Wiring Diagrams

Unit-Mount Circuit Breakers

Power	MicroLogic Trip Unit	Remote Operation

		Motor Operator

		Communicating Motor Operator

Indication Contacts

The diagram is shown with circuits de-energized, relays in normal position, and all devices open, connected, and charged. Terminal connections shown as O must be connected by the customer.
MicroLogic Trip Unit A or E		Remote Operation
A/E	Communication	MN	Undervoltage Release
	H (WH), L(BL): data	or
	-(BK), +(RD): 24 Vdc power supply	MX	Shunt Release
A/E	ZSI (Zone Selective Interlocking)	Motor Operator
	Z1: ZSI OUT SOURCE	A4	Opening Order
	Z2: ZSI OUT	A2	Closing Order
	Z3: ZSI IN SOURCE	B4, A1	Power Supply to Motor Operator
	Z4: ZSI IN ST (short time)	L1	Manual Position (manu)
	Z5: ZSI IN GF (ground fault)	B2	Overcurrent Trip Switch Interlocking (mandatory for correct operation)
	(Z3, Z4, and Z5 for L-frame circuit breaker only)	BPO	Opening Pushbutton
A/E	ENCT: External Neutral Current Transformer:	BPF	Closing Pushbutton
	—Shielded cable with 1 twisted pair (T1, T2)	Communicating Motor Operator
	—Shielding earthed at CT end only	B4, A1	Motor Operator Power Supply
	Connection L = 12 in. (30 cm) max.	BSCM	Breaker Status and Control Module
	—Maximum length of 33 ft. (10 m)	Indication Contacts
	—Cable size of 22 AWG	OF2/OF1	Device ON/OFF Auxiliary Switches
	—Recommended cable: Belden 9451SB or equivalent	OF3	Device ON/OFF Auxiliary Switches (L-Frame)
E	ENVT: External Neutral Voltage Tap for Connection to the Neutral using a Three-Pole Circuit Breaker	SDE	Overcurrent Trip Switch (short-circuit, overload, ground fault, earth leakage)
Color Code for Auxiliary Wiring		SD	Alarm Switch
RD: Red	VI: Violet	CAF2/CAF1	Early-Make Contact (rotary handle only)
WH: White	GY: Gray	CAO1	Early-Break Contact (rotary handle only)
YE: Yellow	OR: Orange
BK: Black	BL: Blue
GN: Green

Plug-In and Drawout Circuit Breakers

Power	MicroLogic Trip Unit1	Remote Operation

		Motor Operator

		Communicating Motor Operator

Indication Contacts			Carriage Switches

The diagram is shown with circuits de-energized, relays in normal position, and all devices open, connected, and charged. Terminal connections shown as O must be connected by the customer.
MicroLogic Trip Unit A or E			Remote Operation
A/E	Communication		MN or	Undervoltage Release
	-(BK), +(RD): 24 Vdc power supply		MX	Shunt Release
A/E*	ZSI (Zone Selective Interlocking)		Motor Operator
	Z1: ZSI OUT SOURCE		A4	Opening Order
	Z2: ZSI OUT		A2	Closing Order
	Z3: ZSI IN SOURCE		B4, A1	Power Supply to Motor Operator
	Z4: ZSI IN ST (short time)		L1	Manual Position (manu)
	Z5: ZSI IN GF (ground fault)		B2	Overcurrent Trip Switch Interlocking (mandatory for correct operation)
A/E	ENCT: External Neutral Current Transformer:		BPF	Closing Pushbutton
	—Shielded cable with 1 twisted pair (T1, T2)		Communicating Motor Operator
	—Shielding earthed at CT end only		B4, A1	Motor Operator Power Supply
	—Connection L = 12 in. (30 cm) max.		BSCM	Breaker Status and Control Module
	—Maximum length of 33 ft. (10 m)		Indication Contacts
	—Cable size of 22 AWG		OF2/OF1	Device ON/OFF Auxiliary Switches
	—Recommended cable: Belden 9451SB or equivalent		OF3	Device ON/OFF Auxiliary Switches (L-Frame)
E	ENVT: External Neutral Voltage Tap for Connection to the Neutral using a Three-Pole Circuit Breaker		SDE	Overcurrent Trip Switch (short-circuit, overload, ground fault, earth leakage)
Color Code for Auxiliary Wiring			SD	Alarm Switch
RD: Red	BK: Black	GY: Gray	CAF2/CAF1	Early-Make Contact (rotary handle only)
WH: White YE: Yellow	GN: Green VI: Violet	OR: Orange BL: Blue	CAO1	Early-Break Contact (rotary handle only)

