Scope of Application
TLM1Molded Case Circuit Breaker (M13-400, hereinafter referred to as MCCB), is new circuit breakers which have been designed and developed by the company using international advanced technology. The circuit breakers are of the following characteristics: compact size, high breaking capacity, short arc-over distance and shakeproof, is ideal products applied on land or ships. The rated insulation voltage of the circuit breaker is 800V (500V for M13-63), it is suitable for the distribution network of AC 50Hz / 60Hz, rated working voltage of 690V and rated current of 1250A, to distribute power and protect circuit and power equipment from being damaged caused by overload , short-circuit, under-voltage and other fault. Also for protection infrequent conversion of the circuits and infrequent start of motor and overload, short circuit, under voltage.
TLM1circuit breaker can be mounted vertically (upright) or horizontally (transverse).
TLM1MCCB is suitable for isolation and the symbol is ” “.
TLM1MCCB meets the standard: GB14048.2 “low-voltage switchgear and control equipment, Part 2: circuit breakers.”
Model and Meaning
According to the pole, it classifies four types:
Type A: N-pole without over-current release components, and N-pole has been connected all along, and does not act with other three poles to turn on or off;
B-type: N-pole without over-current release components, and N-pole could act with other three poles (N-pole turn-on prior to turn-off);
Type C: N-pole fixed with over-current release components, and N-pole could act with other three poles (N-pole turn-on prior to turn-off);
D-type: N-pole fixed with over-current release components, and N-pole has been connected all along, and does not act with other three poles to turn on or off.
Circuit breaker for distribution without code, circuit breaker for motor protection with 2
No code for direct operation with handle; P for electric operation; Z for turning handle.
Classification according to rated current of over-current release:
TLM1-63 MCCB has nine: 6,10,16,20,25,32,40,50,63 A;
TLM1-100 MCCB has nine: 16,20,25,32,40,50,63,80,100 A;
TLM1-225 MCCB has seven: 100,125,140,160,180,200,225 A;
TLM1-400 MCCB has five: 225,250,315,350,400 A;
TLM1-630 MCCB has three: 400,500,630 A;
TLM1-800 MCCB has three: 630,700,800A;
TLM1-1250 MCCB has three: 800,1000,1250A.
Note: 6A only has electromagnetic (instantaneous) type, is not recommended specifications.
According to the wiring method: wiring in front of board, wiring on back of board, insertion type of the board.
According to over-current release pattern: thermodynamic-electromagnetic (double) type, electromagnetic (instantaneous) type.
According to the outfit, it has two types: with or without outfit.
The outfit include inner accessories and outside accessories: The inner accessories have shunt release, under-voltage release, auxiliary contact and alarm contact. The outside accessories are turning handle operation mechanism, power-driven operation mechanism and so on.
According to the breaking capacity: L-standard breaking type; M-second high breaking type; H-high breaking type
Normal operating conditions
■ Ambient air temperature: -5℃~+40℃, and average temperature in 24h is below +35℃.
■ Altitude: The altitude of the installation site is not more than 2000m.
■ Atmospheric conditions: The air relative humidity in the highest temperature +40℃ is not more than 50%; In the low temperature can have higher relative humidity. The maximum average relative humidity is 90%, while the average monthly minimum temperature is +25℃, and consider the temperature changes in product on the surface of the gel.
■ Pollution Degree: 3.
