Siemens 45BJ20A Series User manual

IEC 60947-4-1
45.J1. (1 Pole with Shunt)
45.J4. (1 Pole )
42.J36.(3 Pole with Aux)
A. Technical Data
(i) Main Circuit:
These contactors are used for control of motors, Power
supplies, Heating elements, Lighting & HVAC fans &
compressors.
·Insulation Voltage Ui : 600V AC
·Rated operational voltage (Ue):
240V, 50/60Hz for 1 Pole & 1 Pole with shunt
240/415V, 50/60Hz for 2 Pole & 3 Pole
·Impulse withstand voltage Uimp= 2.5kV (Overvoltage
category II).
·Temperature : Storage -40 to + 65 °C
Service (without derating) - 5 to + 55 °C
1 Pole without shunt
2 Pole 3 Pole
Contactor
Type FLA (A)
(Ie AC8a)
Fuse Rating for
Type 1 Coordina-
tion 'gG' (A)
45CJ40A..
45DJ40A..
45EJ40A..
25
30
40
32
40
50
Contactor
Type FLA (A)
(Ie AC8a)
45BJ20A..
45DJ20A..
45EJ20A..
20
30
40
32
40
50
Contactor
Type FLA (A)
(Ie AC8a)
42BJ3.A..
42CJ3.A..
42DJ3.A..
20
25
30
32
35
40
42EJ3.A.. 40 50
·Switching frequency in Make/Break operation:
180 operating cycles/hour for all the ratings
Table 1.1
(ii) Aux Circuit:
Inbuilt Auxilliary Contacts
1NO + NC in case of 42.J36A Auxilliary Contact Rating: Ie AC-15= 2.4A at 415V
Ie DC- 13= 0.28A at 220V
(iii) Control Circuit:
·Control voltage is marked on the coil of the contactor.
Note:
·The voltage is to be maintained within allowable
limits.
·Operation on under voltage conditions to the coil may
cause damage to the coil/contactor.
·Maximum back-up fuse rating for control circuit= 10A
(iv) Internal connection diagram:
Connection Details
45.J1.
(1 Pole with Shunt) 45.J2.
(2 Pole)
42.J35.
(3 Pole)
45.J4.
(1 Pole without shunt)
Fig.1
42.J36.
(3 Pole with Aux contact block)
Definite Purpose Contactor
Type: 45.J1.,45.J2.,42.J3.,45.J4.
42.J35. (3 Pole)
45.J2. (2 Pole )
1 Pole with shunt
Contactor
Type FLA (A)
(Ie AC8a)
45CJ10A..
45DJ10A..
45EJ10A..
25
30
40
32
40
50
Fuse Rating for
Type 1 Coordina-
tion 'gG' (A)
Fuse Rating for
Type 1 Coordina-
tion 'gG' (A)
Fuse Rating for
Type 1 Coordina-
tion 'gG' (A)

Disposal
Siemens product are environment friendly, which predominantly
consist of recyclable materials
For disposal we recommend disassembling and seperation into
following materials:
METALS: Segregate into Ferrous & Non Ferrous types for recycling
through authorised dealer.
PLASTICS: Segregate as per material type for recycling through
authorised dealer. Because of the long lifetime of Siemens products
the disposal guidelines may be replaced by other national regulations
when taking the product out of service.
The local customer care service is available at any time to answer
disposal-related questions.
Customer Care Toll free no. 1800 209 0987 Email:[e-mail] Order No. MISC4566_A
Siemens Ltd. Product development is a continous process. Consequently
the data indicated in this Leaflet is subject to change without
prior notice.For latest issue contact our sales offices.
Permissible Conductor Size: Termination Data of Contactor
B. Installation
1. Permitted mounting positions are indicated in Fig. 2
2. The unit is suitable for screw mounting on flat vertical
surface with M5 screws applying 3 N-m torque. Always use
plain and spring washers.
Note: Install the unit in housing if it is a exposed to dust,
dirt, contamination or aggressive atmosphere.
C. Overall Dimension
Terminal data 45.J1. 45.J4. 45.J2. 45.J3.
Main Terminals
Screw Type Solid / Stranded 2.5 to 10
Finely stranded with pin type lugs 2.5 to 10
Finely stranded with fork type lugs 2.5 to 25
AWG 16-8*
Main Terminals
Box Type Solid / Stranded - - 2.5 to 25 Finely stranded with end sleeves - - 2.5 to 10
Finely stranded with pin type lugs - - 2.5 to 25
AWG cables - - 14-4
Main Terminals Quick connect Dual & Quad . 250" QC Dual . 250" QC
Aux Terminals Quick connect Single. 250" QC Single . 250" QC
Coil Terminals Quick connect Dual . 250" QC Dual . 250" QC
Main Terminals
Screw Size
Pan, Hex screw M5
Box lug screw M8
Tightening torque
Screw type (Lb.in / Nm) 25 / 3
Tightening torque
Box type (Lb.in / Nm) 40 / 4.5
Fig.2
360° 22.5° 22.5°
Dimensional drawing:
45.J1., 45.J4. 45.J2.
42.J3.
* Stranding must be split for 8 AWG wire.
Last update: 18 March 2021