Page 11-24 Download PDF
Home Online Catalog Products Tools and Resources Help

Square D > On-line Catalog > Products > 11 Obsolescent and Obsolete Circuit Breakers > Obsolescent Circuit Breakers: Masterpact® Circuit Breaker Control Units	Search

Supplemental and Obsolescence Digest 174

Obsolescent Circuit Breakers

Masterpact® Circuit Breaker Control Units

 

Masterpact® circuit breakers and related accessories are in obsolescence. Use Masterpact NT/NW for new applications. See DIgest 174. Limited service stock is available for replacement or fill purposes. Contact your local sales office for product availability.

 

Table 11.56:

Control Units

	Control Unit	$ Price	Ground-Fault Protectiona	Suffix	$ Price	Options	Suffix	$ Price
	STR 18M (Instantaneous protection only)
	STR18M	2812.00
	STR 28D (Long-time and instantaneous protection)
	STR28D (long-time = 0.4x1 sensor rating)	2978.00				Ammeter	I	1792.00
	STR28DP (long-time = 0.8x1 plug rating)	2760.00				Pre-trip overload indication switch	ALR	No charge
	STR 38S (Long-time, short-time and instantaneous protection)
	STR38S (long-time = 0.4x1 sensor rating)	4356.00	Residual type	T	1758.00	Ammeter	I	1792.00
	STR38SP (long-time = 0.8x1 plug rating)	4138.00	Source ground return type	W	1960.00	Pre-trip overload indication switch	ALR	No charge
			External neutral sensor (TCE) – see page 11-25			LED fault indicators on the circuit breaker front face (PIL or AD module or 24 Vdc external power supply is required)	F	714.00
						Power supply with battery	PIL	480.00
	STR 58U (long-time, short-time and instantaneous protection)
	STR58U (long-time = 0.4x1 sensor rating)	4892.00	Residual typeb	T	1758.00	Ammeter	I	1792.00
	STR58UP (long-time = 0.8x1 plug rating)	4674.00	Source ground return typeb	W	1960.00	Pre-trip overload indication switch	ALR	No charge
			External neutral sensor (TCE) b – see page 11-25			LED fault indicators on the circuit breaker front face (PIL or AD module or 24 Vdc external power supply is required)	F	714.00
						Segregated alarm switch (fault indicator [F] included. Output contact as a function of selected fault type. 24 Vdc external power supply or AD module is mandatory)	FV	1956.00
						Power supply with battery	PIL	480.00
						Zone-selective interlocking, for short-time protection (ST) and ground-fault protection (T/W)	Z	1630.00
						Load monitoring (outputs optical trial output contacts 0.1 A 240 Vac)	R	2114.00
						Communication (transmits all the trip unit parameters via Digipact® modules)	C	1282.00

a	External neutral sensor not included.

b	External AD module (see page 11-25) is required if load is below 20% or if setting is red zone.

 

Table 11.57:

Rating Plug (RL)

Sensor Rating	Plug Rating	Cat. No.	$ Price	Sensor Rating	Plug Rating	Cat. No.	$ Price
250 A	125 A	54731	218.00	2500 A	1200 A	54759	218.00
	150 A	54732	218.00		1600 A	54760	218.00
	200 A	54733	218.00		2000 A	54761	218.00
	250 A	54734	218.00	3000 A	1600 A	54763	218.00
400 A	200 A	54735	218.00		2000 A	54764	218.00
	250 A	54736	218.00		2500 A	54765	218.00
	300 A	54737	218.00		3000 A	54766	218.00
	400 A	54738	218.00	3200 A	1600 A	54846	218.00
600 A	300 A	54739	218.00		2000 A	54845	218.00
	400 A	54740	218.00		2500 A	54844	218.00