading for the overload relay

2.Upwardly correct the setting current to prevent tripping at motor rated current. Correction factors:

Ambient	Perm. current loading referred	Setting current
temperature	to end-of-scale value	correction
55	1	1
60	0.94	1.08
65	0.88	1.09
70	0.82	1.1

Calculation example: Motor rated current: Ambient temperature: Overload relay fitted:

1st Step: Determine the permissible current loading: Max. Current loading: 12.5 A × 0.82 =10.25 A

Loading with motor rated current 10 A at 70 ambient temperature is permissible.

2nd Step: Calculate the setting current: Motor rated current: 10 A

Setting current correction: 10 A × 1.1=11 A You must set the overload relay to 11 A.

For further information and accessories, see Catalog.

Siemens Electrical Apparatus Ltd., Suzhou

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