CN320 Explosion-Proof Motor Protection Device

Explosion-proof performance conforms to

-CENELEC standard

-IEC standard

-NEC standard

Suitable for zone 1 and zone 2, zone 21 and zone 22, class II, zone 1 and zone 2, class II, zone 1, gas class C, D

This series of products are based on applicable gas type IIB products.

Copper-free aluminum housing with plastic-sprayed surface.

Built-in miniature circuit breaker (MCB), molded case circuit breaker (MCCB).

The leakage protection function can be installed.

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Ordering instructions

When placing an order, the user should specify the parameters of the motor switch in strict accordance with the "model meaning".

Please indicate the explosion-proof mark when ordering.

There are special requirements (such as the specifications and direction of the inlet and outlet ports), please specify.

Model Meaning

Technical Parameter

Explosion-proof motor protection device	CN320-63/□/□/□
Explosion proof typeGas explosion proof typeDust explosion proof type	Ⅱ2G Ex db IIB T6 GbⅡ2D Ex tb IIIC T80℃ Db
Executive standard	GB/T 3836.1, GB/T 3836.2, GB/T 3836.3, GB/T 3836.31EN 60079-0, EN 60079-1, EN 60079-31, IEC 60079-0, IEC 60079-1, IEC 60079-31
Shell material	Copper-free aluminum, plastic sprayed on the surface
Shell color	Window gray
Exposed fasteners	Stainless steel
Breaker	Mini circuit breaker (MCB)
Maximum working voltage	440V AC 50/60Hz
Rated voltage	1P/230V AC, 2P/3P/4P/400V AC 50/60Hz
Rated current	1A, 2A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Number of poles	1P, 2P, 3P, 4P
Breaking capacity	6kA, 10kA, 15kA
Tripping characteristics	Instantaneous trip range (5~10)In or (7~10)In or (10~14)In
Impulse withstand voltage	6kV
Protection level	IP65, IP66
Grounding inside and outside	M6/M8
Ambient temperature	-60℃~+60℃
Cable entry	Standard 1~16A: 2 x M25 x 1.5 Plugging20~32A: 2 x M32 x 1.5 Plugging40~63A: 2 x M40 x 1.5 Plugging
Cable entry device(optional)	Recommend to use CN970-II (Ex db) or CN970-III (Ex db)
Inlet direction	Bottom in and bottom out
Leakage protection function	The leakage protection function can be added as required