Accessories

Barriers attach to line side service terminals to prevent inadvertent contact by persons or maintenance equipment. QSB2 and QSB3 comply with NEC 230.62 Service Equipment (C) Barriers requirement for service equipment. Available as a field-installable accessory. Refer to instruction bulletin GDE55811 Service Barrier for
Q-Frame Unit Mount Circuit Breakers.

	Poles	Dimensions	Service Barrier Kit
	2	2.74 x 2.81 x 1.00 in. (69.5 x 71.4 x 25.5 mm)	QSB2
	3	2.74 x 4.30 x 1.00 in. (69.5 x 109.3 x 25.5 mm)	QSB3

The handle lock-off padlock attaches to the circuit breaker escutcheon for the two- or three-pole applications. The QBPA and QBPAL handle padlock attachments allow locking the handle in the ON (I) or OFF (O) position. The QBPAF handle padlock attachments allow locking in the OFF (O) position only. They are intended for use with the QBMIK mechanical interlock kit.

Handle Padlock Attachment QBPA

The QBMIK mechanical interlock kit is used with two circuit breakers to allow only one circuit breaker at a time to be in the ON (I) position.

Mechanical Interlock Attachment QBMIK

For further information refer to the following catalogs:

• Square D circuit breaker enclosures are UL 489 and CSA C22.2 No. 5 Certified.

• The enclosures are suitable for service entrance equipment (USA only).

• The short circuit current rating of an enclosed circuit breaker is equal to the rating of the circuit breaker installed, except as footnoted.

• All enclosures meet minimum dimensions for 15–60 A UL Listed / CSA Certified circuit breakers applied at 100% of their current rating.

• Circuit breakers are ordered and shipped separately for field installation.

Q22200NS

Q22200NRB

Q22200NRB