di MELTRIC Receptacles on Wall Boxes with Circuit Protection

Receptacles on Wall Boxes with Circuit Protection

MELTRIC mild steel wall box with fuseholders and receptacles

MELTRIC’s receptacle/wall box combinations with integral circuit protection combine the safety of a MELTRIC DSN Series switch rated receptacle with the convenience of local circuit protection in a compact package. The receptacle is premounted to the box and wired to the circuit protection device for easy installation.

Models are available with or without a viewing window and in either painted mild steel or stainless steel enclosures. The 20A and 30A models are available and equipped with fuseholders or mini-circuit breakers and the 60A models are available with supplementary protectors. (60A models are not available with fuses due to space constraints).



Fuseholder Equipped Models

meltric wall box with fuseholder

MELTRIC’s DSN Decontactor™ Series switch rated plugs and receptacles are UL rated to withstand and close-into a short circuit current up to 100kA in circuits protected by RK1 current limiting fuses or other fuses with lower let through energy like the Class CC type the fuseholders are designed for. This allows users to take advantage of the DSN’s capablities in applications where higher fault currents are not already protected with the required fusing.

Fuseholder models are available with 20A or 30A receptacles and feature Ferraz Shawmut Ultra-Safe Fuse Holders (UL 512/IEC 269). The fuseholders have a blown fuse indicator light for each pole and pivot open for easy and finger safe fuse replacement. Fuses are not provided. They should be selected for the specific application.

Circuit Breaker Equipped Models

meltric circuit breaker wall box

Circuit-breaker equipped models allow users to provide overload protection in a convenient location near the application. The 20A & 30A models feature Eaton WMZT miniature circuit breakers (UL 489) and the 60A models use Eaton WMZS supplementary protectors (UL 1077). All are provided standard with a ‘C’ trip curve. A ‘D’ trip curve for the 20A and 30A breakers, and a ‘B’ trip curve for the 60A supplementary protectors are also available as options.

Trip Curve Characteristics
"B" Curve: The protective device will instantaneously trip @ 3X to 5X its rated current
"C" Curve: The protective device will instantaneously trip @ 5X to 10X its rated current
"D" Curve: The protective device will instantaneously trip @ 10X to 20X its rated current

Enclosures

The wall boxes are Hoffman Inline® series enclosures.

Dimensions: Box exteriors = 9.84" x 7.87" x 5.91" (250mm x 200mm x 150mm)
Mounting footprint = 12.5" x 8" including the pre-onstalled mounting brackets
Box Materials: Mild steel boxes are 16 gauge, stainless steel boxes are 14 gauge type 304
Available door windows are 3/16" clear polycarbonate
Latch: Quarter turn slotted stainless steel design for easy operation and durability
Finish: Mild steel boxes are painted with a light gray textured polyester powercoat
Stainless Steel boxes have a #4 brushed finish
Environmental: Mild steel boxes are NEMA Type 4 and 12
Stainless Steel boxes are NEMA Type 4, 4X and 12