Technical parameters 

Appearance and installation dimensions (mm) 

Scope of application

○ MX + OF, MG, MN

○ Assembly method: Installed in the small circuit breaker on the right, the circuit breaker trip operation.

○ Installation: see the installation diagram shows a small circuit breaker in the open state (handle in the OFF position), the small circuit breaker on the right side of the cover rotation 90 °, remove the cover, according to Figure 2 shows the MX + The shunt and upper and lower links of the OF shunt release are aligned with the handle and rivet holes on the right hand side of the miniature circuit breaker, respectively, and gently pushed into the MX + OF shunt release and miniature circuit breaker.(See installation diagram three).

○ OF, SD

○ Assembly method: Installed in the small circuit breaker on the left, indicating the breaker off state.

○ Installation: see the installation diagram of a small circuit breaker in the open state (handle in the OFF position), the small circuit breaker on the left side of the cover is rotated 90 °, remove the cover, according to Figure 2 OF auxiliary contact And the upper and lower ends of the rod are aligned with the handle groove and the rivet hole on the left side of the miniature circuit breaker, respectively, and push it gently into the OF auxiliary contact and the miniature circuit breaker. (See installation diagram 3). 11,12 for a pair of normally closed terminals, 11,14 for a pair of normally open terminals.

Characteristic and Application of MX + OF Sub - excitation Auxiliary Switch

This product is based on the old MX + OF improved to overcome the old MX + OF in the remote control, the wire distance of more than 300m, the resistance of the wire itself, the voltage drop, resulting in the old MX + OF input Voltage is too small, the switch lost its protective effect. The introduction of new MX + OF electronic components board a good solution to the distance between the wire in the 300 ~ 500m remote control, while working with the switch state (SMGB1-63 points) signal instructions, mainly used in fire, hotels and other business establishments.

Products meet GB14048.1, IEC60947-1 standards.

Technical parameters

Appearance and installation dimensions (mm) 

Installation method

See the installation diagram, SMGB1 is in the off position (the handle is in the OFF position), turn the cover of the right side of SMGB1 90 ° counterclockwise, remove the cover, align this product with SMGB1 right cover hole, Press the work instruction button and close the SMGB1, according to the right to connect the SMGB1 and auxiliary switch (wire 1,2 length control within 500m, if more than this range should be in consultation with our company set a separate , D1, D2 for the input voltage side (connected with the SMGB1), C, C1, C2 for the switch status indicator signal output (external signal indication).

Installed on the right side of the SMGB1-63 (see the installation diagram), the installation of external wire cross-sectional area of the inner diameter (not including insulation) is 0.6mm2, external wire insulation must be insulated wire.

Installation diagram

Ordering Information

When ordering, please fill in the following format: MX + OF (new) DC24V, 100.

The meaning of the new MX + OF sub-excitation auxiliary switch, DC 24V, the number of 100 units.