Product Overview

Need to expand a single 400 A molded case circuit breaker into eight independent circuits? The 400-frame switch terminal with 8×16mm² outlets delivers the highest-density branch connection in its class. By mounting directly onto the breaker's M8 load studs, this compact block turns one 400A MCCB into a multi‑circuit feeder, supplying up to eight separate 16mm² outputs. It is purpose-built for crowded control cabinets and distribution panels where every millimeter of busbar space counts, and it includes factory‑installed interphase barriers to minimize arc‑flash risks between adjacent poles.

Technical Specifications

Parameter	Specification
Frame rating	400 A, compatible with 3-pole and 4-pole MCCBs
Outlet quantity & size	8 terminals, each accepting 4–16 mm² copper conductors
Inlet connection	M8 stud, direct bolt-on to the circuit breaker load terminal
Outlet connection	M5 screw clamp, direct compression type
Current per outlet	63 A (when using 16 mm² copper wire)
Contact material	High-conductivity copper alloy, tin-plated for corrosion resistance
Interphase barrier material	PA66+GF30, UL94 V-0 flame-retardant grade
Tightening torque	2.5–3.5 N·m (M5 outlets), 10–14 N·m (M8 inlet)
Pole pitch	18 mm, following DIN standard spacing
Total length	approximately 170 mm

Safety & Protection Features

The 8×16 terminal is engineered with multiple layers of electrical protection to ensure reliable performance in high‑current environments:

01.

Interphase insulation plates (removable or fixed)

block arc propagation between outlet poles during connection, disconnection, or short‑circuit events.

02.

Arc‑chute geometry

built into the housing walls helps contain and cool any arc energy, significantly lowering the chance of phase‑to‑phase faults.

03.

Extended creepage distances

between live parts exceed the minimum requirements of IEC 60947‑7‑1 for 690 V applications, offering an extra margin against tracking failures.

04.

IP20 touch‑proof construction

prevents accidental finger contact with energized parts, even when the optional transparent cover is not fitted.

These protective measures are especially valuable in the 8‑outlet configuration, where the close terminal spacing increases the risk of arcing compared to models with fewer outputs.

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Typical Applications

This high‑density switch terminal is commonly specified for:

Industrial motor control centers and automation panels

Power distribution units (PDUs) in data centers and server rooms

Commercial building switchboards and floor‑distribution cabinets

Any project that requires deriving eight 16mm² branch circuits from one 400A MCCB with robust phase‑barrier protection

Why Choose This Terminal?

By consolidating multiple branch circuits into a single breaker position, the 400‑frame 8×16 switch terminal reduces internal wiring complexity, saves valuable panel space, and maintains compliance with international safety standards. It offers a practical, cost‑effective way to maximise circuit density without compromising on protection or ease of installation.

product-1807-870