Motor Operator

The diagram is shown with circuits de-energized, relays in normal position, and all devices open, connected, and charged.

After tripping initiated by the “Push to trip” button, the undervoltage release (MN), or the shunt release (MX), device can be reset automatically, remotely, or manually.

Following tripping due to an electrical fault, reset must be carried out manually.

Motor Operator with Automatic Reset		Motor Operator with Remote Reset

Symbols		Motor Operator with Manual Reset
Q:	Circuit Breaker
A4:	Opening Order
A2:	Closing Order
B4, A1:	Motor Operator Power Supply
L1:	Manual Position (manu)
B2:	Overcurrent Trip Switch Interlocking (mandatory for correct operation)
BPO:	Opening Pushbutton
BPF:	Closing Pushbutton
SDE:	Fault-Trip Indication Contact (short-circuit, overload, ground fault, earth leakage)

Symbols		Communicating Motor Operator
Q:	Circuit Breaker
B4, A1:	Motor Operator Power Supply
BSCM:	Breaker Status and Control Module

RSU Screen for Communicating Motor Operator

Single-line diagram of communicating motor operator Opening, closing and reset orders are transmitted through the communication network. The “Enable automatic reset” and “Enable reset even if SDE” parameters must be set using the RSU software using the screen by clicking the blue text. “Auto/Manu” is a switch on the front of the motor operator. Terminal connections shown as O must be connected by the customer.

PowerPacT H & J DC Wiring Diagrams

Type	Grounded Negative *	Grounded Middle Point	Ungrounded Source
	250 Vdc	≤250 Vdc	≤250 Vdc
2P
3P

Circuit Breaker Specifications (UL® / CSA® / NOM®)
Circuit Breaker Type	250 Vdc*
D, G, J, L	20 kA

SDx Module with MicroLogic Trip Unit

NOTE: The diagram is shown with circuits de-energized, relays in normal position, and all devices open, connected, and charged.			Connection


Symbols
SD1, SD3:	SDx Module Power Supply
SD2:	Output 1 (80 mA max.)
SD4:	Output 2 (80 mA max.)

	SD2	SD4
MicroLogic 3	SDT	—
MicroLogic 5	SDT or Output 1	PAL I_r or Output 2
MicroLogic 6	SDT or Output 1	SDG or Output 2
Terminal connections shown as O must be connected by the customer.
			Operation

			I:	Charge Current
			PAL I_r:	Thermal Overload Pre-Alarm
			SDG:	Ground-Fault Signal
			SDT:	Thermal-Fault Signal
			Q:	Circuit Breaker

SDTAM Module with MicroLogic M Trip Unit

NOTE: The diagram is shown with circuits de-energized, relays in normal position, and all devices open, connected, and charged.			Connection


Symbols
SD1, SD3:	SDTAM Module Power Supply
SD2:	Thermal Fault Signal (80 mA max.)
SD4:	Contactor Control Output (80 mA max.)

	SD2	SD4
MicroLogic 2 M	SDT	KA1
Terminal connections shown as O must be connected by the customer.

			Operation

			I:	Charge Current
			SDT:	Thermal Fault Signal
			KA1:	Auxiliary Relay (RBN or RTBT Relay)
			KM1:	Motor Contactor
			Q:	Circuit Breaker