Test Report

Report Reference No.: 50337286 001
UL 1012
Clause
Requirement – Test
Result – Remark
Verdict
Page 38 of 75
Exception: If the power unit has provision for connection of a
grounded neutral conductor, individual single-pole circuit
breakers are acceptable as the protection for each ungrounded
conductor of a3-wire single phase circuit or for each
ungrounded conductor of a 4-wire, 3-phase circuit, provided
that no conductor involves a potential to ground in excess of
150 volts. See 61.1.9.
N/A
29.4
For a vertically mounted circuit breaker, the down position shall
be the "off" position.
Not such construction
N/A
29.5
An overcurrent protective device shall not be connected in the
grounded (neutral) side of the line.
P
Exception No. 1: Additional overcurrent protection may be
provided in the grounded side of the supply circuit when the
protective device simultaneously disconnects the grounded and
ungrounded conductors of the supply circuit.
N/A
Exception No. 2: A unit may incorporate a single-pole
overcurrent protective device connected in the grounded
(neutral) side of the line when:
N/A
a) The grounded circuit conductor is not depended on to carry
a current imbalance, such as in a unit supplied by a 3-phase, 4-
wire or a single-phase, 3-wire system;
N/A
b) Each ungrounded circuit conductor is provided with an
overcurrent protective device having a current rating no higher
than that of the overcurrent protective device in the grounded
circuit conductor;
N/A
c) The screw shell of a plug fuseholder and the accessible
contact of an extractor fuseholder located in the grounded
circuit conductor is connected toward the grounded supply line;
and
N/A
d) The unit is marked in accordance with 61.1.10.
N/A
30
Fuses and Fuseholders
P
30.1
A fuse and a fuseholder shall have voltage and current ratings
acceptable for the circuit in which they are connected.
250Vac, 6.3A
P
30.2
A fuse that is used to provide short-circuit protection for output
circuits in a household power unit shall not be interchangeable
with a fuse of a higher ampere rating.
N/A
30.3
A fuse that is used to provide short circuit protection for output
circuits in a commercial power unit shall be marked in
accordance with 61.1.7.
N/A
30.4
The screw shell of a plug-type fuseholder and the upper
terminal of an extractor-type fuseholder shall be connected
toward the load.
N/A
30.5
Unless acceptable for the application, a fuse and fuseholder
combination connected, but not required, in an output circuit
having an open-circuit voltage not exceeding 50 volts rms shall
be subjected to the test described in 54.4.1.
N/A
31
Output Alternating Current Power Circuits
N/A
31.1
Each ac output power circuit shall be provided with overcurrent
protection for all ungrounded conductors as described in 31.3 -
31.5. The voltage rating of the overcurrent protection shall not
be less than the rating of the circuit with which it is used. The
overcurrent protection device shall be a circuit breaker or a fuse
suitable for use as branch circuit protection.
N/A