Skip to main content

Hitachi

Hitachi Industrial Equipment Systems Co., Ltd.

Allowable installation angle

Normal installation is made on the perpendicular plane as shown in Fig. b. As shown in Fig. a, the installation position with an inclination of up to 15° to the left and right and back and forth is permissible.
Limited to models of frames 8C - 125C, side installation, in the condition where it is turned 90° in counterclockwise direction from the normal installation position, can also be made as shown in Fig. c, but in unavoidable cases. However, its life will be shortened by about 20%.

Allowable installation angle
Fig. a Allowable installation angle

Fig. b Normal installation
Fig. b Normal installation

Fig. c Side installation
Fig. c Side installation

Fig.d
Fig.d

Special screw

Sometimes a special screw (unitized screw and spring washer) is used in the coupling section of the electromagnetic contactor and thermal overload relay in an electromagnetic starter.
The special screw has an incomplete thread section so when using the thermal overload relay disconnected from the contactor, tighten the screw by inserting a plane washer, etc., so that the incomplete thread section is not screwed into terminal plate.

Special screw

Cautions of Rail Mouting Type

(1) Interval of screws for rail mounting
Interval of screws for rail mounting -as shown in fig. d- shall be as follows.
- Contactor relays and 8C - 12 frame : Por more300mm
- 20 - 50 frame : Por more200mm

(2) Mounting space of switches
Mounting space of switches -as shown in fig. e- shall be as follows.
- Contactor relay : lor less0mm
- Contactor, starter : lor less5mm

(3) Side installation is not allowed as shown in fig. f.

Cautions of Rail Mouting Type

Applicable wires and suitable tightening torques

Frame Specifications Maincircuit
Motor capacity 200V Class (kW) Rated operational current 200V Class (A) Terminal screw (mm) Connectable wire (mm2) Maximum width of usable solderless terminal (mm) Suitable tightening torque (N-m)
Electro- magnetic contactor Thermal overload relay Electro- magnetic contactor Thermal overload relay
8C 2.5 11 M3.5 (φ1.6) 2 7.8 1
10C
10B
3 12 M3.5 (φ1.6) 2 7.8 1
11
12
3 12 M3.5 (φ1.6) 2 7.8 1
20 5.5 22 M4 (φ2) 3.5 9 1.5
25 7.5 27 M5 (φ2.6) 8 10 3.5
35 11 39 M5 (φ3.2) 14 12.5 3.5
50 15 52 M5 14 12.5 3.5
65C 18.5 65 M6 22 16.5 5
80C 22 80 M6 60 22 5
100C 30 105 M8 bolt 60 22 14
125C 37 126 M8 bolt 60 27 14
150C 45 150 M8 bolt 80 27 14
200C 55 182 M10 bolt 150 37 25
250C 75 240 M10 bolt 150 37 25
300C 90 300 M12 bolr 200 44 45
400C 115 400 M12 bolt 200 44 45
600C 160 600 M12 bolt 325 55 45
Frame Operation circuit Xontactor
Terminal screw (mm) Connectable wire (mm2) Maximum width of usable solderless terminal (mm) Suitable tightening torque
(N-m)
Mounting screw Suitable tightening torque (N-m)
Electro- magnetic contactor Thermal overload relay Electro- magnetic contactor Thermal overload relay Screw diameter (mm) Number of screws
8C M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
10C
10B
M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
11
12
M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
20 M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
25 M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
35 M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
50 M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
65C M3.5 (φ1.6) 2 7.8 1 M4 2 1.5
80C M3.5 (φ1.6) 2 7.8 1 M5 2 3.5
100C M3.5 (φ1.6) 2 7.8 1 M5 2 3.5
125C M3.5 (φ1.6) 2 7.8 1 M6 2 5
150C M3.5 (φ1.6) 2 7.8 1 M6 2 5
200C M3.5 (φ1.6) 2 7.8 1 M8 bolt 4 14
250C M3.5 (φ1.6) 2 7.8 1 M8 bolt 4 14
300C M3.5 (φ1.6) 2 7.8 1 M8 bolt 4 14
400C M3.5 (φ1.6) 2 7.8 1 M8 bolt 4 14
600C M4 M3.5 (φ1.6) 2 7.8 1.5 1 M8 bolt 4 25

Remark

 
Except for certain special cases, the following are used for wiring of operating circuit electric wires, circuits of auxiliary contacts, etc.
 
Single wire : 1.6mm2 600V polyvinyl chloride wire
 
Standard wire : 1.25 or 2 mm2 600V polyvinyl chloride wire

Product Inquiry