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AcquiSuite Ally 12 & 48 User Guide (Rev D)

11 | P a g e

METER SAFETY

Building Service Safety Requirements (Load Center, etc.)

• Equipment intended for use with field-installed current transformers that could be installed in

panel boards or switchgears shall observe the following:

• Always open or disconnect circuit from power-distribution system (or service) of building before

installing or servicing current transformers.

• A circuit breaker used as a disconnect must meet the requirements of IEC 60947-1 and IEC

60947-3 (Clause 6.11.4.2)

• Current transformers may not be installed in equipment where they exceed 75 percent of the

wiring space of any cross-sectional area within the equipment.

• Current transformers may not be installed in an area where they block ventilation openings.

• Current transformers may not be installed in an area of breaker arc venting.

• Not suitable for Class 2 wiring method nor intended for connection to Class 2 equipment.

• Secure current transformer and route conductors so that they do not directly contact live

terminals or bus.

• CTs shall be listed to UL2808

Meter Installation Safety Requirements

• AcquiSuite™ Ally meters must be installed in accordance with local electrical codes.

• Use copper conductors only.

• Connection to the mains terminals shall be made with 14 AWG minimum wire gauge.

• External secondary inputs and outputs should be connected to devices meeting the

requirements of IEC 60950

• The following additional requirements apply for Recognized board versions of the AcquiSuite™

Ally meter

• For use only with Listed Energy-monitoring Current Transformers

• Associated leads of the current transformers shall be maintained within the same overall

enclosure.

• Unless the current transformers and its leads have been evaluated for REINFORCED

INSULATION, the leads must be segregated or insulated from different circuits.

• The current transformers are intended for installation within the same enclosure as the

equipment. These may not be installed within switchgears and panel boards” or similar.

Obvius AcquiSuite Ally 12 User Manual

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