Fixed Device

Fixed Device Description

The following image shows the standard version of the fixed device (no optional accessories).

A Mounting side plate

B Carrying grip

C Arc chute

D Blue fault-trip reset button

E Opening pushbutton

F Closing pushbutton

G Spring charging handle

H Terminal blocks for standard accessories

I Front cover

J VBP pushbutton locking cover (optional)

K Rating plate

L Spring charged and ready-to-close indicator

M Main-contact position indicator

N Window to read the (optional) CDM mechanical operation counter

O Control unit

P Control unit transparent cover

Fixed Device Accessories Description

The following image shows the accessories available for the fixed device.

A Additional support brackets for mounting on a backplate

B ULP port module

C Terminal blocks for optional accessories

D Four OF indication contacts (optional)

E Four OF indication contacts (delivered as standard)

F KMT grounding kit

G MCH gear motor

H CDM mechanical operation counter

Z1, Z2 See following images

The following images zoom in on the accessories for the fixed device:

I Standard SDE1 fault-trip indication contact

J Optional SDE2 fault-trip indication contact or RES electrical remote reset

K Microswitch

L M2C programmable contacts or ESM ERMS switch module

M Isolation module

N MN undervoltage release or MX2 opening voltage release

O MX1 opening voltage release

P PF ready-to-close contact

Q XF closing voltage release

R BPFE electrical closing pushbutton

S VCPO OFF-position locking by padlocks

T VSPO OFF-position locking by keylocks

Fixed Device Terminal Block Description

Terminal block supplied as standard on the circuit breaker

Terminal block for optional accessories on the circuit breaker

Assignment of Terminal Blocks

The following table describes the assignment and the availability of the terminal blocks for fixed circuit breakers and switch-disconnectors:

Standard terminal blocks and the associated accessories are delivered with the device.
Optional terminal blocks are delivered with the device only if the associated optional accessories are installed in the device.
N/A indicates that the terminal blocks and the associated optional accessories are not compatible with the device.

Block	Marking	Description	Circuit breaker	Switch-disconnector
A	COM	Terminal block for the external power supply of the MicroLogic X control unit	Standard	N/A
	COM	or ULP port module	Optional	N/A
	UC1	Zone selective interlocking (ZSI), rectangular sensor for earth-leakage protection, or MDGF module input	Standard	N/A
	UC2	Neutral external sensor, rectangular sensor for earth-leakage protection, or MDGF module input	Standard	N/A
	SDE2/RES	SDE2 additional fault-trip indication contact	Optional	N/A on MasterPacT MTZ NA, HA, HA10 Optional on MasterPacT MTZ2 HF, HH
	SDE2/RES	or RES electrical remote reset	Optional	N/A
	UC4	External voltage connector	Optional	N/A
	UC3	External voltage connector	Optional	N/A
	M2C/ESM	M2C programmable contacts or ESM ERMS switch module	Optional	N/A
	SDE1	SDE1 fault-trip indication contact	Standard	N/A on MasterPacT MTZ NA, HA, HA10 Standard on MasterPacT MTZ2 HF, HH
B	MN/MX2	MN undervoltage release or MX2 opening voltage release	Optional	Optional
	MX1	MX1 opening voltage release	Optional	Optional
	XF	XF closing voltage release	Optional	Optional
	PF	PF ready-to-close contact	Optional	Optional
	MCH	MCH gear motor	Optional	Optional
C	OF21–OF24	4 OF indication contacts	Optional	Optional
	OF11–OF14	4 OF indication contacts	Optional	Optional
	OF1–OF4	4 OF indication contacts	Standard	Standard