60118 SQUARE D, 60118 Datasheet - Page 10

• Manufacturer Part Number: 60118
• Description: MINIATURE CIRCUIT BREAKER 120V 1A
• Manufacturer: SQUARE D
• Series: Multi 9r

Specifications of 60118

• Actuator Style: Toggle
• No. Of Poles: 1
• Current Rating: 1A
• Voltage Rating Vac: 240V
• Mounting Type: DIN Rail
• Rohs Compliant: Yes

10
Multi 9™ System Catalog
Section 1—Introduction
07/2010
UL 1077 Standard—Supplementary Protection within the Product
Within the OEM product itself, additional (supplementary) protection for sensitive or critical internal
circuitry may be provided by one or more supplementary circuit protectors. A supplementary protector
is an overcurrent protection device which is specifically designed for OEM applications and which
complies with UL 1077 Standard for Supplementary Protectors for Use in Electrical Equipment.
Under UL 1077, supplementary protectors may be used under the following conditions:
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The following applications illustrated in Figure 3 allow the use of UL 1077 supplementary protectors:
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When branch overcurrent protection is already provided
If short-circuit protection is needed for sensitive devices within the equipment
When wiring connected to the supplementary protector does not exit the equipment to external
devices such as receptacles or motors
If the UL 1077 device does not provide the only means of disconnecting the product
The supplementary protection is used to supplement or provide additional protection to sensitive
components inside the equipment (see UL 1077 No. 1). A UL 489/CSA C22.2 No.5 circuit breaker
must be located upstream from the equipment.
Critical or sensitive internal circuitry (see UL 1077 No. 2) such as: Computers and microprocessors,
communications equipment, electronic controllers, power supplies and many other types of equipment
Motor control circuits may be protected by a UL 1077 device, unless the circuit includes a
transformer (in which case a UL 489/CSA C22.2 No.5 device is required).
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