MA25 series Type 1+2 /Class B+C Switch-type surge protectors

Name: MA25 series Type 1+2 /Class B+C Switch-type surge protectors
Brand: Shenzhen Techwin Lightning Technologies Co., Ltd.

These series products are mainly used for Type 1+Type 2 protection of power distribution systems (10/350µs) and are used to protect electrical and electronic equipment from the damage of lightning electromagnetic pulse induced voltage, operating transients, and resonance (<100µs) overvoltage. Type 1 and type 2 surge protection device (spd) is widely used in power supply protection in communication equipment, electrical, electrical appliances, power equipment, CCTV, transportation, industrial control, aviation, and other fields. This series of products has the characteristics of fast response time, low residual pressure, timely tripping, etc., and the flame retardant level is V-0, which can prevent fire and play a role in safety protection.

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Feature of Type 1+2 AC Power SPD Series Products

DIN rail mounting for easy installation
Plug connectors for quick and easy connection or rewiring
Up-to 100kA impulse lightening test current protection
Switch type technology
LED based visual indication for device health.
Remote fault indication (optional)
Remote alarm function (optional)
IEC61643-11 compliant

Application of Type 1 and 2 AC Power SPD Series Products

Class B+C/Type 1+2 Surge Protective Device for AC Power System.
Designed to protect low voltage distribution systems
AC Power distribution box(cabinet), Switch power supply,
Column head cabinet
Charging station/charging point
Sensitive electronic equipment
Telecom centers
Automatic control centers
Intelligent buildings, Industrial enterprises
IT, TT, TN-C, TN-S, TN-C-S and other power supply system

Wiring Diagram of Surge Protection Type 1 and 2 Series Products

MA25/1+N, MA50/1+N

MA25/3+N MA50/3+N

MA25/3 MA50/3

Technical Parameters of MA25 Type 1 and Type 2 Surge Protection SPD

Model	MA25	MA25/2	MA25/1+N	MA25/4	MA25/3+N
Lighning proection zone(LPZ)	1-2
Standards Compliance	IEC61643-11, EN60950
Classification	Class B+C/Type 1+Type 2
Nominal working voltage Un	220-240V AC			380-440V AC
Max continuous operating voltage Uc	L-N 275V, N-PE 255V
Max discharge current (10/350µs) Iimp	L-N 25KA, N-PE 100KA
Nominal discharge current In	L-N 25KA, N-PE 100KA
Max discharge current Imax (8/20µs) Imax	L-N100KA, N-PE:150KA
Follow current interrupt rating Ifi	25KArms/100Arms
Short-Circuit Current Rating Isccr	25KA
Temporary overvoltage (TOV)(L-N) Ut	440 V / 120 min. – withstand
Temporary overvoltage (TOV) [N-PE) Ut	1200 V / 200 ms – withstand
Voltage protection level 8/20µs Up	≤1500V
Response time tA (L-N/N-PE)	100ns
Protection mode	L-PE	L/N-PE	L-N, N-PE	L1/L2/L3,N-PE	L1/L2/L3-N,N-PE
Housing material	PA66 UL94 V-0
Dimension	91 (H)×18(W)×65(L)mm	91(H)×36(W)×65(L)mm		91 (H)×72(W)×65(L)mm
Mounting	DIN rail Mounting 35mm
IP code	IP20
Working conditions	Temperature: -40 to 80℃, Relative humidity: ≤95％

Technical Parameters of MA50 Type 1 & 2 Surge Protection AC Power SPD

Model	MA50B1+N	MA50B3+N
Lightning protection zone(LPZ)	1-2
Standards Compliance	IEC61643-11, EN60950
Classification	Class B+C/Type 1+Type 2
Nominal working voltage Un	220-240V/380-415V
Max continuous operating voltage Uc	L-N: 440V, N-PE: 255V
Lightning escape capacity (10/350µs) Iimp	L-N: 50KA, N-PE: 50kA	L-N: 50KA, N-PE: 100kA
Max discharge current Imax (8/21µs) Imax	L-N: 100KA, N-PE:100K	L-N: 100KA, N-PE: 150KA
Follow current interrupt rating Ifi	L-N: 25KArms, N-PE: 100Arms
Short-Circuit Current Rating Isccr	25KA
Temporary overvoltage (TOV) Ut	tT = 120 minutes, ≥ 440 VAC
Protection level 6kV（1.2/50µs) Up	≤1.4KV
Response time tA (L-N/N-PE)	≤100NS
Protection model	L-N, N-PE	L1/L2/L3-N, N-PE
Dimension	90 (H)×36(W)×65(L)mm	90 (H)×72(W)×65(L)mm
Mounting	35mm DIN rail
Recommend cross-sectional area	L/N ≥16mm2, PE≥25mm2
IP code	IP20
Working conditions	Temperature: -40 to 80℃, Relative humidity: ≤95％