General Duty—Up to 100 kA Short Circuit Current Rating

Class 3130

General Duty—Up To 100 kA Short Circuit Current Rating

D223N

General duty safety switches are designed for residential and commercial applications where durability and economy are prime considerations. Typical loads are lighting, air conditioning, and appliances. They are suitable for use as service equipment when equipped with a factory or field-installed neutral assembly or a field-installed service grounding kit, (see Equipment Grounding Kits) as applicable.

General duty safety switches are UL Listed, File E2875, and meet or exceed the NEMA Standard KS1. NEC 2023 protects against these units from being applied in any application; for compliance with NE2023 obtain Heavy Duty Safety Switch.

240 Volt – Single Throw Fusible Switches

Fusible Single Throw Safety Switches

System	Amperes	NEMA TYPE 1	NEMA Type 3R ^[1]	Class R Fuse Kits ^[2]	Line Side Barrier	Horsepower Ratings
		NEMA TYPE 1	NEMA Type 3R ^[1]	Class R Fuse Kits ^[2]		Std. (Fast Acting One-Time Fuses		Max. (Dual Element Time-Delay Fuses)
		Cat. No.	Cat. No.	Cat. No.		1Ø	3Ø	1Ø	3Ø
2 Wire (1 Blade and Fuseholder, 1 Neutral)—120 Vac
Use Light Duty Devices or use three-wire devices
3 Wire (2 Blade and Fuseholder, 1 Neutral) – 120/240 Vac Plug Type Fuses
	30	D211N	D211NRB	—	—	1-1/2	—	3	—
3 Wire (2 Blade and Fuseholder, 1 Neutral) –240 Vac Cart. Type Fuses
	30	D221N	D221NRB	DRK30	—	1-1/2	3 ^[3]	3	7-1/2 ^[3]
	60	D222N	D222NRB	RFK03H	Factory Included	3	7-1/2 ^[3]	10	15 ^[3]
	100	D223N	D223NRB	RFK10	Factory Included	7–1/2	15 ^[3]	15	30 ^[3]
	200	D224N ^[4]	D224NRB ^[4]	HRK1020	Factory Included	15	25 ^[3]	—	60 ^[3]
	400	D225N	D225NR	DRK40	LSBI02	—	—	—	—
	600 ^[5]	D226N	D226NR	DRK600	LSBI02	—	—	—	—
4 Wire (3 Blade and Fuseholder, 1 Neutral) –240 Vac Cart. Type Fuses
	30	D321N	D321NRB	DRK30	—	1-1/2	3	3	7-1/2
	60	D322N	D322NRB	RFK03H	Factory Included	3	7-1/2 ^[6]	10	15 ^[6]
	100	D323N	D323NRB	RFK10	Factory Included	7-1/2	15 ^[6]	15	30 ^[6]
	200	D324N ^[4]	D324NRB ^[4]	HRK1020	Factory Included	15	25 ^[6]	—	60 ^[6]
	400	D325N	D325NR	DRK40	LSBI02	—	50	—	—
	600 ^[5]	D326N	D326NR	DRK600	LSBI02	—	75	—	150
4 Wire (3 Blade and Fuseholder, 1 Neutral) –240 Vac CLASS T Type Fuses
	400 ^[7]	D325NT	D325NTR	DRK40	LSBI02	—	50	—	—
	600 ^[7]	D326NT	D326NTR	DRK600	LSBI02	—	75	—	150
	800 ^[7]	T327N	T327NR	—	LSBI02	—	100	—	—

Fusible Switch UL Listed Maximum Short Circuit Current Ratings — AC Only

Fuse Class	UL Listed Short Circuit Rating
Plug	10 kA
H, K	10 kA
R	10 kA ^[8]
R with Rejection Fuse Clips	100 kA
J	100 kA
T	100 kA

240 Volt—Single Throw Non-Fusible Switches

Non-Fusible Single Throw Safety Switches

System	Amperes	NEMA Type 1	NEMA Type 3R ^[9]	Line Side Barriers ^[10]	Equipment Ground Kit	Neutral Kit	Horsepower Ratings (Max.) Max. (Dual Element Time-Delay Fuses)
System	Amperes	Cat. No.	Cat. No.	Line Side Barriers ^[10]	Cat. No.	Neutral Kit	1Ø	3Ø
2 Wire (2 Blade)—240 Vac
	30	—	DU221RB	—	PK3GTA1	—	3	—
	60	—	DU222RB	—	GTK03	—	10	—
	100	Use three wire switch	—	—	—	—	—	—
	200		—	—	—	—	—	—
	400		—	—	—	—	—	—
	600		—	—	—	—	—	—
3 Wire (3 Blade)—240 Vac
	30	DU321	DU321RB	—	PK3GTA1	—	3	7-1/2
	60	DU322	DU322RB	—	GTK03	—	10	15
	100	DU323 ^[11]	DU323RB ^[11]	Factory Included	GTK0610	—	10	30
	200	DU324 ^[12]	DU324RB ^[12]	Factory Included	PKOGTA2	—	15	60
	400	DU325	—	LSBI02	PKOGTA2	—	—	125
	600	DU326 ^[13]	—	LSBI02	PKOGTA2	—	—	150

System equal or less than 10 kA SCCR — Any Brand of circuit breaker or fuse not exceeding the ampere rating of the switch may be used in conjunction with a non-fusible safety switch.

Systems above 10kA SCCR — The UL listed short circuit current rating for Square D non-fusible switches is based upon the switch being used in conjunction with fuses or Square D circuit breakers or Mag-Gard motor circuit protection.

Non-Fusible Safety Switch Short Circuit Current Rating

Fuse Class or Circuit Breaker Type ^[14]	UL Listed Short Circuit Rating
Any Brand Circuit Breaker	10 kA
H or J PowerPact Circuit Breaker	Up to 65 kA ^[15]
H, K	10 kA
J, R	100 kA ^[16]
T	100 kA ^[17]

Section 3: Safety Switches

Section 3: Safety Switches

General Duty—Up to 100 kA Short Circuit Current Rating

Class 3130