H
Russellstoll ®
Rating for Pilot/Control Contacts*
Contact Rating Code Designation A-600, Table 119.1 - U.L. 508 Heavy Pilot Duty Load (720 VA/600 VAC) Maximum
Thermal
Continuous Maximum Current, Ampere
Current Amps 120V 240V 480V 600V Max Volt Ampere
Make Break Make Break Make Break Make Break Make Break
10 60 6 30 3 15 1.5 12 1.2 7200 720
Engineering Specifications
Pin & Sleeve Plugs, Receptacles & Systems
1.0 Scope
1.1 This document covers multi-contact: pin & sleeve,
industrial grade, arc-quenching, circuit interrupting
rated electrical plugs, motor plugs, connectors,
receptacles, mechanically interlocked receptacles
and assorted accessories. Usable in dry, damp, wet,
marine and/or hazardous locations for electrical power
circuits. Devices are to be rated 30, 60, 100, 200 and/
or 400 amperes at 600 VAC, 50-400 Hz and 250 VDC
maximum. Devices are also rated for continuous use
in temperatures from -40 degrees C to + 130 degrees
C. These devices must provide internal environmental
seals for marine and extreme wet applications and
can be electrically interlocked.
1.2 The devices described shall be Thomas & Betts/
Russellstoll MaxGard catalog numbers as specified.
2.0 Product Classifications (Features)
2.1 Gated Dead Front – All receptacles and connectors
must have a rotating disk on the face of the interior
which provides live contact isolation and
environmental separation.
2.2 Delayed Action Arc Containment – All devices upon
disconnect under load shall have provision so the arc
is contained and extinguished within the insulation
cavity making it impossible to withdraw a live plug.
2.3 Flap Cover or Screw Cover Option – Flap cover
option must provide weathertight capability by utilizing
a spring actuated self closing flap. Watertight
capability shall be obtained by using a gasketed crew
cap.
2.4 Polarization – All devices shall be factory polarized
for amperage, voltage, frequency and phase; thus
providing a single voltage rating, single interface
system.
2.5 Grounding – The grounding of the device shall be
accomplished through a separate center ground
(earth) make-first and break-last pole on all devices
for complete system grounding.
2.6 Pole Capabilities – All devices shall accommodate
up to four power pins plus a separate center ground
pin and they shall be integral with the connector
bodies (5 pins total).
2.7 Interior Type – Interiors must be male (pin type) or
female (sleeve type). Pins and sleeves shall also be
self-aligning and self-wiping/self-cleaning.
2.8 Control Contacts – All devices must have an option
for two control contacts which shall be make-last and
break-first for use in electrical interlocks and/or control
circuits. See table below.
2.9 Conductor Terminals – Pin and sleeve connections
shall employ solderless pressure type screw terminals
and be sized to accept stranded or solid copper
conductors in AWG sizes (max. O.D.’s as noted). The
screw terminals shall also have socket heads to insure
proper torquing of wires.
2.10 Environmental Seals – Each device must have an
environmental seal or “O” ring around all interiors and
around each pin and sleeve to prevent water and
contaminants from entering the wiring compartment.
This provides waterproof capability, even when not
mated.
2.11 Hazardous Location – All standard plugs 30, 60 and
100 amp shall be UL and CSA listed for hazardous
location Class I Division 1, Groups C & D; Class II
Division 1, Groups F & G. A hazardous location
circuit-breaker protected interlock shall also be
applicable to the same environments and possess all
the same product features as outlined above.
Enclosures shall meet NEMA 8 hazardous outdoor
duty classifications and shall meet shipboard use
above deck in accordance with the Department of
Transportation. (USCG “Green Water”)
2.12 Lockout Devices – Plug connection lockout is
achieved by a padlock through plug sleeve housing
hole provided for this purpose. On Hazardous
Location/Explosion Proof Interlock Receptacles,
lockout shall additionally be achieved by separate
lockout accessory available from the factory. On
standard Interlocks, lockout accessory/construction is
available from the factory.
2.13 Horsepower Ratings – Horsepower ratings shall be
in accordance with NEC Article 430 conditions,
depending on applicable voltage up to 600 VAC. See
Chart Next Page.
MaxGard®Interconnection Systems
30-400/600 Amp Plugs, Connectors, Receptacles, Inlets and Interlocked Receptacles
H14 © 2002 Thomas & Betts Corporation. Specifications are subject to change without notice. www.tnb.com
Heavy Industrial/ Marine
412031.H01 MAX 3/5 3/14/03 6:40 PM Page 14